Do not fail on resolveBinding() when symbol has no matching .class

Author: mickaelistria

org.eclipse.jdt.core.javac/src/org/eclipse/jdt/core/dom/JavacBindingResolver.java

@@ -47,9 +47,12 @@
 import com.sun.tools.javac.api.JavacTaskImpl;
 import com.sun.tools.javac.api.JavacTrees;
 import com.sun.tools.javac.code.Attribute;
-import com.sun.tools.javac.code.Attribute.Compound;
 import com.sun.tools.javac.code.ClassFinder;
 import com.sun.tools.javac.code.Symbol;
+import com.sun.tools.javac.code.Symtab;
+import com.sun.tools.javac.code.TypeTag;
+import com.sun.tools.javac.code.Types;
+import com.sun.tools.javac.code.Attribute.Compound;
 import com.sun.tools.javac.code.Symbol.ClassSymbol;
 import com.sun.tools.javac.code.Symbol.CompletionFailure;
 import com.sun.tools.javac.code.Symbol.MethodSymbol;
@@ -59,7 +62,6 @@
 import com.sun.tools.javac.code.Symbol.TypeSymbol;
 import com.sun.tools.javac.code.Symbol.TypeVariableSymbol;
 import com.sun.tools.javac.code.Symbol.VarSymbol;
-import com.sun.tools.javac.code.Symtab;
 import com.sun.tools.javac.code.Type.ArrayType;
 import com.sun.tools.javac.code.Type.ClassType;
 import com.sun.tools.javac.code.Type.ErrorType;
@@ -71,10 +73,9 @@
 import com.sun.tools.javac.code.Type.ModuleType;
 import com.sun.tools.javac.code.Type.PackageType;
 import com.sun.tools.javac.code.Type.TypeVar;
-import com.sun.tools.javac.code.TypeTag;
-import com.sun.tools.javac.code.Types;
 import com.sun.tools.javac.comp.Modules;
 import com.sun.tools.javac.tree.JCTree;
+import com.sun.tools.javac.tree.TreeInfo;
 import com.sun.tools.javac.tree.JCTree.JCAnnotatedType;
 import com.sun.tools.javac.tree.JCTree.JCAnnotation;
 import com.sun.tools.javac.tree.JCTree.JCArrayTypeTree;
@@ -100,7 +101,6 @@
 import com.sun.tools.javac.tree.JCTree.JCTypeUnion;
 import com.sun.tools.javac.tree.JCTree.JCVariableDecl;
 import com.sun.tools.javac.tree.JCTree.JCWildcard;
-import com.sun.tools.javac.tree.TreeInfo;
 import com.sun.tools.javac.util.Context;
 import com.sun.tools.javac.util.Names;
 
@@ -299,7 +299,8 @@ public JavacTypeBinding getTypeBinding(com.sun.tools.javac.code.Type type, com.s
 				// no type information  we could recover from
 				return null;
 			}
-			if (!type.isParameterized() && !type.isRaw() && type instanceof ClassType classType
+			if (!(type.tsym instanceof ClassSymbol sym && sym.classfile == null && sym.sourcefile == null)
+					&& !type.isParameterized() && !type.isRaw() && type instanceof ClassType classType
 					&& classType.interfaces_field == null) {
 				// workaround faulty case of TypeMismatchQuickfixText.testMismatchingReturnTypeOnGenericMethod
 				// interfaces/supertypes are not set which seem to imply that the compiler generated

org.eclipse.jdt.core.javac/src/org/eclipse/jdt/internal/javac/dom/JavacTypeBinding.java

@@ -176,6 +176,7 @@ public boolean isRecovered() {
 			return getComponentType().isRecovered();
 		}
 		return this.typeSymbol.kind == Kinds.Kind.ERR ||
+			(!type.isPrimitiveOrVoid() && this.typeSymbol instanceof ClassSymbol symbol && symbol.sourcefile == null && symbol.classfile == null) ||
 			this.type.allparams().stream().anyMatch(param -> param.isErroneous()) ||
 			(Object.class.getName().equals(this.typeSymbol.getQualifiedName().toString())
 			&& getJavaElement() == null);