java - 如何解决资源不正确关闭或释放问题

Question

我提交了 Veraocode 安全测试工具的代码，并在以下代码中收到了错误的资源关闭或释放:

//This function is used to print trace in the in the LogFile for debugging purpose  
PrintWriter f;  
            try {  
                f = new PrintWriter(new BufferedWriter(new FileWriter(fileName,true)));//issue at this line  
                synchronized(this) {  
                    f.println(new StringBuffer(dateString).append("<").append(Thread.currentThread().getName()).append(">").append(traceLog).toString());  
                }  
                f.close();  
                checkFileSize();  
            }catch(IOException e){    
                e.printStackTrace();  
            }   

请有人帮我解决这个问题...

Answer 1

您需要关闭 PrintWriter。

f.close();