'return' inside 'finally' block 1. 解释'finally'块的作用和执行时机 finally块在try-catch结构中扮演着确保资源被正确释放或执行必要的清理工作的角色。不论try块中的代码是否执行成功,或者catch块是否捕获到异常,finally块都会被执行。finally块的主要用途包括关闭文件、释放数据库连接等,以确保资源的正确管理。它...
3、finally 中有 return 时,会直接在 finally 中退出,导致 try、catch 中的 return 失效。IDE 中也会提示如下信息:'return' inside 'finally' block Inspection info: Reports return statements inside of finally blocks. While occasionally intended, such return statements may mask exceptions thrown, and treme...
Inside try block Inside finally block 1 可以看到，即使在try块中执行了return语句，仍然会执行finally...
//编译器把finally中的return语句标识为一个warning. 警告为'return' inside 'finally' block //Inspection info: Reports return statements inside of finally blocks. //While occasionally intended, such return statements may mask thrown exceptions and complicate debugging. // 翻译为中文 // 'finally'块中...
悟空云课堂| 第二十一期:从finally块中return漏洞(CWE-584: Return Inside Finally Block) 01 什么是从finally块中return? Java中的finally一般与try一起使用,在程序进入try块之后,无论程序是因为异常而中止或其它方式返回终止的,finally块的内容一定会被执行。代码在finally块中有一个return语句,这将导致try块中的...
不要在finally块中使用return语句。finally块应该有“cleanup”代码。 五、从finally块中return漏洞样例: 用静态代码检测分析上述程序代码,则可以发现代码中存在着“从finally块中return非正常退出” 导致的代码缺陷,如下图: 从finally块中return在CWE中被编号为CWE-584: Return Inside Finally Block...
}finally { System.out.println("finally block"); } } } 清单2 的执行结果如下: try block finally 语句块还是没有执行,为什么呢?因为我们在 try 语句块中执行了 System.exit (0) 语句,终止了 Java 虚拟机的运行。那有人说了,在一般的 Java 应用中基本上是不会调用这个 System.exit(0) 方法的。OK ...
If so, then directly return from try block itself. As soon as return is executed inside try block, first it goes to finally and executes all code inside finally and returns. Indirectly you can say, "Having a return statement inside a try block is equivalent to having return statement as ...
throw inside finally block,在finally块中使用trycatch,并且catch的时候抛出异常的一个问题throwinsidefinallyblock可能会导致抛出finally中的异常,try中的异常不能抛出
Reports a return statement inside a finally block. Such return statements may mask exceptions thrown, and complicate debugging. Suppress an inspection in the editor Position the caret at the highlighted line and press Alt+Enter or click . Click the arrow next to the inspection you want ...