#vulnerable code 
                                public Map<String,Class<?>> getTypeMap() throws SQLException {
        synchronized (typeMap) {
            if (this.typeMap == null) {
                this.typeMap = new HashMap<String, Class<?>>();
            }

            return this.typeMap;
        }
    } 
                            #location 2 
                            #vulnerability type THREAD_SAFETY_VIOLATION
#fixed code
                                public Map<String,Class<?>> getTypeMap() throws SQLException {
        synchronized (this) {
            if (this.typeMap == null) {
                this.typeMap = new HashMap<String, Class<?>>();
            }

            return this.typeMap;
        }
    }