diff --git a/base-test/org.eclipse.jdt.groovy.core.tests.compiler/src/org/eclipse/jdt/groovy/core/tests/basic/GroovySimpleTests.java b/base-test/org.eclipse.jdt.groovy.core.tests.compiler/src/org/eclipse/jdt/groovy/core/tests/basic/GroovySimpleTests.java
index 4d4750a7bd..f01560d7e9 100644
--- a/base-test/org.eclipse.jdt.groovy.core.tests.compiler/src/org/eclipse/jdt/groovy/core/tests/basic/GroovySimpleTests.java
+++ b/base-test/org.eclipse.jdt.groovy.core.tests.compiler/src/org/eclipse/jdt/groovy/core/tests/basic/GroovySimpleTests.java
@@ -5922,6 +5922,9 @@ public void testInnerClass1() {
             "  }\n" +
             "  public java.lang.Object run() {\n" +
             "    new Runnable() {\n" +
+            "      x() {\n" +
+            "        super();\n" +
+            "      }\n" +
             "      public void run() {\n" +
             "      }\n" +
             "    };\n" +
@@ -5949,6 +5952,9 @@ public void testInnerClass1a() {
         checkGCUDeclaration("A.groovy",
             "public class A {\n" +
             "  private java.lang.Object foo = new Runnable() {\n" +
+            "    x() {\n" +
+            "      super();\n" +
+            "    }\n" +
             "    public void run() {\n" +
             "    }\n" +
             "  };\n" +
diff --git a/base/org.eclipse.jdt.groovy.core/src/org/codehaus/jdt/groovy/internal/compiler/ast/GroovyClassScope.java b/base/org.eclipse.jdt.groovy.core/src/org/codehaus/jdt/groovy/internal/compiler/ast/GroovyClassScope.java
index c418885f9b..161d0375b9 100644
--- a/base/org.eclipse.jdt.groovy.core/src/org/codehaus/jdt/groovy/internal/compiler/ast/GroovyClassScope.java
+++ b/base/org.eclipse.jdt.groovy.core/src/org/codehaus/jdt/groovy/internal/compiler/ast/GroovyClassScope.java
@@ -361,7 +361,17 @@ public void buildFieldsAndMethods() {
         }
 
         for (GroovyTypeDeclaration anonType : ((GroovyTypeDeclaration) referenceContext).getAnonymousTypes()) {
-            anonType.scope = new GroovyClassScope(this, anonType);
+            if (anonType.scope == null) {
+                if (anonType.getClassNode().isEnum()) {
+                    anonType.scope = new GroovyClassScope(this, anonType);
+                    // TODO: anonType.resolve(anonType.scope.parent); or ?
+                } else {
+                    anonType.enclosingScope.parent = this;
+                    anonType.allocation.resolveType(anonType.enclosingScope);
+                    assert anonType.binding != null && anonType.scope != null;
+                    // TODO: Replace anonType.scope with new GroovyClassScope?
+                }
+            }
         }
     }
 
diff --git a/base/org.eclipse.jdt.groovy.core/src/org/codehaus/jdt/groovy/internal/compiler/ast/GroovyCompilationUnitDeclaration.java b/base/org.eclipse.jdt.groovy.core/src/org/codehaus/jdt/groovy/internal/compiler/ast/GroovyCompilationUnitDeclaration.java
index 2295681d72..3ef269630a 100644
--- a/base/org.eclipse.jdt.groovy.core/src/org/codehaus/jdt/groovy/internal/compiler/ast/GroovyCompilationUnitDeclaration.java
+++ b/base/org.eclipse.jdt.groovy.core/src/org/codehaus/jdt/groovy/internal/compiler/ast/GroovyCompilationUnitDeclaration.java
@@ -1157,6 +1157,7 @@ private void createTypeDeclarations(ModuleNode moduleNode) {
                     innersToRecord.computeIfAbsent(outerClassNode, x -> new ArrayList<>()).add(typeDeclaration);
 
                     if (innerClassNode.isAnonymous()) {
+                        typeDeclaration.name = CharOperation.NO_CHAR;
                         typeDeclaration.bits |= (ASTNode.IsAnonymousType | ASTNode.IsLocalType);
                         typeDeclaration.bits |= (typeDeclaration.superclass.bits & ASTNode.HasTypeAnnotations);
                         QualifiedAllocationExpression allocation = new QualifiedAllocationExpression(typeDeclaration);