1. WIKI教程
2. Java.lang包
3. Throwable fillInStackTrace()

Throwable fillInStackTrace()

描述 (Description)

java.lang.Throwable.fillInStackTrace()方法填充执行堆栈跟踪。 此方法在此Throwable对象中记录有关当前线程的堆栈帧的当前状态的信息。

声明 (Declaration)

以下是java.lang.Throwable.fillInStackTrace()方法的声明

public Throwable fillInStackTrace()

参数 (Parameters)

NA

返回值 (Return Value)

此方法返回对此Throwable实例的引用。

异常 (Exception)

NA

例子 (Example)

以下示例显示了java.lang.Throwable.fillInStackTrace（）方法的用法。

package com.iowiki;
import java.lang.*;
public class ThrowableDemo {
   public static void function1() throws Exception {
      throw new Exception("this is thrown from function1()");
   }
   public static void function2() throws Throwable {
      try {
         function1();
      } catch(Exception e) {
         System.err.println("Inside function2():");
         e.printStackTrace();
         throw e.fillInStackTrace();
      }
   }
   public static void main(String[] args) throws Throwable {
      try {
         function2();
      } catch (Exception e) {
         System.err.println("Caught Inside Main:");
         e.printStackTrace();
      }
   }
} 

让我们编译并运行上面的程序，这将产生以下结果 -

Inside function2():
java.lang.Exception: this is thrown from function1()
at ThrowableDemo.function1(ThrowableDemo.java:4)
at ThrowableDemo.function2(ThrowableDemo.java:9)
at ThrowableDemo.main(ThrowableDemo.java:19)
Caught Inside Main:
java.lang.Exception: this is thrown from function1()
at ThrowableDemo.function2(ThrowableDemo.java:13)
at ThrowableDemo.main(ThrowableDemo.java:19)