diff --git a/rewrite-java/src/main/java/org/openrewrite/java/internal/parser/TypeTable.java b/rewrite-java/src/main/java/org/openrewrite/java/internal/parser/TypeTable.java
index 36cd0140584..9f853e9a79a 100644
--- a/rewrite-java/src/main/java/org/openrewrite/java/internal/parser/TypeTable.java
+++ b/rewrite-java/src/main/java/org/openrewrite/java/internal/parser/TypeTable.java
@@ -139,6 +139,11 @@ static class Reader {
         private final Map<ClassDefinition, List<Member>> membersByClassName = new HashMap<>();
 
         public void read(InputStream is, Collection<String> artifactNames) throws IOException {
+            if (artifactNames.isEmpty()) {
+                // could be empty due to the filtering in `artifactsNotYetWritten()`
+                return;
+            }
+
             Set<Pattern> artifactNamePatterns = artifactNames.stream()
                     .map(name -> Pattern.compile(name + ".*"))
                     .collect(Collectors.toSet());