Merge pull request #8991 from mbien/find-enum-constructor-usage-fix

Fixes find-usages and call-hierarchy on enum constructors.

Author: mbien

java/refactoring.java/src/org/netbeans/modules/refactoring/java/WhereUsedElement.java

@@ -162,6 +162,7 @@ public static WhereUsedElement create(CompilationInfo compiler, TreePath tree, b
         return create(compiler, tree, null, inTest, inPlatform, inDependency, inImport);
     }
 
+    @SuppressWarnings({"NestedAssignment", "AssignmentToMethodParameter"})
     public static WhereUsedElement create(CompilationInfo compiler, TreePath tree, JavaWhereUsedFilters.ReadWrite access, boolean inTest, boolean inPlatform, boolean inDependency, AtomicBoolean inImport) {
         CompilationUnitTree unit = tree.getCompilationUnit();
         CharSequence content = compiler.getSnapshot().getText();
@@ -195,9 +196,7 @@ public static WhereUsedElement create(CompilationInfo compiler, TreePath tree, J
         if (TreeUtilities.CLASS_TREE_KINDS.contains(t.getKind())) {
             int[] pos = treeUtils.findNameSpan((ClassTree)t);
             if (pos == null) {
-                Tree tr = tree.getParentPath().getLeaf();
-                if (tr instanceof NewClassTree) {
-                    NewClassTree newClass = (NewClassTree) tr;
+                if (tree.getParentPath().getLeaf() instanceof NewClassTree newClass) {
                     start = (int) sp.getStartPosition(unit, newClass.getIdentifier());
                     end = (int) sp.getEndPosition(unit, newClass.getIdentifier());
                 } else {
@@ -207,7 +206,7 @@ public static WhereUsedElement create(CompilationInfo compiler, TreePath tree, J
                     start = end = (int) sp.getStartPosition(unit, t);
                 }
                 // #213723 hotfix, happens for enum values
-                if(start < 0) {
+                if(start < 0 || end < 0) {
                     TreePath parentPath = tree.getParentPath();
                     if(parentPath != null && (parentPath = parentPath.getParentPath()) != null
                             && parentPath.getLeaf().getKind() == Tree.Kind.VARIABLE) {