don't warn about final enum when it is not (IDEA-181211)

java/java-analysis-impl/src/com/intellij/codeInsight/daemon/impl/analysis/HighlightClassUtil.java

@@ -479,8 +479,9 @@ public class HighlightClassUtil {
   @Nullable
   static HighlightInfo checkCannotInheritFromFinal(PsiClass superClass, PsiElement elementToHighlight) {
     HighlightInfo errorResult = null;
-    if (superClass.hasModifierProperty(PsiModifier.FINAL) || superClass.isEnum()) {
-      String message = JavaErrorMessages.message("inheritance.from.final.class", superClass.getQualifiedName());
+    boolean isFinal = superClass.hasModifierProperty(PsiModifier.FINAL);
+    if (isFinal || superClass.isEnum()) {
+      String message = JavaErrorMessages.message("inheritance.from.final.class", superClass.getQualifiedName(), isFinal ? PsiKeyword.FINAL : PsiKeyword.ENUM);
       errorResult =
         HighlightInfo.newHighlightInfo(HighlightInfoType.ERROR).range(elementToHighlight).descriptionAndTooltip(message).create();
       QuickFixAction.registerQuickFixAction(errorResult,

java/java-psi-impl/src/messages/JavaErrorMessages.properties

@@ -122,7 +122,7 @@ abstract.cannot.be.instantiated=''{0}'' is abstract; cannot be instantiated
 duplicate.class.in.other.file=Duplicate class found in the file ''{0}''
 duplicate.class=Duplicate class: ''{0}''
 public.class.should.be.named.after.file=Class ''{0}'' is public, should be declared in a file named ''{0}.java''
-inheritance.from.final.class=Cannot inherit from final ''{0}''
+inheritance.from.final.class=Cannot inherit from {1} ''{0}''
 package.name.file.path.mismatch=Package name ''{0}'' does not correspond to the file path ''{1}''
 missing.package.statement=Missing package statement: ''{0}''
 interface.cannot.be.local=Interface not allowed here

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/genericsHighlighting/Enum.java

@@ -41,6 +41,12 @@ enum Operation {
 <error descr="There is no default constructor available in 'Operation'">class exte extends <error descr="Cannot inherit from final 'Operation'">Operation</error></error> {
 }
 
+enum withConstant {
+  A() {};
+}
+
+class extwithConstant extends <error descr="Cannot inherit from enum 'withConstant'">withConstant</error> {}
+
 class use {
   void f(Operation op) {
    switch(op) {