IntentionPreviewInfo (@NotNull Project project, @NotNull Editor editor, @NotNull PsiFile file) { List<? extends PsiClass> classesToImport = getClassesToImport(true); if (classesToImport.isEmpty()) return IntentionPreviewInfo.EMPTY; PsiClass firstClassToImport = classesToImport.get(0); PsiJavaCodeReferenceElement ref = PsiTreeUtil.findSameElementInCopy(getReference(), file); bindReference(ref, firstClassToImport); return IntentionPreviewInfo.DIFF; }