#vulnerable code 
                                private void evaluateStatement(Object target, TemporaryFolder temporaryFolder, Statement base) throws Throwable {
        container = null;
        setAndCheckIfWritable(temporaryFolder);
        try {
            LOGGER.info("Setting up {} in {}", getName(), temporaryFolder.getRoot().getAbsolutePath());
            container = createHiveServerContainer(target, temporaryFolder);
            base.evaluate();
        } finally {
            tearDown();
        }
    } 
                            #location 3 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                                private void evaluateStatement(Object target, TemporaryFolder temporaryFolder, Statement base) throws Throwable {
        container = null;
        FileUtil.setPermission(temporaryFolder.getRoot(), FsPermission.getDirDefault());
        try {
            LOGGER.info("Setting up {} in {}", getName(), temporaryFolder.getRoot().getAbsolutePath());
            container = createHiveServerContainer(target, temporaryFolder);
            base.evaluate();
        } finally {
            tearDown();
        }
    }