2. Exception in thread "main" java.lang.NullPointerException at com.example.MyClass.method(MyClass.java:10) ... 1. 2. 3. 1. 分析堆栈深度:检查printStackTrace调用的频率和堆栈深度。 引入性能监控工具:使用 APM(应用性能管理)工具监控应用性能。 重构代码:将printStackTrace替换为更高效的日志记录方法。
但是在控制台使用e.printStackTrace()却能打印出错误类型或错误行数，如空指针。
java.lang.NullPointerExceptionat MyClass.mash(MyClass.java:9)at MyClass.crunch(MyClass.java:6)at MyClass.main(MyClass.java:...
@文心快码java.lang.runtimeexception: print stack trace 文心快码在Java中,java.lang.RuntimeException是一个未检查异常(unchecked exception),它表示在Java虚拟机(JVM)正常操作期间可能遇到的编程错误。这类异常在运行时发生,通常是由于程序员的逻辑错误或不当使用方式引起的,例如空指针引用、数组越界等。由于它们不...
比较简单直接的方式就是打印异常栈轨迹Stack Trace。说起栈轨迹,可能很多人和我一样,第一反应就是printStackTrace()方法。其实除了这个方法,还有一些别的内容也是和栈轨迹有关的。1.printStackTrace()首先需要明确,这个方法并不是来自于Exception类。Exception类本身除了定义了几个构造器之外,所有的方法都是从其父类...
dejaVu.add(this);synchronized(s.lock()) {//Print our stack traces.println(this); StackTraceElement[] trace=getOurStackTrace();for(StackTraceElement traceElement : trace) s.println("\tat " +traceElement);//Print suppressed exceptions, if anyfor(Throwable se : getSuppressed()) ...
Any exceptions that were suppressed in order to deliver an exception are printed out beneath the stack trace. The format of this information depends on the implementation, but the following example may be regarded as typical: text/java Копирај Exception in thread "main" java.lang....
As of release 7, the platform supports the notion ofsuppressed exceptions(in conjunction with thetry-with-resources statement). Any exceptions that were suppressed in order to deliver an exception are printed out beneath the stack trace. The format of this information depends on the implementation,...
Any exceptions that were suppressed in order to deliver an exception are printed out beneath the stack trace. The format of this information depends on the implementation, but the following example may be regarded as typical: text/java 複製 Exception in thread "main" java.lang.Exception: ...
13.9.printStackTrace,getStackTraceandgetMessage Recall fromSection 13.6that exceptions derive from classThrowable. ClassThrowableoffers aprintStackTracemethod that outputs to the standard error stream the stack trace (discussed inSection 13.3). Often, this is helpful in testing and debugging. ClassThrowable...