[DO NOT MERGE GR-34193] Create demo that runs espresso in webimage

ci/common.jsonnet

@@ -239,6 +239,14 @@ local common_json = import "../common.json";
       } else {},
     },
 
+    espresso:: {
+      downloads+: {
+       EXTRA_JAVA_HOMES+: {
+                pathlist+: [jdks_data["oraclejdk21"], jdks_data["oraclejdk25"]],
+           }
+       }
+    },
+
     sulong:: self.cmake + {
       packages+: if self.os == "windows" then {
         msvc_source: "==14.0",

common.json

@@ -4,7 +4,7 @@
     "Jsonnet files should not include this file directly but use ci/common.jsonnet instead."
   ],
 
-  "mx_version": "7.58.9",
+  "mx_version": "7.59.0",
 
   "COMMENT.jdks": "When adding or removing JDKs keep in sync with JDKs in ci/common.jsonnet",
   "jdks": {

espresso-shared/src/com.oracle.truffle.espresso.classfile/src/com/oracle/truffle/espresso/classfile/JavaVersion.java

@@ -111,6 +111,10 @@ public static JavaVersion forVersion(String version) {
         }
     }
 
+    public Runtime.Version toRunTimeVersion() {
+        return Runtime.Version.parse(toString());
+    }
+
     private static JavaVersion forVersion(Runtime.Version version) {
         return forVersion(version.feature());
     }

espresso/ci/ci_common/common.jsonnet

@@ -15,7 +15,7 @@ local benchmark_suites = ['dacapo', 'renaissance', 'scala-dacapo'];
   local that = self,
 
   // platform-specific snippets
-  common: graal_common.deps.sulong + {
+  common: graal_common.deps.sulong + graal_common.deps.espresso + {
     python_version: '3',
     environment+: {
       GRAALVM_CHECK_EXPERIMENTAL_OPTIONS: "true",

espresso/mx.espresso/suite.py

@@ -101,7 +101,41 @@
             "sourceDirs": ["src"],
             # Contains classes in sun.nio.* that only compile with javac.
             "forceJavac": "true",
-            "javaCompliance": "8+",
+            "javaCompliance": "21+",
+            "patchModule": "java.base",
+            "checkPackagePrefix": False,  # Contains classes in java.io and sun.nio.
+            "checkstyle": "com.oracle.truffle.espresso",
+        },
+
+        "com.oracle.truffle.espresso.io.jdk21": {
+            "subDir": "src",
+            "sourceDirs": ["src"],
+            "dependencies": [
+                "com.oracle.truffle.espresso.io",
+            ],
+            # Contains classes in sun.nio.* that only compile with javac.
+            "overlayTarget": "com.oracle.truffle.espresso.io",
+            "forceJavac": "true",
+            "multiReleaseJarVersion": "21",
+            "patchModule": "java.base",
+            "javaCompliance": "21",
+            "checkPackagePrefix": False,  # Contains classes in java.io and sun.nio.
+            "checkstyle": "com.oracle.truffle.espresso",
+        },
+
+        "com.oracle.truffle.espresso.io.jdk25": {
+            "subDir": "src",
+            "sourceDirs": ["src"],
+            "dependencies": [
+                "com.oracle.truffle.espresso.io",
+            ],
+            # Contains classes in sun.nio.* that only compile with javac.
+            "spotbugs": "false",  # inorder to pass the gate
+            "overlayTarget": "com.oracle.truffle.espresso.io",
+            "forceJavac": "true",
+            "multiReleaseJarVersion": "25",
+            "patchModule": "java.base",
+            "javaCompliance": "25",
             "checkPackagePrefix": False,  # Contains classes in java.io and sun.nio.
             "checkstyle": "com.oracle.truffle.espresso",
         },

espresso/src/com.oracle.truffle.espresso.io.jdk21/src/sun/nio/ch/DefaultPollerProvider.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package sun.nio.ch;
+
+import java.io.IOException;
+
+public class DefaultPollerProvider extends PollerProvider {
+
+    @Override
+    Poller readPoller() throws IOException {
+        return new TrufflePoller(true);
+    }
+
+    @Override
+    Poller writePoller() throws IOException {
+        return new TrufflePoller(false);
+    }
+}

espresso/src/com.oracle.truffle.espresso.io.jdk21/src/sun/nio/ch/TrufflePoller.java

@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package sun.nio.ch;
+
+import java.io.IOException;
+import java.nio.channels.SelectionKey;
+
+public class TrufflePoller extends Poller {
+    private final int id;
+    private final int event;
+
+    TrufflePoller(boolean read) {
+        super(read);
+        this.event = (read) ? SelectionKey.OP_READ : SelectionKey.OP_WRITE;
+        id = init();
+    }
+
+    @Override
+    void implRegister(int fdVal) throws IOException {
+        register(id, fdVal, event);
+    }
+
+    @Override
+    void implDeregister(int fdVal) {
+        deregister(id, fdVal);
+    }
+
+    @Override
+    int poll(int timeout) throws IOException {
+        doSelect(id, timeout);
+        int[] fds = getReadyFds(id);
+        for (int i = 0; i < fds.length; i++) {
+            polled(fds[i]);
+        }
+        return fds.length;
+    }
+
+    static native int init();
+
+    static native void deregister(int id, int fd);
+
+    static native void register(int id, int fd, int newEvents);
+
+    static native int doSelect(int id, long timeout);
+
+    static native int[] getReadyFds(int id);
+
+}

espresso/src/com.oracle.truffle.espresso.io.jdk21/src/sun/nio/fs/NewFileChannelHelper.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package sun.nio.fs;
+
+import java.io.Closeable;
+import java.io.FileDescriptor;
+import java.nio.channels.FileChannel;
+
+import sun.nio.ch.FileChannelImpl;
+
+public class NewFileChannelHelper {
+    public static FileChannel open(FileDescriptor fd, String path,
+                    boolean readable, boolean writable,
+                    boolean sync, boolean direct, Closeable parent) {
+        return FileChannelImpl.open(fd, path, readable, writable, direct, parent);
+    }
+}

espresso/src/com.oracle.truffle.espresso.io.jdk25/src/sun/nio/ch/DefaultPollerProvider.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package sun.nio.ch;
+
+import java.io.IOException;
+
+public class DefaultPollerProvider extends PollerProvider {
+    @Override
+    Poller readPoller(boolean subPoller) throws IOException {
+        if (subPoller) {
+            // the concept of subPoller relies on virtual threads which are not supported thus we
+            // should not reach here.
+            throw new IllegalStateException("should not reach here");
+        }
+        return new TrufflePoller(true);
+    }
+
+    @Override
+    Poller writePoller(boolean subPoller) throws IOException {
+        if (subPoller) {
+            // same reasoning as above
+            throw new IllegalStateException("should not reach here");
+        }
+        return new TrufflePoller(false);
+    }
+}

espresso/src/com.oracle.truffle.espresso.io.jdk25/src/sun/nio/ch/TrufflePoller.java

@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package sun.nio.ch;
+
+import java.io.IOException;
+import java.nio.channels.SelectionKey;
+
+public class TrufflePoller extends Poller {
+    private final int id;
+    private final int event;
+
+    TrufflePoller(boolean read) {
+        super();
+        this.event = (read) ? SelectionKey.OP_READ : SelectionKey.OP_WRITE;
+        id = init();
+    }
+
+    @Override
+    void implRegister(int fdVal) throws IOException {
+        // this registeration must be one shot now
+        register(id, fdVal, event);
+    }
+
+    @Override
+    void implDeregister(int fdVal, boolean polled) {
+        if (!polled) {
+            deregister(id, fdVal);
+        }
+    }
+
+    @Override
+    int poll(int timeout) throws IOException {
+        doSelect(id, timeout);
+        int[] fds = getReadyFds(id);
+        for (int i = 0; i < fds.length; i++) {
+            polled(fds[i]);
+        }
+        return fds.length;
+    }
+
+    static native int init();
+
+    static native void deregister(int id, int fd);
+
+    static native void register(int id, int fd, int newEvents);
+
+    static native int doSelect(int id, long timeout);
+
+    static native int[] getReadyFds(int id);
+
+}

espresso/src/com.oracle.truffle.espresso.io.jdk25/src/sun/nio/fs/NewFileChannelHelper.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package sun.nio.fs;
+
+import java.io.Closeable;
+import java.io.FileDescriptor;
+import java.nio.channels.FileChannel;
+
+import sun.nio.ch.FileChannelImpl;
+
+public class NewFileChannelHelper {
+    public static FileChannel open(FileDescriptor fd, String path,
+                    boolean readable, boolean writable,
+                    boolean sync, boolean direct, Closeable parent) {
+        return FileChannelImpl.open(fd, path, readable, writable, sync, direct, parent);
+    }
+}