From bdc9dc4c4c73a5254c1a8402a2bd7e933965df2a Mon Sep 17 00:00:00 2001
From: Shannon Pamperl <shanman190@gmail.com>
Date: Mon, 3 Jul 2023 09:37:44 -0500
Subject: [PATCH] Add `UpdateMavenWrapper` recipe including checksum
 verification (#3392)

* Add `UpdateMavenWrapper` recipe including checksum verification

Fixes gh-1565 and gh-2996

* Add missing license headers

* Ensure cmd files are using crlf line endings
---
 .gitattributes                                |   1 +
 .../main/java/org/openrewrite/Checksum.java   |  15 +-
 .../java/org/openrewrite/remote/Remote.java   |  11 +-
 .../org/openrewrite/remote/RemoteArchive.java |   4 +
 .../org/openrewrite/remote/RemoteFile.java    |   4 +
 rewrite-maven/build.gradle.kts                |   2 +-
 .../openrewrite/maven/UpdateMavenWrapper.java | 482 ++++++++++++++++++
 .../maven/utilities/MavenWrapper.java         | 216 ++++++++
 .../maven/UpdateMavenWrapperTest.java         | 418 +++++++++++++++
 rewrite-maven/src/test/resources/mvnw         | 287 +++++++++++
 rewrite-maven/src/test/resources/mvnw.cmd     | 187 +++++++
 11 files changed, 1619 insertions(+), 8 deletions(-)
 create mode 100644 rewrite-maven/src/main/java/org/openrewrite/maven/UpdateMavenWrapper.java
 create mode 100644 rewrite-maven/src/main/java/org/openrewrite/maven/utilities/MavenWrapper.java
 create mode 100644 rewrite-maven/src/test/java/org/openrewrite/maven/UpdateMavenWrapperTest.java
 create mode 100644 rewrite-maven/src/test/resources/mvnw
 create mode 100644 rewrite-maven/src/test/resources/mvnw.cmd

diff --git a/.gitattributes b/.gitattributes
index d21dc057c39..a7e78915851 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -7,6 +7,7 @@
 
 # These are explicitly windows files and should use crlf
 *.bat           text eol=crlf
+*.cmd           text eol=crlf
 
 # These files are text and should be normalized (Convert crlf => lf)
 *.bash          text eol=lf
diff --git a/rewrite-core/src/main/java/org/openrewrite/Checksum.java b/rewrite-core/src/main/java/org/openrewrite/Checksum.java
index 5a3c4a87270..918beb9c7cf 100644
--- a/rewrite-core/src/main/java/org/openrewrite/Checksum.java
+++ b/rewrite-core/src/main/java/org/openrewrite/Checksum.java
@@ -18,6 +18,7 @@
 import lombok.Value;
 import org.openrewrite.internal.lang.Nullable;
 import org.openrewrite.ipc.http.HttpSender;
+import org.openrewrite.remote.Remote;
 
 import java.io.IOException;
 import java.io.InputStream;
@@ -99,14 +100,20 @@ public static SourceFile checksum(SourceFile sourceFile, @Nullable String algori
 
         try {
             MessageDigest md = MessageDigest.getInstance(algorithm);
-            try (InputStream is = Files.newInputStream(sourceFile.getSourcePath());
-                 DigestInputStream dis = new DigestInputStream(is, md)) {
+            InputStream is;
+            if (sourceFile instanceof Remote) {
+                is = ((Remote) sourceFile).getInputStream(new InMemoryExecutionContext());
+            } else {
+                is = Files.newInputStream(sourceFile.getSourcePath());
+            }
+
+            try (DigestInputStream dis = new DigestInputStream(is, md)) {
                 //noinspection StatementWithEmptyBody
                 while (dis.read() != -1) {
-                    // read decorated stream to EOF
+                    // read stream to EOF
                 }
+                return sourceFile.withChecksum(new Checksum(algorithm, md.digest()));
             }
-            return sourceFile.withChecksum(new Checksum(algorithm, md.digest()));
         } catch (NoSuchAlgorithmException | IOException e) {
             throw new IllegalArgumentException(e);
         }
diff --git a/rewrite-core/src/main/java/org/openrewrite/remote/Remote.java b/rewrite-core/src/main/java/org/openrewrite/remote/Remote.java
index 3399a7bd87a..daed280455d 100644
--- a/rewrite-core/src/main/java/org/openrewrite/remote/Remote.java
+++ b/rewrite-core/src/main/java/org/openrewrite/remote/Remote.java
@@ -170,19 +170,24 @@ public Builder fileAttributes(FileAttributes fileAttributes) {
             return this;
         }
 
+        public Builder checksum(Checksum checksum) {
+            this.checksum = checksum;
+            return this;
+        }
+
         public RemoteFile build() {
-            return new RemoteFile(id, sourcePath, markers, uri, charset, charsetBomMarked, fileAttributes, description);
+            return new RemoteFile(id, sourcePath, markers, uri, charset, charsetBomMarked, fileAttributes, description, checksum);
         }
 
         public RemoteArchive build(Path path) {
             return new RemoteArchive(id, sourcePath, markers, uri, charset, charsetBomMarked, fileAttributes, description,
                     Arrays.asList(path.toString().replace("/", "\\/").replace(".", "\\.")
-                            .split("!")));
+                            .split("!")), checksum);
         }
 
         public RemoteArchive build(String... paths) {
             return new RemoteArchive(id, sourcePath, markers, uri, charset, charsetBomMarked, fileAttributes, description,
-                    Arrays.asList(paths));
+                    Arrays.asList(paths), checksum);
         }
     }
 }
diff --git a/rewrite-core/src/main/java/org/openrewrite/remote/RemoteArchive.java b/rewrite-core/src/main/java/org/openrewrite/remote/RemoteArchive.java
index 56ca127d21e..bb736eba396 100644
--- a/rewrite-core/src/main/java/org/openrewrite/remote/RemoteArchive.java
+++ b/rewrite-core/src/main/java/org/openrewrite/remote/RemoteArchive.java
@@ -19,6 +19,7 @@
 import lombok.Value;
 import lombok.With;
 import org.intellij.lang.annotations.Language;
+import org.openrewrite.Checksum;
 import org.openrewrite.ExecutionContext;
 import org.openrewrite.FileAttributes;
 import org.openrewrite.HttpSenderExecutionContextView;
@@ -81,6 +82,9 @@ public class RemoteArchive implements Remote {
      */
     List<String> paths;
 
+    @Nullable
+    Checksum checksum;
+
     @Override
     public InputStream getInputStream(ExecutionContext ctx) {
         HttpSender httpSender = HttpSenderExecutionContextView.view(ctx).getHttpSender();
diff --git a/rewrite-core/src/main/java/org/openrewrite/remote/RemoteFile.java b/rewrite-core/src/main/java/org/openrewrite/remote/RemoteFile.java
index edd2798e790..b4a0e91b910 100644
--- a/rewrite-core/src/main/java/org/openrewrite/remote/RemoteFile.java
+++ b/rewrite-core/src/main/java/org/openrewrite/remote/RemoteFile.java
@@ -19,6 +19,7 @@
 import lombok.Value;
 import lombok.With;
 import org.intellij.lang.annotations.Language;
+import org.openrewrite.Checksum;
 import org.openrewrite.ExecutionContext;
 import org.openrewrite.FileAttributes;
 import org.openrewrite.HttpSenderExecutionContextView;
@@ -57,6 +58,9 @@ public class RemoteFile implements Remote {
     @Language("markdown")
     String description;
 
+    @Nullable
+    Checksum checksum;
+
     @Override
     public InputStream getInputStream(ExecutionContext ctx) {
         HttpSender httpSender = HttpSenderExecutionContextView.view(ctx).getHttpSender();
diff --git a/rewrite-maven/build.gradle.kts b/rewrite-maven/build.gradle.kts
index 237ce066086..2a9c6f06417 100755
--- a/rewrite-maven/build.gradle.kts
+++ b/rewrite-maven/build.gradle.kts
@@ -31,7 +31,7 @@ dependencies {
 
     compileOnly("org.rocksdb:rocksdbjni:latest.release")
     compileOnly(project(":rewrite-yaml"))
-    compileOnly(project(":rewrite-properties"))
+    implementation(project(":rewrite-properties"))
 
     implementation("io.micrometer:micrometer-core:1.9.+")
 
diff --git a/rewrite-maven/src/main/java/org/openrewrite/maven/UpdateMavenWrapper.java b/rewrite-maven/src/main/java/org/openrewrite/maven/UpdateMavenWrapper.java
new file mode 100644
index 00000000000..f98856588f8
--- /dev/null
+++ b/rewrite-maven/src/main/java/org/openrewrite/maven/UpdateMavenWrapper.java
@@ -0,0 +1,482 @@
+/*
+ * Copyright 2023 the original author or authors.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * https://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.openrewrite.maven;
+
+import lombok.*;
+import lombok.experimental.FieldDefaults;
+import lombok.experimental.NonFinal;
+import org.openrewrite.*;
+import org.openrewrite.internal.ListUtils;
+import org.openrewrite.internal.StringUtils;
+import org.openrewrite.internal.lang.Nullable;
+import org.openrewrite.marker.BuildTool;
+import org.openrewrite.marker.Markers;
+import org.openrewrite.maven.utilities.MavenWrapper;
+import org.openrewrite.properties.PropertiesIsoVisitor;
+import org.openrewrite.properties.PropertiesParser;
+import org.openrewrite.properties.PropertiesVisitor;
+import org.openrewrite.properties.search.FindProperties;
+import org.openrewrite.properties.tree.Properties;
+import org.openrewrite.quark.Quark;
+import org.openrewrite.remote.Remote;
+import org.openrewrite.semver.Semver;
+import org.openrewrite.semver.VersionComparator;
+import org.openrewrite.text.PlainText;
+
+import java.time.ZonedDateTime;
+import java.util.*;
+
+import static java.util.Objects.requireNonNull;
+import static org.openrewrite.PathUtils.equalIgnoringSeparators;
+import static org.openrewrite.internal.StringUtils.isBlank;
+import static org.openrewrite.maven.utilities.MavenWrapper.*;
+
+/**
+ * This recipe expects for the specified repository to be a Maven layout with `maven-metadata.xml` files containing all
+ * the following REQUIRED publications:
+ *
+ * org.apache.maven.wrapper:maven-wrapper:{wrapperVersion}
+ * org.apache.maven.wrapper:maven-wrapper-distribution:{wrapperVersion}
+ * org.apache.maven:apache-maven:{distributionVersion}
+ */
+@RequiredArgsConstructor
+@FieldDefaults(level = AccessLevel.PRIVATE)
+@EqualsAndHashCode(callSuper = true)
+public class UpdateMavenWrapper extends ScanningRecipe<UpdateMavenWrapper.MavenWrapperState> {
+    private static final String DISTRIBUTION_URL_KEY = "distributionUrl";
+    private static final String DISTRIBUTION_SHA_256_SUM_KEY = "distributionSha256Sum";
+    private static final String WRAPPER_URL_KEY = "wrapperUrl";
+    private static final String WRAPPER_SHA_256_SUM_KEY = "wrapperSha256Sum";
+
+    @Getter
+    @Option(displayName = "New wrapper version",
+            description = "An exact version number or node-style semver selector used to select the wrapper version number.",
+            example = "3.x",
+            required = false)
+    @Nullable
+    final String wrapperVersion;
+
+    @Getter
+    @Option(displayName = "Wrapper Distribution type",
+            description = "The distribution of the Maven wrapper to use.\n\n" +
+                    "* \"bin\" uses a `maven-wrapper.jar` compiled binary.\n" +
+                    "* \"only-script\" uses a lite version of `mvnw`/`mvnw.cmd` using wget/curl or powershell. (required wrapper 3.2.0 or newer)\n" +
+                    "* \"script\" downloads `maven-wrapper.jar` or `MavenWrapperDownloader.java` to then download a full distribution.\n" +
+                    "* \"source\" uses `MavenWrapperDownloader.java` source file.\n\n" +
+                    "Defaults to \"bin\".",
+            valid = {"bin", "only-script", "script", "source"},
+            required = false)
+    @Nullable
+    final String wrapperDistribution;
+
+    @Getter
+    @Option(displayName = "New distribution version",
+            description = "An exact version number or node-style semver selector used to select the Maven version number.",
+            example = "3.x",
+            required = false)
+    @Nullable
+    final String distributionVersion;
+
+    @Getter
+    @Option(displayName = "Repository URL",
+            description = "The URL of the repository to download the Maven wrapper and distribution from. Supports repositories " +
+                    "with a Maven layout. Defaults to `https://repo.maven.apache.org/maven2`.",
+            example = "https://repo.maven.apache.org/maven2",
+            required = false)
+    @Nullable
+    final String repositoryUrl;
+
+    @Getter
+    @Option(displayName = "Add if missing",
+            description = "Add a Maven wrapper, if it's missing. Defaults to `true`.",
+            required = false)
+    @Nullable
+    final Boolean addIfMissing;
+
+    @Override
+    public String getDisplayName() {
+        return "Update Maven wrapper";
+    }
+
+    @Override
+    public String getDescription() {
+        return "Update the version of Maven used in an existing Maven wrapper.";
+    }
+
+    @Override
+    public Validated<Object> validate() {
+        Validated<Object> validated = super.validate();
+        if (wrapperVersion != null) {
+            validated = validated.and(Semver.validate(wrapperVersion, null));
+        }
+        if (distributionVersion != null) {
+            validated = validated.and(Semver.validate(distributionVersion, null));
+        }
+        return validated;
+    }
+
+    @NonFinal
+    @Nullable
+    transient MavenWrapper mavenWrapper;
+
+    private MavenWrapper getMavenWrapper(ExecutionContext ctx) {
+        if (mavenWrapper == null) {
+            mavenWrapper = MavenWrapper.create(wrapperVersion, wrapperDistribution, distributionVersion, repositoryUrl, ctx);
+        }
+        return mavenWrapper;
+    }
+
+    static class MavenWrapperState {
+        boolean needsWrapperUpdate = false;
+        @Nullable BuildTool updatedMarker;
+        boolean addMavenWrapperProperties = true;
+        boolean addMavenWrapperDownloader = true;
+        boolean addMavenWrapperJar = true;
+        boolean addMavenShellScript = true;
+        boolean addMavenBatchScript = true;
+    }
+
+    @Override
+    public MavenWrapperState getInitialValue(ExecutionContext ctx) {
+        return new MavenWrapperState();
+    }
+
+    @Override
+    public TreeVisitor<?, ExecutionContext> getScanner(MavenWrapperState acc) {
+        return Preconditions.or(
+                new PropertiesVisitor<ExecutionContext>() {
+                    @Override
+                    public boolean isAcceptable(SourceFile sourceFile, ExecutionContext ctx) {
+                        if (!super.isAcceptable(sourceFile, ctx)) {
+                            return false;
+                        }
+
+                        if (equalIgnoringSeparators(sourceFile.getSourcePath(), WRAPPER_PROPERTIES_LOCATION)) {
+                            acc.addMavenWrapperProperties = false;
+                        } else if (!PathUtils.matchesGlob(sourceFile.getSourcePath(), "**/" + WRAPPER_PROPERTIES_LOCATION_RELATIVE_PATH)) {
+                            return false;
+                        }
+
+                        Optional<BuildTool> maybeBuildTool = sourceFile.getMarkers().findFirst(BuildTool.class);
+                        if (!maybeBuildTool.isPresent()) {
+                            return false;
+                        }
+                        BuildTool buildTool = maybeBuildTool.get();
+                        if (buildTool.getType() != BuildTool.Type.Maven) {
+                            return false;
+                        }
+
+                        MavenWrapper mavenWrapper = getMavenWrapper(ctx);
+
+                        VersionComparator versionComparator = requireNonNull(Semver.validate(isBlank(distributionVersion) ? "latest.release" : distributionVersion, null).getValue());
+                        int compare = versionComparator.compare(null, buildTool.getVersion(), mavenWrapper.getDistributionVersion());
+                        // maybe we want to update the distribution url
+                        if (compare < 0) {
+                            acc.needsWrapperUpdate = true;
+                            acc.updatedMarker = buildTool.withVersion(mavenWrapper.getDistributionVersion());
+                            return true;
+                        } else return compare == 0;
+                    }
+
+                    @Override
+                    public Properties visitFile(Properties.File file, ExecutionContext executionContext) {
+                        Properties p = super.visitFile(file, executionContext);
+                        if (FindProperties.find(p, DISTRIBUTION_SHA_256_SUM_KEY, null).isEmpty() ||
+                                FindProperties.find(p, WRAPPER_SHA_256_SUM_KEY, null).isEmpty()) {
+                            acc.needsWrapperUpdate = true;
+                        }
+                        return p;
+                    }
+
+                    @Override
+                    public Properties visitEntry(Properties.Entry entry, ExecutionContext ctx) {
+                        MavenWrapper mavenWrapper = getMavenWrapper(ctx);
+                        if ("distributionUrl".equals(entry.getKey())) {
+                            // Typical example: https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.0/apache-maven-3.8.0-bin.zip
+                            String currentDistributionUrl = entry.getValue().getText();
+                            if (!mavenWrapper.getPropertiesFormattedDistributionUrl().equals(currentDistributionUrl)) {
+                                acc.needsWrapperUpdate = true;
+                            }
+                        } else if ("wrapperUrl".equals(entry.getKey())) {
+                            // Typical example: https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar
+                            String currentWrapperUrl = entry.getValue().getText();
+                            if (!mavenWrapper.getPropertiesFormattedWrapperUrl().equals(currentWrapperUrl)) {
+                                acc.needsWrapperUpdate = true;
+                            }
+                        }
+                        return entry;
+                    }
+                },
+                new TreeVisitor<Tree, ExecutionContext>() {
+                    @Override
+                    public boolean isAcceptable(SourceFile sourceFile, ExecutionContext ctx) {
+                        if (!super.isAcceptable(sourceFile, ctx)) {
+                            return false;
+                        }
+
+                        MavenWrapper mavenWrapper = getMavenWrapper(ctx);
+
+                        if (sourceFile instanceof Quark || sourceFile instanceof Remote) {
+                            if (equalIgnoringSeparators(sourceFile.getSourcePath(), WRAPPER_JAR_LOCATION)) {
+                                acc.addMavenWrapperJar = false;
+                                if (mavenWrapper.getWrapperDistributionType() != DistributionType.Bin) {
+                                    acc.needsWrapperUpdate = true;
+                                }
+                                return true;
+                            } else if (equalIgnoringSeparators(sourceFile.getSourcePath(), WRAPPER_DOWNLOADER_LOCATION)) {
+                                acc.addMavenWrapperDownloader = false;
+                                if (mavenWrapper.getWrapperDistributionType() != DistributionType.Source) {
+                                    acc.needsWrapperUpdate = true;
+                                }
+                                return true;
+                            }
+                        }
+
+                        if (sourceFile instanceof PlainText) {
+                            if (equalIgnoringSeparators(sourceFile.getSourcePath(), WRAPPER_BATCH_LOCATION)) {
+                                acc.addMavenBatchScript = false;
+                                return true;
+                            } else if (equalIgnoringSeparators(sourceFile.getSourcePath(), WRAPPER_SCRIPT_LOCATION)) {
+                                acc.addMavenShellScript = false;
+                                return true;
+                            }
+                        }
+
+                        return false;
+                    }
+                }
+        );
+    }
+
+    @Override
+    public Collection<SourceFile> generate(MavenWrapperState acc, ExecutionContext ctx) {
+        if (Boolean.FALSE.equals(addIfMissing)) {
+            return Collections.emptyList();
+        }
+
+        MavenWrapper mavenWrapper = getMavenWrapper(ctx);
+        if (mavenWrapper.getWrapperDistributionType() == DistributionType.Bin) {
+            if (!(acc.addMavenWrapperJar || acc.addMavenWrapperProperties || acc.addMavenBatchScript || acc.addMavenShellScript)) {
+                return Collections.emptyList();
+            }
+        } else if (mavenWrapper.getWrapperDistributionType() == DistributionType.OnlyScript) {
+            if (!(acc.addMavenWrapperProperties || acc.addMavenBatchScript || acc.addMavenShellScript)) {
+                return Collections.emptyList();
+            }
+        } else {
+            if (!(acc.addMavenWrapperDownloader || acc.addMavenWrapperProperties || acc.addMavenBatchScript || acc.addMavenShellScript)) {
+                return Collections.emptyList();
+            }
+        }
+
+        List<SourceFile> mavenWrapperFiles = new ArrayList<>();
+        ZonedDateTime now = ZonedDateTime.now();
+
+        if (acc.addMavenWrapperProperties) {
+            String mavenWrapperPropertiesText = ASF_LICENSE_HEADER +
+                    DISTRIBUTION_URL_KEY + "=" + mavenWrapper.getPropertiesFormattedDistributionUrl() + "\n" +
+                    DISTRIBUTION_SHA_256_SUM_KEY + "=" + mavenWrapper.getDistributionChecksum().getHexValue();
+            if (mavenWrapper.getWrapperDistributionType() != DistributionType.OnlyScript) {
+                mavenWrapperPropertiesText += "\n" +
+                        WRAPPER_URL_KEY + "=" + mavenWrapper.getPropertiesFormattedWrapperUrl() + "\n" +
+                        WRAPPER_SHA_256_SUM_KEY + "=" + mavenWrapper.getWrapperChecksum().getHexValue();
+            }
+            //noinspection UnusedProperty
+            Properties.File mavenWrapperProperties = new PropertiesParser().parse(mavenWrapperPropertiesText)
+                    .findFirst()
+                    .orElseThrow(() -> new IllegalArgumentException("Could not parse as properties"))
+                    .withSourcePath(WRAPPER_PROPERTIES_LOCATION);
+            mavenWrapperFiles.add(mavenWrapperProperties);
+        }
+
+        FileAttributes wrapperScriptAttributes = new FileAttributes(now, now, now, true, true, true, 1L);
+        if (acc.addMavenShellScript) {
+            String mvnwText = unixScript(mavenWrapper, ctx);
+            PlainText mvnw = PlainText.builder()
+                    .text(mvnwText)
+                    .sourcePath(WRAPPER_SCRIPT_LOCATION)
+                    .fileAttributes(wrapperScriptAttributes)
+                    .build();
+            mavenWrapperFiles.add(mvnw);
+        }
+
+        if (acc.addMavenBatchScript) {
+            String mvnwCmdText = batchScript(mavenWrapper, ctx);
+            PlainText mvnwCmd = PlainText.builder()
+                    .text(mvnwCmdText)
+                    .sourcePath(WRAPPER_BATCH_LOCATION)
+                    .fileAttributes(wrapperScriptAttributes)
+                    .build();
+            mavenWrapperFiles.add(mvnwCmd);
+        }
+
+        if (mavenWrapper.getWrapperDistributionType() == DistributionType.Bin && acc.addMavenWrapperJar) {
+            mavenWrapperFiles.add(mavenWrapper.wrapperJar());
+        } else if (mavenWrapper.getWrapperDistributionType() == DistributionType.Source && acc.addMavenWrapperDownloader) {
+            mavenWrapperFiles.add(mavenWrapper.wrapperDownloader());
+        }
+
+        return mavenWrapperFiles;
+    }
+
+    @Override
+    public TreeVisitor<?, ExecutionContext> getVisitor(MavenWrapperState acc) {
+        if (!acc.needsWrapperUpdate) {
+            return TreeVisitor.noop();
+        }
+
+        return new TreeVisitor<Tree, ExecutionContext>() {
+            @Override
+            public Tree visit(@Nullable Tree tree, ExecutionContext ctx) {
+                if (!(tree instanceof SourceFile)) {
+                    return tree;
+                }
+
+                SourceFile sourceFile = (SourceFile) tree;
+                if (acc.updatedMarker != null) {
+                    sourceFile = sourceFile.getMarkers().findFirst(BuildTool.class)
+                            .map(buildTool -> (SourceFile) tree.withMarkers(tree.getMarkers().setByType(acc.updatedMarker)))
+                            .orElse(sourceFile);
+                }
+
+                MavenWrapper mavenWrapper = getMavenWrapper(ctx);
+
+                if (sourceFile instanceof PlainText && PathUtils.matchesGlob(sourceFile.getSourcePath(), "**/" + WRAPPER_SCRIPT_LOCATION_RELATIVE_PATH)) {
+                    String mvnwText = unixScript(mavenWrapper, ctx);
+                    PlainText mvnw = (PlainText) setExecutable(sourceFile);
+                    if (!mvnwText.equals(mvnw.getText())) {
+                        mvnw = mvnw.withText(mvnwText);
+                    }
+                    return mvnw;
+                }
+                if (sourceFile instanceof PlainText && PathUtils.matchesGlob(sourceFile.getSourcePath(), "**/" + WRAPPER_BATCH_LOCATION_RELATIVE_PATH)) {
+                    String mvnwCmdText = batchScript(mavenWrapper, ctx);
+                    PlainText mvnwCmd = (PlainText) setExecutable(sourceFile);
+                    if (!mvnwCmdText.equals(mvnwCmd.getText())) {
+                        mvnwCmd = mvnwCmd.withText(mvnwCmdText);
+                    }
+                    return mvnwCmd;
+                }
+
+                if (sourceFile instanceof Properties.File && PathUtils.matchesGlob(sourceFile.getSourcePath(), "**/" + WRAPPER_PROPERTIES_LOCATION_RELATIVE_PATH)) {
+                    return new WrapperPropertiesVisitor(mavenWrapper).visitNonNull(sourceFile, ctx);
+                }
+                if (mavenWrapper.getWrapperDistributionType() == DistributionType.Bin) {
+                    if ((sourceFile instanceof Quark || sourceFile instanceof Remote) && PathUtils.matchesGlob(sourceFile.getSourcePath(), "**/" + WRAPPER_JAR_LOCATION_RELATIVE_PATH)) {
+                        return mavenWrapper.wrapperJar().withId(sourceFile.getId()).withMarkers(sourceFile.getMarkers());
+                    }
+
+                    if (PathUtils.matchesGlob(sourceFile.getSourcePath(), "**/" + WRAPPER_DOWNLOADER_LOCATION_RELATIVE_PATH)) {
+                        return null;
+                    }
+                } else if (mavenWrapper.getWrapperDistributionType() == DistributionType.Source) {
+                    if ((sourceFile instanceof Quark || sourceFile instanceof Remote) && PathUtils.matchesGlob(sourceFile.getSourcePath(), "**/" + WRAPPER_DOWNLOADER_LOCATION_RELATIVE_PATH)) {
+                        return mavenWrapper.wrapperDownloader().withId(sourceFile.getId()).withMarkers(sourceFile.getMarkers());
+                    }
+
+                    if (PathUtils.matchesGlob(sourceFile.getSourcePath(), "**/" + WRAPPER_JAR_LOCATION_RELATIVE_PATH)) {
+                        return null;
+                    }
+                } else if (PathUtils.matchesGlob(sourceFile.getSourcePath(), "**/" + WRAPPER_JAR_LOCATION_RELATIVE_PATH) ||
+                        PathUtils.matchesGlob(sourceFile.getSourcePath(), "**/" + WRAPPER_DOWNLOADER_LOCATION_RELATIVE_PATH)) {
+                    return null;
+                }
+                return sourceFile;
+            }
+        };
+    }
+
+    private static <T extends SourceFile> T setExecutable(T sourceFile) {
+        FileAttributes attributes = sourceFile.getFileAttributes();
+        if (attributes == null) {
+            ZonedDateTime now = ZonedDateTime.now();
+            return sourceFile.withFileAttributes(new FileAttributes(now, now, now, true, true, true, 1L));
+        } else if (!attributes.isExecutable()) {
+            return sourceFile.withFileAttributes(attributes.withExecutable(true));
+        }
+        return sourceFile;
+    }
+
+    private String unixScript(MavenWrapper mavenWrapper, ExecutionContext ctx) {
+        return StringUtils.readFully(mavenWrapper.mvnw().getInputStream(ctx));
+    }
+
+    private String batchScript(MavenWrapper mavenWrapper, ExecutionContext ctx) {
+        return StringUtils.readFully(mavenWrapper.mvnwCmd().getInputStream(ctx));
+    }
+
+    @AllArgsConstructor
+    private static class WrapperPropertiesVisitor extends PropertiesIsoVisitor<ExecutionContext> {
+        MavenWrapper mavenWrapper;
+
+        @Override
+        public Properties.File visitFile(Properties.File file, ExecutionContext executionContext) {
+            Properties.File p = super.visitFile(file, executionContext);
+            Checksum mavenDistributionChecksum = mavenWrapper.getDistributionChecksum();
+            if (FindProperties.find(p, DISTRIBUTION_SHA_256_SUM_KEY, null).isEmpty() && mavenDistributionChecksum != null) {
+                Properties.Value propertyValue = new Properties.Value(Tree.randomId(), "", Markers.EMPTY, mavenDistributionChecksum.getHexValue());
+                Properties.Entry entry = new Properties.Entry(Tree.randomId(), "\n", Markers.EMPTY, DISTRIBUTION_SHA_256_SUM_KEY, "", Properties.Entry.Delimiter.EQUALS, propertyValue);
+                p = p.withContent(ListUtils.concat(p.getContent(), entry));
+            }
+            if (mavenWrapper.getWrapperDistributionType() != DistributionType.OnlyScript) {
+                Checksum wrapperJarChecksum = mavenWrapper.getWrapperChecksum();
+                if (FindProperties.find(p, WRAPPER_SHA_256_SUM_KEY, null).isEmpty() && wrapperJarChecksum != null) {
+                    Properties.Value propertyValue = new Properties.Value(Tree.randomId(), "", Markers.EMPTY, wrapperJarChecksum.getHexValue());
+                    Properties.Entry entry = new Properties.Entry(Tree.randomId(), "\n", Markers.EMPTY, WRAPPER_SHA_256_SUM_KEY, "", Properties.Entry.Delimiter.EQUALS, propertyValue);
+                    p = p.withContent(ListUtils.concat(p.getContent(), entry));
+                }
+            }
+            return p;
+        }
+
+        @Override
+        @Nullable
+        public Properties.Entry visitEntry(Properties.Entry entry, ExecutionContext executionContext) {
+            if (DISTRIBUTION_URL_KEY.equals(entry.getKey())) {
+                Properties.Value value = entry.getValue();
+                if (!mavenWrapper.getPropertiesFormattedDistributionUrl().equals(value.getText())) {
+                    return entry.withValue(value.withText(mavenWrapper.getPropertiesFormattedDistributionUrl()));
+                }
+            } else if (DISTRIBUTION_SHA_256_SUM_KEY.equals(entry.getKey())) {
+                Properties.Value value = entry.getValue();
+                Checksum mavenDistributionChecksum = mavenWrapper.getDistributionChecksum();
+                if (mavenDistributionChecksum != null && !mavenDistributionChecksum.getHexValue().equals(value.getText())) {
+                    return entry.withValue(value.withText(mavenDistributionChecksum.getHexValue()));
+                }
+            } else if (WRAPPER_URL_KEY.equals(entry.getKey())) {
+                if (mavenWrapper.getWrapperDistributionType() != DistributionType.OnlyScript) {
+                    Properties.Value value = entry.getValue();
+                    if (!mavenWrapper.getPropertiesFormattedWrapperUrl().equals(value.getText())) {
+                        return entry.withValue(value.withText(mavenWrapper.getPropertiesFormattedWrapperUrl()));
+                    }
+                } else {
+                    return null;
+                }
+            } else if (WRAPPER_SHA_256_SUM_KEY.equals(entry.getKey())) {
+                if (mavenWrapper.getWrapperDistributionType() != DistributionType.OnlyScript) {
+                    Properties.Value value = entry.getValue();
+                    Checksum wrapperJarChecksum = mavenWrapper.getWrapperChecksum();
+                    if (wrapperJarChecksum != null && !wrapperJarChecksum.getHexValue().equals(value.getText())) {
+                        return entry.withValue(value.withText(wrapperJarChecksum.getHexValue()));
+                    }
+                } else {
+                    return null;
+                }
+            }
+            return entry;
+        }
+    }
+}
diff --git a/rewrite-maven/src/main/java/org/openrewrite/maven/utilities/MavenWrapper.java b/rewrite-maven/src/main/java/org/openrewrite/maven/utilities/MavenWrapper.java
new file mode 100644
index 00000000000..555f6e1d50d
--- /dev/null
+++ b/rewrite-maven/src/main/java/org/openrewrite/maven/utilities/MavenWrapper.java
@@ -0,0 +1,216 @@
+/*
+ * Copyright 2023 the original author or authors.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * https://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.openrewrite.maven.utilities;
+
+import lombok.Value;
+import org.openrewrite.Checksum;
+import org.openrewrite.ExecutionContext;
+import org.openrewrite.internal.lang.Nullable;
+import org.openrewrite.maven.MavenDownloadingException;
+import org.openrewrite.maven.internal.MavenPomDownloader;
+import org.openrewrite.maven.tree.GroupArtifact;
+import org.openrewrite.maven.tree.MavenMetadata;
+import org.openrewrite.maven.tree.MavenRepository;
+import org.openrewrite.remote.Remote;
+import org.openrewrite.semver.LatestRelease;
+import org.openrewrite.semver.Semver;
+import org.openrewrite.semver.VersionComparator;
+
+import java.net.URI;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+import static java.util.Objects.requireNonNull;
+
+@Value
+public class MavenWrapper {
+    public static final String ASF_LICENSE_HEADER = "# Licensed to the Apache Software Foundation (ASF) under one\n" +
+            "# or more contributor license agreements.  See the NOTICE file\n" +
+            "# distributed with this work for additional information\n" +
+            "# regarding copyright ownership.  The ASF licenses this file\n" +
+            "# to you under the Apache License, Version 2.0 (the\n" +
+            "# \"License\"); you may not use this file except in compliance\n" +
+            "# with the License.  You may obtain a copy of the License at\n" +
+            "# \n" +
+            "#   http://www.apache.org/licenses/LICENSE-2.0\n" +
+            "# \n" +
+            "# Unless required by applicable law or agreed to in writing,\n" +
+            "# software distributed under the License is distributed on an\n" +
+            "# \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY\n" +
+            "# KIND, either express or implied.  See the License for the\n" +
+            "# specific language governing permissions and limitations\n" +
+            "# under the License.\n";
+    public static final String WRAPPER_DOWNLOADER_LOCATION_RELATIVE_PATH = ".mvn/wrapper/MavenWrapperDownloader.java";
+    public static final String WRAPPER_JAR_LOCATION_RELATIVE_PATH = ".mvn/wrapper/maven-wrapper.jar";
+    public static final String WRAPPER_PROPERTIES_LOCATION_RELATIVE_PATH = ".mvn/wrapper/maven-wrapper.properties";
+    public static final String WRAPPER_SCRIPT_LOCATION_RELATIVE_PATH = "mvnw";
+    public static final String WRAPPER_BATCH_LOCATION_RELATIVE_PATH = "mvnw.cmd";
+
+    public static final Path WRAPPER_DOWNLOADER_LOCATION = Paths.get(WRAPPER_DOWNLOADER_LOCATION_RELATIVE_PATH);
+    public static final Path WRAPPER_JAR_LOCATION = Paths.get(WRAPPER_JAR_LOCATION_RELATIVE_PATH);
+    public static final Path WRAPPER_PROPERTIES_LOCATION = Paths.get(WRAPPER_PROPERTIES_LOCATION_RELATIVE_PATH);
+    public static final Path WRAPPER_SCRIPT_LOCATION = Paths.get(WRAPPER_SCRIPT_LOCATION_RELATIVE_PATH);
+    public static final Path WRAPPER_BATCH_LOCATION = Paths.get(WRAPPER_BATCH_LOCATION_RELATIVE_PATH);
+
+    String wrapperVersion;
+    String wrapperUri;
+    Checksum wrapperChecksum;
+    String wrapperDistributionUri;
+    DistributionType wrapperDistributionType;
+    String distributionVersion;
+    String distributionUri;
+    Checksum distributionChecksum;
+
+    public static MavenWrapper create(
+            @Nullable String wrapperVersion,
+            @Nullable String wrapperDistributionTypeName,
+            @Nullable String distributionVersion,
+            @Nullable String repositoryUrl,
+            ExecutionContext ctx
+    ) {
+        DistributionType wrapperDistributionType = Arrays.stream(DistributionType.values())
+                .filter(dt -> dt.classifier.equalsIgnoreCase(wrapperDistributionTypeName))
+                .findAny()
+                .orElse(DistributionType.Bin);
+
+        MavenPomDownloader pomDownloader = new MavenPomDownloader(Collections.emptyMap(), ctx, null, null);
+
+        VersionComparator wrapperVersionComparator = (wrapperVersion == null) ?
+                new LatestRelease(null) :
+                requireNonNull(Semver.validate(wrapperVersion, null).getValue());
+        VersionComparator distributionVersionComparator = (distributionVersion == null) ?
+                new LatestRelease(null) :
+                requireNonNull(Semver.validate(distributionVersion, null).getValue());
+
+        MavenRepository repository = repositoryUrl == null ?
+                MavenRepository.MAVEN_CENTRAL :
+                MavenRepository.builder()
+                        .uri(repositoryUrl)
+                        .releases(true)
+                        .snapshots(true)
+                        .build();
+        List<MavenRepository> repositories = Collections.singletonList(repository);
+        try {
+            GroupArtifact wrapperDistributionGroupArtifact = new GroupArtifact("org.apache.maven.wrapper", "maven-wrapper-distribution");
+            MavenMetadata wrapperMetadata = pomDownloader.downloadMetadata(wrapperDistributionGroupArtifact, null, repositories);
+            String resolvedWrapperVersion = wrapperMetadata.getVersioning()
+                    .getVersions()
+                    .stream()
+                    .filter(v -> wrapperVersionComparator.isValid(null, v))
+                    .max((v1, v2) -> wrapperVersionComparator.compare(null, v1, v2))
+                    .orElseThrow(() -> new IllegalStateException("Expected to find at least one Maven wrapper version to select from."));
+            String resolvedWrapperUri = getDownloadUriFor(repository, new GroupArtifact("org.apache.maven.wrapper", "maven-wrapper"), resolvedWrapperVersion, null, "jar");
+            String resolvedWrapperDistributionUri = getDownloadUriFor(repository, wrapperDistributionGroupArtifact, resolvedWrapperVersion, wrapperDistributionType.classifier, "zip");
+
+            GroupArtifact distributionGroupArtifact = new GroupArtifact("org.apache.maven", "apache-maven");
+            MavenMetadata distributionMetadata = pomDownloader.downloadMetadata(distributionGroupArtifact, null, repositories);
+            String resolvedDistributionVersion = distributionMetadata.getVersioning()
+                    .getVersions()
+                    .stream()
+                    .filter(v -> distributionVersionComparator.isValid(null, v))
+                    .max((v1, v2) -> distributionVersionComparator.compare(null, v1, v2))
+                    .orElseThrow(() -> new IllegalStateException("Expected to find at least one Maven distribution version to select from."));
+            String resolvedDistributionUri = getDownloadUriFor(repository, distributionGroupArtifact, resolvedDistributionVersion, "bin", "zip");
+
+            Remote wrapperJar = (Remote) Checksum.sha256(Remote.builder(
+                    WRAPPER_JAR_LOCATION,
+                    URI.create(resolvedWrapperUri)
+            ).build());
+
+            Remote mavenDistribution = (Remote) Checksum.sha256(Remote.builder(
+                    Paths.get(""),
+                    URI.create(resolvedDistributionUri)
+            ).build());
+
+            return new MavenWrapper(
+                    resolvedWrapperVersion,
+                    resolvedWrapperUri,
+                    wrapperJar.getChecksum(),
+                    resolvedWrapperDistributionUri,
+                    wrapperDistributionType,
+                    resolvedDistributionVersion,
+                    resolvedDistributionUri,
+                    mavenDistribution.getChecksum()
+            );
+        } catch (MavenDownloadingException e) {
+            throw new RuntimeException("Could not get Maven versions at: " + repository.getUri(), e);
+        }
+    }
+
+    public String getPropertiesFormattedWrapperUrl() {
+        return wrapperUri.replaceAll("(?<!\\\\)://", "\\\\://");
+    }
+
+    public String getPropertiesFormattedDistributionUrl() {
+        return distributionUri.replaceAll("(?<!\\\\)://", "\\\\://");
+    }
+
+    public Remote wrapperJar() {
+        return Remote.builder(
+                WRAPPER_JAR_LOCATION,
+                URI.create(wrapperUri)
+        ).build();
+    }
+
+    public Remote wrapperDownloader() {
+        return Remote.builder(
+                WRAPPER_DOWNLOADER_LOCATION,
+                URI.create(wrapperDistributionUri)
+        ).build(".mvn/wrapper/MavenWrapperDownloader.java");
+    }
+
+    public Remote mvnw() {
+        return Remote.builder(
+                WRAPPER_SCRIPT_LOCATION,
+                URI.create(wrapperDistributionUri)
+        ).build("mvnw");
+    }
+
+    public Remote mvnwCmd() {
+        return Remote.builder(
+                WRAPPER_BATCH_LOCATION,
+                URI.create(wrapperDistributionUri)
+        ).build("mvnw.cmd");
+    }
+
+    private static String getDownloadUriFor(MavenRepository repository, GroupArtifact ga, String version, @Nullable String classifier, String extension) {
+        return repository.getUri() +
+                "/" +
+                ga.getGroupId().replace(".", "/") +
+                "/" +
+                ga.getArtifactId() +
+                "/" +
+                version +
+                "/" +
+                ga.getArtifactId() + "-" + version + (classifier == null ? "" : "-" + classifier) + "." + extension;
+    }
+
+    public enum DistributionType {
+        Bin("bin"),
+        OnlyScript("only-script"),
+        Script("script"),
+        Source("source");
+
+        private final String classifier;
+
+        DistributionType(String classifier) {
+            this.classifier = classifier;
+        }
+    }
+}
diff --git a/rewrite-maven/src/test/java/org/openrewrite/maven/UpdateMavenWrapperTest.java b/rewrite-maven/src/test/java/org/openrewrite/maven/UpdateMavenWrapperTest.java
new file mode 100644
index 00000000000..782bfd9570d
--- /dev/null
+++ b/rewrite-maven/src/test/java/org/openrewrite/maven/UpdateMavenWrapperTest.java
@@ -0,0 +1,418 @@
+/*
+ * Copyright 2023 the original author or authors.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * https://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.openrewrite.maven;
+
+import org.intellij.lang.annotations.Language;
+import org.junit.jupiter.api.Test;
+import org.openrewrite.*;
+import org.openrewrite.internal.StringUtils;
+import org.openrewrite.internal.lang.Nullable;
+import org.openrewrite.ipc.http.HttpUrlConnectionSender;
+import org.openrewrite.marker.BuildTool;
+import org.openrewrite.maven.utilities.MavenWrapper;
+import org.openrewrite.remote.Remote;
+import org.openrewrite.test.RecipeSpec;
+import org.openrewrite.test.RewriteTest;
+import org.openrewrite.test.SourceSpecs;
+import org.openrewrite.text.PlainText;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.UncheckedIOException;
+import java.net.URI;
+import java.nio.file.*;
+import java.time.Duration;
+import java.util.NoSuchElementException;
+import java.util.Objects;
+import java.util.function.UnaryOperator;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.openrewrite.maven.utilities.MavenWrapper.*;
+import static org.openrewrite.properties.Assertions.properties;
+import static org.openrewrite.test.SourceSpecs.*;
+
+class UpdateMavenWrapperTest implements RewriteTest {
+    private final UnaryOperator<@Nullable String> notEmpty = actual -> {
+        assertThat(actual).isNotNull();
+        return actual + "\n";
+    };
+
+    // Maven wrapper script text for 3.1.1
+    private static final String MVNW_TEXT = StringUtils.readFully(UpdateMavenWrapperTest.class.getResourceAsStream("/mvnw"));
+    private static final String MVNW_CMD_TEXT = StringUtils.readFully(UpdateMavenWrapperTest.class.getResourceAsStream("/mvnw.cmd"));
+
+    private final SourceSpecs mvnw = text("", spec -> spec.path(WRAPPER_SCRIPT_LOCATION).after(notEmpty));
+    private final SourceSpecs mvnwCmd = text("", spec -> spec.path(WRAPPER_BATCH_LOCATION).after(notEmpty));
+    private final SourceSpecs mvnWrapperJarQuark = other("", spec -> spec.path(WRAPPER_JAR_LOCATION).after(notEmpty));
+
+    @Override
+    public void defaults(RecipeSpec spec) {
+        spec.recipe(new UpdateMavenWrapper("3.1.x", null, "3.8.x", null, null));
+    }
+
+    @Test
+    @DocumentExample("Add a new Maven wrapper")
+    void addMavenWrapper() {
+        rewriteRun(
+          spec -> spec.afterRecipe(run -> {
+              assertThat(run.getChangeset().getAllResults()).hasSize(4);
+
+              var mvnw = result(run, PlainText.class, "mvnw");
+              assertThat(mvnw.getSourcePath()).isEqualTo(WRAPPER_SCRIPT_LOCATION);
+              assertThat(mvnw.getText()).isEqualTo(MVNW_TEXT);
+              assertThat(mvnw.getFileAttributes()).isNotNull();
+              assertThat(mvnw.getFileAttributes().isReadable()).isTrue();
+              assertThat(mvnw.getFileAttributes().isWritable()).isTrue();
+
+              var mvnwCmd = result(run, PlainText.class, "mvnw.cmd");
+              assertThat(mvnwCmd.getSourcePath()).isEqualTo(WRAPPER_BATCH_LOCATION);
+              assertThat(mvnwCmd.getText()).isEqualTo(MVNW_CMD_TEXT);
+
+              var mavenWrapperJar = result(run, Remote.class, "maven-wrapper.jar");
+              assertThat(mavenWrapperJar.getSourcePath()).isEqualTo(WRAPPER_JAR_LOCATION);
+              assertThat(mavenWrapperJar.getUri()).isEqualTo(URI.create("https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.1/maven-wrapper-3.1.1.jar"));
+              assertThat(isValidWrapperJar(mavenWrapperJar)).as("Wrapper jar is not valid").isTrue();
+          }),
+          properties(
+            null,
+            withLicenseHeader("""
+              distributionUrl=https\\://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.8/apache-maven-3.8.8-bin.zip
+              distributionSha256Sum=2e181515ce8ae14b7a904c40bb4794831f5fd1d9641107a13b916af15af4001a
+              wrapperUrl=https\\://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.1/maven-wrapper-3.1.1.jar
+              wrapperSha256Sum=ff7f21f2ef81723377e3d42d06661c4e3af60cf4bdfb7579ac8f22051399942d
+              """),
+            spec -> spec.path(".mvn/wrapper/maven-wrapper.properties")
+          )
+        );
+    }
+
+    @Test
+    @DocumentExample("Update existing Maven wrapper")
+    void updateWrapper() {
+        rewriteRun(
+          spec -> spec.allSources(source -> source.markers(new BuildTool(Tree.randomId(), BuildTool.Type.Maven, "3.8.0")))
+            .afterRecipe(run -> {
+                var mvnw = result(run, PlainText.class, "mvnw");
+                assertThat(mvnw.getSourcePath()).isEqualTo(WRAPPER_SCRIPT_LOCATION);
+                assertThat(mvnw.getText()).isEqualTo(MVNW_TEXT);
+                assertThat(mvnw.getFileAttributes()).isNotNull();
+                assertThat(mvnw.getFileAttributes().isReadable()).isTrue();
+                assertThat(mvnw.getFileAttributes().isWritable()).isTrue();
+
+                var mvnwCmd = result(run, PlainText.class, "mvnw.cmd");
+                assertThat(mvnwCmd.getSourcePath()).isEqualTo(WRAPPER_BATCH_LOCATION);
+                assertThat(mvnwCmd.getText()).isEqualTo(MVNW_CMD_TEXT);
+
+                var mavenWrapperJar = result(run, Remote.class, "maven-wrapper.jar");
+                assertThat(mavenWrapperJar.getSourcePath()).isEqualTo(WRAPPER_JAR_LOCATION);
+                assertThat(mavenWrapperJar.getUri()).isEqualTo(URI.create("https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.1/maven-wrapper-3.1.1.jar"));
+                assertThat(isValidWrapperJar(mavenWrapperJar)).as("Wrapper jar is not valid").isTrue();
+            }),
+          properties(
+            withLicenseHeader("""
+              distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.0/apache-maven-3.8.0-bin.zip
+              wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar
+              """),
+            withLicenseHeader("""
+              distributionUrl=https\\://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.8/apache-maven-3.8.8-bin.zip
+              wrapperUrl=https\\://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.1/maven-wrapper-3.1.1.jar
+              distributionSha256Sum=2e181515ce8ae14b7a904c40bb4794831f5fd1d9641107a13b916af15af4001a
+              wrapperSha256Sum=ff7f21f2ef81723377e3d42d06661c4e3af60cf4bdfb7579ac8f22051399942d
+              """),
+            spec -> spec.path(".mvn/wrapper/maven-wrapper.properties")
+              .afterRecipe(mavenWrapperProperties ->
+                assertThat(mavenWrapperProperties.getMarkers().findFirst(BuildTool.class)).hasValueSatisfying(buildTool -> {
+                    assertThat(buildTool.getType()).isEqualTo(BuildTool.Type.Maven);
+                    assertThat(buildTool.getVersion()).isEqualTo("3.8.8");
+                }))
+          ),
+          mvnw,
+          mvnwCmd,
+          mvnWrapperJarQuark
+        );
+    }
+
+    @Test
+    void updateVersionUsingSourceDistribution() {
+        rewriteRun(
+          spec -> spec.recipe(new UpdateMavenWrapper("3.1.x", "source", "3.8.x", null, null))
+            .allSources(source -> source.markers(new BuildTool(Tree.randomId(), BuildTool.Type.Maven, "3.8.0")))
+            .afterRecipe(run -> {
+                var mvnw = result(run, PlainText.class, "mvnw");
+                assertThat(mvnw.getText()).isNotBlank();
+
+                var mvnwCmd = result(run, PlainText.class, "mvnw.cmd");
+                assertThat(mvnwCmd.getText()).isNotBlank();
+
+                assertThatThrownBy(() -> result(run, SourceFile.class, "maven-wrapper.jar"))
+                  .isInstanceOf(NoSuchElementException.class)
+                  .hasMessage("No value present");
+
+                var mvnwDownloaderJava = result(run, Remote.class, "MavenWrapperDownloader.java");
+                assertThat(mvnwDownloaderJava.getSourcePath()).isEqualTo(WRAPPER_DOWNLOADER_LOCATION);
+                assertThat(mvnwDownloaderJava.getUri()).isEqualTo(URI.create("https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper-distribution/3.1.1/maven-wrapper-distribution-3.1.1-source.zip"));
+            }),
+          properties(
+            withLicenseHeader("""
+              distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.0/apache-maven-3.8.0-bin.zip
+              wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar
+              """),
+            withLicenseHeader("""
+              distributionUrl=https\\://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.8/apache-maven-3.8.8-bin.zip
+              wrapperUrl=https\\://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.1/maven-wrapper-3.1.1.jar
+              distributionSha256Sum=2e181515ce8ae14b7a904c40bb4794831f5fd1d9641107a13b916af15af4001a
+              wrapperSha256Sum=ff7f21f2ef81723377e3d42d06661c4e3af60cf4bdfb7579ac8f22051399942d
+              """),
+            spec -> spec.path(".mvn/wrapper/maven-wrapper.properties")
+          ),
+          mvnw,
+          mvnwCmd,
+          other(
+            "",
+            null,
+            spec -> spec.path(".mvn/wrapper/maven-wrapper.jar")
+          )
+        );
+    }
+
+    @Test
+    void updateVersionUsingScriptDistribution() {
+        rewriteRun(
+          spec -> spec.recipe(new UpdateMavenWrapper("3.1.x", "script", "3.8.x", null, null))
+            .allSources(source -> source.markers(new BuildTool(Tree.randomId(), BuildTool.Type.Maven, "3.8.0")))
+            .afterRecipe(run -> {
+                var mvnw = result(run, PlainText.class, "mvnw");
+                assertThat(mvnw.getText()).isNotBlank();
+
+                var mvnwCmd = result(run, PlainText.class, "mvnw.cmd");
+                assertThat(mvnwCmd.getText()).isNotBlank();
+
+                assertThatThrownBy(() -> result(run, SourceFile.class, "maven-wrapper.jar"))
+                  .isInstanceOf(NoSuchElementException.class)
+                  .hasMessage("No value present");
+
+                assertThatThrownBy(() -> result(run, Remote.class, "MavenWrapperDownloader.java"))
+                  .isInstanceOf(NoSuchElementException.class)
+                  .hasMessage("No value present");
+            }),
+          properties(
+            withLicenseHeader("""
+              distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.0/apache-maven-3.8.0-bin.zip
+              wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar
+              """),
+            withLicenseHeader("""
+              distributionUrl=https\\://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.8/apache-maven-3.8.8-bin.zip
+              wrapperUrl=https\\://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.1/maven-wrapper-3.1.1.jar
+              distributionSha256Sum=2e181515ce8ae14b7a904c40bb4794831f5fd1d9641107a13b916af15af4001a
+              wrapperSha256Sum=ff7f21f2ef81723377e3d42d06661c4e3af60cf4bdfb7579ac8f22051399942d
+              """),
+            spec -> spec.path(".mvn/wrapper/maven-wrapper.properties")
+          ),
+          mvnw,
+          mvnwCmd,
+          other(
+            "",
+            null,
+            spec -> spec.path(".mvn/wrapper/maven-wrapper.jar")
+          )
+        );
+    }
+
+    @Test
+    void updateVersionUsingOnlyScriptDistribution() {
+        rewriteRun(
+          spec -> spec.recipe(new UpdateMavenWrapper(null, "only-script", "3.8.x", null, null))
+            .allSources(source -> source.markers(new BuildTool(Tree.randomId(), BuildTool.Type.Maven, "3.8.0")))
+            .afterRecipe(run -> {
+                var mvnw = result(run, PlainText.class, "mvnw");
+                assertThat(mvnw.getText()).isNotBlank();
+
+                var mvnwCmd = result(run, PlainText.class, "mvnw.cmd");
+                assertThat(mvnwCmd.getText()).isNotBlank();
+
+                assertThatThrownBy(() -> result(run, Remote.class, "maven-wrapper.jar"))
+                  .isInstanceOf(NoSuchElementException.class)
+                  .hasMessage("No value present");
+
+                assertThatThrownBy(() -> result(run, Remote.class, "MavenWrapperDownloader.java"))
+                  .isInstanceOf(NoSuchElementException.class)
+                  .hasMessage("No value present");
+            }),
+          properties(
+            withLicenseHeader("""
+              distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.0/apache-maven-3.8.0-bin.zip
+              """),
+            withLicenseHeader("""
+              distributionUrl=https\\://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.8/apache-maven-3.8.8-bin.zip
+              distributionSha256Sum=2e181515ce8ae14b7a904c40bb4794831f5fd1d9641107a13b916af15af4001a
+              """),
+            spec -> spec.path(".mvn/wrapper/maven-wrapper.properties")
+          ),
+          mvnw,
+          mvnwCmd,
+          other(
+            "",
+            null,
+            spec -> spec.path(".mvn/wrapper/maven-wrapper.jar")
+          )
+        );
+    }
+
+    @Test
+    void dontAddMissingWrapper() {
+        rewriteRun(
+          spec -> spec.recipe(new UpdateMavenWrapper("3.1.x", null, "3.8.x", null, Boolean.FALSE))
+            .allSources(source -> source.markers(new BuildTool(Tree.randomId(), BuildTool.Type.Maven, "3.8.0")))
+            .afterRecipe(run -> assertThat(run.getChangeset().getAllResults()).isEmpty())
+        );
+    }
+
+    @Test
+    void updateMultipleWrappers() {
+        rewriteRun(
+          spec -> spec.recipe(new UpdateMavenWrapper("3.1.x", null, "3.8.x", null, Boolean.FALSE))
+            .allSources(source -> source.markers(new BuildTool(Tree.randomId(), BuildTool.Type.Maven, "3.8.0"))),
+          dir("example1",
+            properties(
+              withLicenseHeader("""
+                distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.0/apache-maven-3.8.0-bin.zip
+                wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar
+                """),
+              withLicenseHeader("""
+                distributionUrl=https\\://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.8/apache-maven-3.8.8-bin.zip
+                wrapperUrl=https\\://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.1/maven-wrapper-3.1.1.jar
+                distributionSha256Sum=2e181515ce8ae14b7a904c40bb4794831f5fd1d9641107a13b916af15af4001a
+                wrapperSha256Sum=ff7f21f2ef81723377e3d42d06661c4e3af60cf4bdfb7579ac8f22051399942d
+                """),
+              spec -> spec.path(".mvn/wrapper/maven-wrapper.properties")
+            ),
+            mvnw,
+            mvnwCmd,
+            mvnWrapperJarQuark
+          ),
+          dir("example2",
+            properties(
+              withLicenseHeader("""
+                distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.0/apache-maven-3.8.0-bin.zip
+                wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar
+                """),
+              withLicenseHeader("""
+                distributionUrl=https\\://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.8/apache-maven-3.8.8-bin.zip
+                wrapperUrl=https\\://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.1/maven-wrapper-3.1.1.jar
+                distributionSha256Sum=2e181515ce8ae14b7a904c40bb4794831f5fd1d9641107a13b916af15af4001a
+                wrapperSha256Sum=ff7f21f2ef81723377e3d42d06661c4e3af60cf4bdfb7579ac8f22051399942d
+                """),
+              spec -> spec.path(".mvn/wrapper/maven-wrapper.properties")
+            ),
+            mvnw,
+            mvnwCmd,
+            mvnWrapperJarQuark
+          )
+        );
+    }
+
+    @Test
+    void doNotDowngrade() {
+        rewriteRun(
+          spec -> spec.allSources(source -> source.markers(new BuildTool(Tree.randomId(), BuildTool.Type.Maven, "3.9.0"))),
+          properties(
+            withLicenseHeader("""
+              distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.0/apache-maven-3.9.0-bin.zip
+              wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.2.0/maven-wrapper-3.2.0.jar
+              """),
+            spec -> spec.path(".mvn/wrapper/maven-wrapper.properties")
+          ),
+          text("", spec -> spec.path("mvnw")),
+          text("", spec -> spec.path("mvnw.cmd")),
+          other("", spec -> spec.path(".mvn/wrapper/maven-wrapper.jar"))
+        );
+    }
+
+    @Test
+    void allowUpdatingDistributionTypeWhenSameVersion() {
+        rewriteRun(
+          spec -> spec.recipe(new UpdateMavenWrapper("3.1.x", "script", "3.8.x", null, null))
+            .allSources(source -> source.markers(new BuildTool(Tree.randomId(), BuildTool.Type.Maven, "3.8.8")))
+            .afterRecipe(run -> {
+                var mvnw = result(run, PlainText.class, "mvnw");
+                assertThat(mvnw.getText()).isNotBlank();
+
+                var mvnwCmd = result(run, PlainText.class, "mvnw.cmd");
+                assertThat(mvnwCmd.getText()).isNotBlank();
+
+                assertThatThrownBy(() -> result(run, SourceFile.class, "maven-wrapper.jar"))
+                  .isInstanceOf(NoSuchElementException.class)
+                  .hasMessage("No value present");
+
+                assertThatThrownBy(() -> result(run, SourceFile.class, "MavenWrapperDownloader.java"))
+                  .isInstanceOf(NoSuchElementException.class)
+                  .hasMessage("No value present");
+            }),
+          properties(
+            withLicenseHeader("""
+              distributionUrl=https\\://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.8/apache-maven-3.8.8-bin.zip
+              wrapperUrl=https\\://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.1/maven-wrapper-3.1.1.jar
+              distributionSha256Sum=2e181515ce8ae14b7a904c40bb4794831f5fd1d9641107a13b916af15af4001a
+              wrapperSha256Sum=ff7f21f2ef81723377e3d42d06661c4e3af60cf4bdfb7579ac8f22051399942d
+              """),
+            spec -> spec.path(".mvn/wrapper/maven-wrapper.properties")
+          ),
+          mvnw,
+          mvnwCmd,
+          other(
+            "",
+            null,
+            spec -> spec.path(".mvn/wrapper/maven-wrapper.jar")
+          ),
+          other(
+            "",
+            null,
+            spec -> spec.path(".mvn/wrapper/MavenWrapperDownloader.java")
+          )
+        );
+    }
+
+    private String withLicenseHeader(@Language("properties") String original) {
+        return MavenWrapper.ASF_LICENSE_HEADER + original;
+    }
+
+    private <S extends SourceFile> S result(RecipeRun run, Class<S> clazz, String endsWith) {
+        return run.getChangeset().getAllResults().stream()
+          .map(Result::getAfter)
+          .filter(Objects::nonNull)
+          .filter(r -> r.getSourcePath().endsWith(endsWith))
+          .findFirst()
+          .map(clazz::cast)
+          .orElseThrow();
+    }
+
+    private boolean isValidWrapperJar(Remote gradleWrapperJar) {
+        try {
+            Path testWrapperJar = Files.createTempFile("maven-wrapper", "jar");
+            ExecutionContext ctx = new InMemoryExecutionContext();
+            HttpSenderExecutionContextView.view(ctx).setHttpSender(new HttpUrlConnectionSender(Duration.ofSeconds(5), Duration.ofSeconds(5)));
+            try (InputStream is = gradleWrapperJar.getInputStream(ctx)) {
+                Files.copy(is, testWrapperJar, StandardCopyOption.REPLACE_EXISTING);
+                try (FileSystem fs = FileSystems.newFileSystem(testWrapperJar)) {
+                    return Files.exists(fs.getPath("org/apache/maven/wrapper/MavenWrapperMain.class"));
+                }
+            }
+        } catch (IOException e) {
+            throw new UncheckedIOException(e);
+        }
+    }
+}
diff --git a/rewrite-maven/src/test/resources/mvnw b/rewrite-maven/src/test/resources/mvnw
new file mode 100644
index 00000000000..b7f064624f8
--- /dev/null
+++ b/rewrite-maven/src/test/resources/mvnw
@@ -0,0 +1,287 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Apache Maven Wrapper startup batch script, version 3.1.1
+#
+# Required ENV vars:
+# ------------------
+#   JAVA_HOME - location of a JDK home dir
+#
+# Optional ENV vars
+# -----------------
+#   MAVEN_OPTS - parameters passed to the Java VM when running Maven
+#     e.g. to debug Maven itself, use
+#       set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+#   MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+# ----------------------------------------------------------------------------
+
+if [ -z "$MAVEN_SKIP_RC" ] ; then
+
+  if [ -f /usr/local/etc/mavenrc ] ; then
+    . /usr/local/etc/mavenrc
+  fi
+
+  if [ -f /etc/mavenrc ] ; then
+    . /etc/mavenrc
+  fi
+
+  if [ -f "$HOME/.mavenrc" ] ; then
+    . "$HOME/.mavenrc"
+  fi
+
+fi
+
+# OS specific support.  $var _must_ be set to either true or false.
+cygwin=false;
+darwin=false;
+mingw=false
+case "`uname`" in
+  CYGWIN*) cygwin=true ;;
+  MINGW*) mingw=true;;
+  Darwin*) darwin=true
+    # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
+    # See https://developer.apple.com/library/mac/qa/qa1170/_index.html
+    if [ -z "$JAVA_HOME" ]; then
+      if [ -x "/usr/libexec/java_home" ]; then
+        JAVA_HOME="`/usr/libexec/java_home`"; export JAVA_HOME
+      else
+        JAVA_HOME="/Library/Java/Home"; export JAVA_HOME
+      fi
+    fi
+    ;;
+esac
+
+if [ -z "$JAVA_HOME" ] ; then
+  if [ -r /etc/gentoo-release ] ; then
+    JAVA_HOME=`java-config --jre-home`
+  fi
+fi
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched
+if $cygwin ; then
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
+fi
+
+# For Mingw, ensure paths are in UNIX format before anything is touched
+if $mingw ; then
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
+fi
+
+if [ -z "$JAVA_HOME" ]; then
+  javaExecutable="`which javac`"
+  if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then
+    # readlink(1) is not available as standard on Solaris 10.
+    readLink=`which readlink`
+    if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then
+      if $darwin ; then
+        javaHome="`dirname \"$javaExecutable\"`"
+        javaExecutable="`cd \"$javaHome\" && pwd -P`/javac"
+      else
+        javaExecutable="`readlink -f \"$javaExecutable\"`"
+      fi
+      javaHome="`dirname \"$javaExecutable\"`"
+      javaHome=`expr "$javaHome" : '\(.*\)/bin'`
+      JAVA_HOME="$javaHome"
+      export JAVA_HOME
+    fi
+  fi
+fi
+
+if [ -z "$JAVACMD" ] ; then
+  if [ -n "$JAVA_HOME"  ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+      # IBM's JDK on AIX uses strange locations for the executables
+      JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+      JAVACMD="$JAVA_HOME/bin/java"
+    fi
+  else
+    JAVACMD="`\\unset -f command; \\command -v java`"
+  fi
+fi
+
+if [ ! -x "$JAVACMD" ] ; then
+  echo "Error: JAVA_HOME is not defined correctly." >&2
+  echo "  We cannot execute $JAVACMD" >&2
+  exit 1
+fi
+
+if [ -z "$JAVA_HOME" ] ; then
+  echo "Warning: JAVA_HOME environment variable is not set."
+fi
+
+# traverses directory structure from process work directory to filesystem root
+# first directory with .mvn subdirectory is considered project base directory
+find_maven_basedir() {
+  if [ -z "$1" ]
+  then
+    echo "Path not specified to find_maven_basedir"
+    return 1
+  fi
+
+  basedir="$1"
+  wdir="$1"
+  while [ "$wdir" != '/' ] ; do
+    if [ -d "$wdir"/.mvn ] ; then
+      basedir=$wdir
+      break
+    fi
+    # workaround for JBEAP-8937 (on Solaris 10/Sparc)
+    if [ -d "${wdir}" ]; then
+      wdir=`cd "$wdir/.."; pwd`
+    fi
+    # end of workaround
+  done
+  printf '%s' "$(cd "$basedir"; pwd)"
+}
+
+# concatenates all lines of a file
+concat_lines() {
+  if [ -f "$1" ]; then
+    echo "$(tr -s '\n' ' ' < "$1")"
+  fi
+}
+
+BASE_DIR=$(find_maven_basedir "$(dirname $0)")
+if [ -z "$BASE_DIR" ]; then
+  exit 1;
+fi
+
+MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}; export MAVEN_PROJECTBASEDIR
+if [ "$MVNW_VERBOSE" = true ]; then
+  echo $MAVEN_PROJECTBASEDIR
+fi
+
+##########################################################################################
+# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+# This allows using the maven wrapper in projects that prohibit checking in binary data.
+##########################################################################################
+if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Found .mvn/wrapper/maven-wrapper.jar"
+    fi
+else
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
+    fi
+    if [ -n "$MVNW_REPOURL" ]; then
+      wrapperUrl="$MVNW_REPOURL/org/apache/maven/wrapper/maven-wrapper/3.1.1/maven-wrapper-3.1.1.jar"
+    else
+      wrapperUrl="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.1/maven-wrapper-3.1.1.jar"
+    fi
+    while IFS="=" read key value; do
+      case "$key" in (wrapperUrl) wrapperUrl="$value"; break ;;
+      esac
+    done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Downloading from: $wrapperUrl"
+    fi
+    wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
+    if $cygwin; then
+      wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"`
+    fi
+
+    if command -v wget > /dev/null; then
+        QUIET="--quiet"
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Found wget ... using wget"
+          QUIET=""
+        fi
+        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+            wget $QUIET "$wrapperUrl" -O "$wrapperJarPath"
+        else
+            wget $QUIET --http-user="$MVNW_USERNAME" --http-password="$MVNW_PASSWORD" "$wrapperUrl" -O "$wrapperJarPath"
+        fi
+        [ $? -eq 0 ] || rm -f "$wrapperJarPath"
+    elif command -v curl > /dev/null; then
+        QUIET="--silent"
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Found curl ... using curl"
+          QUIET=""
+        fi
+        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+            curl $QUIET -o "$wrapperJarPath" "$wrapperUrl" -f -L
+        else
+            curl $QUIET --user "$MVNW_USERNAME:$MVNW_PASSWORD" -o "$wrapperJarPath" "$wrapperUrl" -f -L
+        fi
+        [ $? -eq 0 ] || rm -f "$wrapperJarPath"
+    else
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Falling back to using Java to download"
+        fi
+        javaSource="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
+        javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class"
+        # For Cygwin, switch paths to Windows format before running javac
+        if $cygwin; then
+          javaSource=`cygpath --path --windows "$javaSource"`
+          javaClass=`cygpath --path --windows "$javaClass"`
+        fi
+        if [ -e "$javaSource" ]; then
+            if [ ! -e "$javaClass" ]; then
+                if [ "$MVNW_VERBOSE" = true ]; then
+                  echo " - Compiling MavenWrapperDownloader.java ..."
+                fi
+                # Compiling the Java class
+                ("$JAVA_HOME/bin/javac" "$javaSource")
+            fi
+            if [ -e "$javaClass" ]; then
+                # Running the downloader
+                if [ "$MVNW_VERBOSE" = true ]; then
+                  echo " - Running MavenWrapperDownloader.java ..."
+                fi
+                ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
+            fi
+        fi
+    fi
+fi
+##########################################################################################
+# End of extension
+##########################################################################################
+
+MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin; then
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
+  [ -n "$MAVEN_PROJECTBASEDIR" ] &&
+    MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"`
+fi
+
+# Provide a "standardized" way to retrieve the CLI args that will
+# work with both Windows and non-Windows executions.
+MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@"
+export MAVEN_CMD_LINE_ARGS
+
+WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+exec "$JAVACMD" \
+  $MAVEN_OPTS \
+  $MAVEN_DEBUG_OPTS \
+  -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
+  "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
+  ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"
diff --git a/rewrite-maven/src/test/resources/mvnw.cmd b/rewrite-maven/src/test/resources/mvnw.cmd
new file mode 100644
index 00000000000..474c9d6b74c
--- /dev/null
+++ b/rewrite-maven/src/test/resources/mvnw.cmd
@@ -0,0 +1,187 @@
+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements.  See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership.  The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License.  You may obtain a copy of the License at
+@REM
+@REM    http://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied.  See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Apache Maven Wrapper startup batch script, version 3.1.1
+@REM
+@REM Required ENV vars:
+@REM JAVA_HOME - location of a JDK home dir
+@REM
+@REM Optional ENV vars
+@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
+@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending
+@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
+@REM     e.g. to debug Maven itself, use
+@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+@REM ----------------------------------------------------------------------------
+
+@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
+@echo off
+@REM set title of command window
+title %0
+@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on'
+@if "%MAVEN_BATCH_ECHO%" == "on"  echo %MAVEN_BATCH_ECHO%
+
+@REM set %HOME% to equivalent of $HOME
+if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
+
+@REM Execute a user defined script before this one
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
+@REM check for pre script, once with legacy .bat ending and once with .cmd ending
+if exist "%USERPROFILE%\mavenrc_pre.bat" call "%USERPROFILE%\mavenrc_pre.bat" %*
+if exist "%USERPROFILE%\mavenrc_pre.cmd" call "%USERPROFILE%\mavenrc_pre.cmd" %*
+:skipRcPre
+
+@setlocal
+
+set ERROR_CODE=0
+
+@REM To isolate internal variables from possible post scripts, we use another setlocal
+@setlocal
+
+@REM ==== START VALIDATION ====
+if not "%JAVA_HOME%" == "" goto OkJHome
+
+echo.
+echo Error: JAVA_HOME not found in your environment. >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+:OkJHome
+if exist "%JAVA_HOME%\bin\java.exe" goto init
+
+echo.
+echo Error: JAVA_HOME is set to an invalid directory. >&2
+echo JAVA_HOME = "%JAVA_HOME%" >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+@REM ==== END VALIDATION ====
+
+:init
+
+@REM Find the project base dir, i.e. the directory that contains the folder ".mvn".
+@REM Fallback to current working directory if not found.
+
+set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR%
+IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir
+
+set EXEC_DIR=%CD%
+set WDIR=%EXEC_DIR%
+:findBaseDir
+IF EXIST "%WDIR%"\.mvn goto baseDirFound
+cd ..
+IF "%WDIR%"=="%CD%" goto baseDirNotFound
+set WDIR=%CD%
+goto findBaseDir
+
+:baseDirFound
+set MAVEN_PROJECTBASEDIR=%WDIR%
+cd "%EXEC_DIR%"
+goto endDetectBaseDir
+
+:baseDirNotFound
+set MAVEN_PROJECTBASEDIR=%EXEC_DIR%
+cd "%EXEC_DIR%"
+
+:endDetectBaseDir
+
+IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig
+
+@setlocal EnableExtensions EnableDelayedExpansion
+for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a
+@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS%
+
+:endReadAdditionalConfig
+
+SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
+set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
+set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+set WRAPPER_URL="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.1/maven-wrapper-3.1.1.jar"
+
+FOR /F "usebackq tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
+    IF "%%A"=="wrapperUrl" SET WRAPPER_URL=%%B
+)
+
+@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+@REM This allows using the maven wrapper in projects that prohibit checking in binary data.
+if exist %WRAPPER_JAR% (
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Found %WRAPPER_JAR%
+    )
+) else (
+    if not "%MVNW_REPOURL%" == "" (
+        SET WRAPPER_URL="%MVNW_REPOURL%/org/apache/maven/wrapper/maven-wrapper/3.1.1/maven-wrapper-3.1.1.jar"
+    )
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Couldn't find %WRAPPER_JAR%, downloading it ...
+        echo Downloading from: %WRAPPER_URL%
+    )
+
+    powershell -Command "&{"^
+		"$webclient = new-object System.Net.WebClient;"^
+		"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
+		"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
+		"}"^
+		"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%WRAPPER_URL%', '%WRAPPER_JAR%')"^
+		"}"
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Finished downloading %WRAPPER_JAR%
+    )
+)
+@REM End of extension
+
+@REM Provide a "standardized" way to retrieve the CLI args that will
+@REM work with both Windows and non-Windows executions.
+set MAVEN_CMD_LINE_ARGS=%*
+
+%MAVEN_JAVA_EXE% ^
+  %JVM_CONFIG_MAVEN_PROPS% ^
+  %MAVEN_OPTS% ^
+  %MAVEN_DEBUG_OPTS% ^
+  -classpath %WRAPPER_JAR% ^
+  "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" ^
+  %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
+if ERRORLEVEL 1 goto error
+goto end
+
+:error
+set ERROR_CODE=1
+
+:end
+@endlocal & set ERROR_CODE=%ERROR_CODE%
+
+if not "%MAVEN_SKIP_RC%"=="" goto skipRcPost
+@REM check for post script, once with legacy .bat ending and once with .cmd ending
+if exist "%USERPROFILE%\mavenrc_post.bat" call "%USERPROFILE%\mavenrc_post.bat"
+if exist "%USERPROFILE%\mavenrc_post.cmd" call "%USERPROFILE%\mavenrc_post.cmd"
+:skipRcPost
+
+@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
+if "%MAVEN_BATCH_PAUSE%"=="on" pause
+
+if "%MAVEN_TERMINATE_CMD%"=="on" exit %ERROR_CODE%
+
+cmd /C exit /B %ERROR_CODE%