Sun的这个java.lang.Throwable 源码 设计非常糟糕,完全没有扩展性,

我在IBM 的Java JDK下,继承java.lang.Throwable重新定义了一个ExceptionWrapper,重载了java.lang.Throwable的大部分方法,

目的就是,不用Java本身的那种堆栈信息,大家知道的,Java本身的堆栈信息冗余性非常大,点击一个Action报错就上百行,当时真正有价值的错误信息就几行。

IBM的JDK是可以重写java.lang.Throwable的方法的,但是Sun的JDK坑爹的是private的方法,重写不了!这种设计真是坑爹。

不只是我遇到这个问题,网上也有人再说,问题的详细描述如下:

Hello java gods!  I've no idea, whether this is the right forum to post my request to, but I hope, some sun java developers will read it and may be able to do the following change:  class Throwable, method void printStackTraceAsCause(PrintStream s, StackTraceElement[] causedTrace)  and  class Throwable, method void printStackTraceAsCause(PrintWriter s, StackTraceElement[] causedTrace)  are both declared private. This should be protected, because we are developing a client server environment where exceptions are transferred over the network and for several reasons, I use a special own StackTraceElement. This is necessary, because the original StackTraceElements are created "magically" by the VM and cannot be constructed by normal code. Additionally, I need more information and have added fields to my own RemoteStackTraceElement.  Well, if the above methods were protected instead of private, it would always execute my methods instead of the original ones, if one of my Exceptions is in the list of causes. This means, I could encapsulate my exception the following way, which is sometimes needed, e.g. in Listeners:  void methodGivenByInterface() throws ExceptionGivenByInterface {   try {     client.execCmd(...);   } catch (RemoteException x) {     throw new ExceptionGivenByInterface(x);   } }  If the method that executes myMethod does a printStackTrace, it executes the one of ExceptionGivenByInterface. Because my RemoteException is the cause, the printStackTraceAsCause of it will be executed. But because it is declared private in Throwable, it does not execute my own printStackTraceAsCause but the one of Throwable.  I hope, I could make clear, why it is necessary to change private to protected, and I hope, someone finds the time to change this one word at both methods   Thousand thanks in advance for getting a protected Throwable.printStackTraceAsCause in j2sdk1.5x!  Best regards, Marco

坑爹的Sun JDK的更多相关文章

  1. 无cookie下载Oracle otn上的sun jdk等软件

    从Oracle下载sun jdk提示:In order to download products from Oracle Technology Network you must agree to th ...

  2. 第一章 删掉centos原有的openjdk并安装sun jdk

    一.卸载原有openjdk rpm -qa | grep java 之后,将展示出来的全部卸载掉,我这里是5个 rpm -e --nodeps java-1.7.0-openjdk-1.7.0.111 ...

  3. Ubuntu安装Sun JDK及如何设置默认java JDK

    假设系统为Ubuntu 10.10 64位.    先来看看当前的系统默认的java版本,及提供商.通过命令java -version       kemix@kemix-VB10-64:~$ jav ...

  4. CentOS 安装 Sun JDK

    1. 卸载原Open JDK 查看已安装包 rpm -qa | grep java 如果已经安装有Open JDK,可能会列出类似下面的内容: tzdata-java-2015e-.el6.noarc ...

  5. Sun jdk, Openjdk, Icedtea jdk关系

    转自: http://blog.chinaunix.net/uid-20648944-id-3204527.html Sun jdk与Openjdk版本发展历史如下图所示: 1.    Openjdk ...

  6. openJdk和sun Jdk区别和安装

    openJdk和sun jdk的区别 使用过LINUX的人都应该知道,在大多数LINUX发行版本里,内置或者通过软件源安装JDK的话,都是安装的OpenJDK, 那么到底什么是OpenJDK,它与SU ...

  7. 删掉centos原有的openjdk并安装sun jdk

    [环境变量]删掉centos原有的openjdk并安装sun jdk   一.卸载原有openjdk rpm -qa | grep java 之后,将展示出来的全部卸载掉,我这里是5个 rpm -e ...

  8. 【环境变量】删掉centos原有的openjdk并安装sun jdk

    一.卸载原有openjdk rpm -qa | grep java 之后,将展示出来的全部卸载掉,我这里是5个 rpm -e --nodeps java-1.7.0-openjdk-1.7.0.111 ...

  9. Procedure for installing and setting Sun JDK Java on Default Amazon Linux AMI

    # First verify the version of Java being used is not SunJSK. java -version   # Get the latest Sun Ja ...

随机推荐

  1. Codeforces Round #520 (Div. 2) E. Company(dfs序判断v是否在u的子树里+lca+线段树)

    https://codeforces.com/contest/1062/problem/E 题意 给一颗树n,然后q个询问,询问编号l~r的点,假设可以删除一个点,使得他们的最近公共祖先深度最大.每次 ...

  2. centos7 配置ip

    1. 切换到root用户下: su root 2.进入network-scripts目录: cd /etc/sysconfig/network-scripts/ 3.该目录下一般第一个文件是主文件,我 ...

  3. 开机logo以及两种修改开机动画方法

    Android开机画面总共有三屏 一.第一屏:开机logo 1.选张png格式的图片,在Linux任意下执行(安装工具): sudo apt-get install pnmtoplainpm 2.在所 ...

  4. AngularJS实战之ng-repeat的详细用法

    一.基本语法 {{$index}}:获取元素的下标. {{$first}}:判断当前元素是否是第一个元素,是则为true,否则:false: {{$last}}:判断当前元素是否是最后一个元素,是则为 ...

  5. 利用tcpcopy引流过程

    tcpcopy是一个tcp流量复制工具,当前还支持udp和mysql流量的复制. 目的: 将机器10.24.110.21的5000端口流量引流到机器10.23.25.11的5000端口. 示例:将10 ...

  6. Django-配置、静态文件与路由

    -----配置文件 1.BASE_DIR BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))   2.DEBU ...

  7. 2018/02/25 PendingIntent使用

    https://www.cnblogs.com/liyiran/p/4656821.html http://blog.csdn.net/ydpl2007/article/details/7591642 ...

  8. 修改linux swap空间的swappiness,降低对硬盘的缓存

    linux 会使用硬盘的一部分做为SWAP分区,用来进行进程调度--进程是正在运行的程序--把当前不用的进程调成‘等待(standby)‘,甚至‘睡眠(sleep)’,一旦要用,再调成‘活动(acti ...

  9. Max Sum—hdu1003(简单DP) 标签: dp 2016-05-05 20:51 92人阅读 评论(0)

    Max Sum Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submi ...

  10. js五道经典练习题--第三道实现购物车功能

    <!DOCTYPE html><html> <head> <meta charset="UTF-8"> <title>& ...