#vulnerable code 
                                public void removeCache(Object key) {
        if (key == null) return;
        Jboot.getJbootCache().remove(tableName(), key);
    } 
                            #location 3 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                                public void removeCache(Object key) {
        if (key == null) return;
        Jboot.getCache().remove(tableName(), key);
    }