invert boolean: leave final fields without initializer as is (IDEA-152514)

java/java-impl/src/com/intellij/refactoring/invertBoolean/JavaInvertBooleanDelegate.java

@@ -182,7 +182,7 @@ public class JavaInvertBooleanDelegate extends InvertBooleanDelegate {
 
   @Override
   public void invertElementInitializer(final PsiElement element) {
-    if (element instanceof PsiField && ((PsiField)element).getInitializer() == null) {
+    if (element instanceof PsiField && ((PsiField)element).getInitializer() == null && !((PsiField)element).hasModifierProperty(PsiModifier.FINAL)) {
       ((PsiField)element).setInitializer(JavaPsiFacade.getElementFactory(element.getProject()).createExpressionFromText("true", element));
     } else if (element instanceof PsiVariable) {
       final PsiExpression initializer = ((PsiVariable)element).getInitializer();

java/java-tests/testData/refactoring/invertBoolean/FinalBooleanFieldWithoutInitializer.java

@@ -0,0 +1,8 @@
+class Test {
+  private final boolean notInitial<caret>ized;
+
+  public Test() {
+      notInitialized = true;
+  }
+
+}

java/java-tests/testData/refactoring/invertBoolean/FinalBooleanFieldWithoutInitializer_after.java

@@ -0,0 +1,8 @@
+class Test {
+  private final boolean notInitializedInverted;
+
+  public Test() {
+      notInitializedInverted = false;
+  }
+
+}