boolean (final PsiReferenceExpression ref) { if (!myMethod.hasModifierProperty(PsiModifier.SYNCHRONIZED)) return false; final PsiMethod containingMethod = Util.getContainingMethod(ref); if (containingMethod == null) return true; if (!containingMethod.hasModifierProperty(PsiModifier.SYNCHRONIZED)) return true; final PsiClass sourceContainingClass = myMethod.getContainingClass(); final PsiClass targetContainingClass = containingMethod.getContainingClass(); return !sourceContainingClass.equals(targetContainingClass); }