void (PsiJavaCodeReferenceElement newClassReference, PsiVariable variable) { final PsiTypeElement typeElement = variable.getTypeElement(); if (typeElement == null) { return; } if (!typeElement.isInferredType()) { final PsiJavaCodeReferenceElement oldReferenceElement = typeElement.getInnermostComponentReferenceElement(); if (oldReferenceElement == null) { return; } else { oldReferenceElement.replace(newClassReference); } } final PsiExpression newExpression = getNewStringBuffer(variable.getInitializer()); if (!(newExpression instanceof PsiNewExpression)) { return; } // no need to handle anonymous classes because StringBuffer is final final PsiJavaCodeReferenceElement classReference = ((PsiNewExpression)newExpression).getClassReference(); if (classReference == null) { return; } classReference.replace(newClassReference); }