@Nullable
    private static PsiTryStatement findLockTryStatement(PsiReferenceExpression expression, String guard) {
      PsiTryStatement tryStatement = PsiTreeUtil.getParentOfType(expression, PsiTryStatement.class);
      while (tryStatement != null) {
        PsiCodeBlock finallyBlock = tryStatement.getFinallyBlock();
        if (finallyBlock != null) {
          for (PsiStatement psiStatement : finallyBlock.getStatements()) {
            if (isLockGuardStatement(guard, psiStatement, "unlock")) {
              return tryStatement;
            }
          }
        }
        tryStatement = PsiTreeUtil.getParentOfType(tryStatement, PsiTryStatement.class);
      }
      return null;
    }
@Nullable
    private static PsiTryStatement findLockTryStatement(PsiReferenceExpression expression, String guard)