create from usage: do not suggest to create field in interfaces

java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/CreateFieldFromUsageFix.java

@@ -52,6 +52,11 @@ public class CreateFieldFromUsageFix extends CreateVarFromUsageFix {
     return false;
   }
 
+  @Override
+  protected boolean canBeTargetClass(PsiClass psiClass) {
+    return super.canBeTargetClass(psiClass) && !psiClass.isInterface() && !psiClass.isAnnotationType();
+  }
+
   @Override
   protected void invokeImpl(final PsiClass targetClass) {
     final Project project = myReferenceExpression.getProject();

java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/CreateFromUsageBaseFix.java

@@ -347,16 +347,20 @@ public abstract class CreateFromUsageBaseFix extends BaseIntentionAction {
     }
   }
 
-  private static void collectSupers(PsiClass psiClass, ArrayList<PsiClass> classes) {
+  private void collectSupers(PsiClass psiClass, ArrayList<PsiClass> classes) {
     classes.add(psiClass);
 
     final PsiClass[] supers = psiClass.getSupers();
     for (PsiClass aSuper : supers) {
-      if (aSuper.getManager().isInProject(aSuper)) {
+      if (canBeTargetClass(aSuper)) {
         collectSupers(aSuper, classes);
       }
     }
   }
+  
+  protected boolean canBeTargetClass(PsiClass psiClass) {
+    return psiClass.getManager().isInProject(psiClass);
+  }
 
   protected static void startTemplate (@NotNull Editor editor, final Template template, @NotNull final Project project) {
     startTemplate(editor, template, project, null);