| 发表于：2007-07-10 10:01:16 楼主 |
小弟课程设计是用sqlserver2000+jbuilder2006写一个超市管理系统 于是到网上当了一个 结果怎么调试也调不出来
老弹出一个对话框告诉我
hit breakpoint in class java.awt.eventdispatchthread.
tracing is disabled for this class.
下面是 （
g:\borland\jbuilder2006\jdk1.5\bin\javaw -classpath "c:\documents and settings\jgh\jbproject\supermacket\classes;g:\borland\jbuilder2006\jdk1.5\lib\tools.jar;g:\borland\jbuilder2006\jdk1.5\lib\jconsole.jar;g:\borland\jbuilder2006\jdk1.5\lib\htmlconverter.jar;g:\borland\jbuilder2006\jdk1.5\lib\dt.jar;g:\borland\jbuilder2006\jdk1.5\jre\lib\charsets.jar;g:\borland\jbuilder2006\jdk1.5\jre\lib\jsse.jar;g:\borland\jbuilder2006\jdk1.5\jre\lib\rt.jar;g:\borland\jbuilder2006\jdk1.5\jre\lib\deploy.jar;g:\borland\jbuilder2006\jdk1.5\jre\lib\plugin.jar;g:\borland\jbuilder2006\jdk1.5\jre\lib\ext\sunpkcs11.jar;g:\borland\jbuilder2006\jdk1.5\jre\lib\ext\sunjce_provider.jar;g:\borland\jbuilder2006\jdk1.5\jre\lib\ext\localedata.jar;g:\borland\jbuilder2006\jdk1.5\jre\lib\ext\dnsns.jar;g:\borland\jbuilder2006\jdk1.5\jre\lib\jce.jar;g:\borland\jbuilder2006\jdk1.5\jre\lib\im\thaiim.jar;g:\borland\jbuilder2006\jdk1.5\jre\lib\im\indicim.jar;g:\borland\jbuilder2006\jdk1.5\jre\lib\javaws.jar " -xdebug -xnoagent -djava.compiler=none -xrunjdwp:transport=dt_socket,address=hit-software:1542,suspend=y supermacket.application1
hit uncaught exception java.lang.nullpointerexception
）
双击之后 显示evrntdispatchthread的源代码中的run（)函数那行变成灰绿色
// jbuilder api decompiler stub source generated from class file
// 2007-7-10
// -- implementation of methods is not available
package java.awt;
// imports
import java.awt.event.mouseevent;
import sun.awt.debughelper;
class eventdispatchthread extends thread {
// fields
private static final debughelper dbg;
private eventqueue thequeue;
private boolean dodispatch;
private static final int any_event = -1;
private static final string handlerpropname = "sun.awt.exception.handler ";
private static string handlerclassname;
private static string no_handler;
// constructors
eventdispatchthread（threadgroup threadgroup, string string, eventqueue eventqueue) { }
// methods
void stopdispatchingimpl（boolean _boolean) { }
public void stopdispatching（) { }
public void stopdispatchinglater（) { }
//////////////////////////////////////////////////////////
public void run（) { } // 显示这行有问题
//////////////////////////////////////////////////////////
void pumpevents（conditional conditional) { }
void pumpeventsforhierarchy（conditional conditional, component component) { }
void pumpevents（int _int, conditional conditional) { }
void pumpeventsforhierarchy（int _int, conditional conditional, component component) { }
boolean checkmouseeventformodaljinternalframe（mouseevent mouseevent, component component) { return false;}
boolean pumponeeventforhierarchy（int _int, component component) { return false;}
private void processexception（throwable throwable, boolean _boolean) { }
private boolean handleexception（throwable throwable) { return false;}
boolean isdispatching（eventqueue eventqueue) { return false;}
eventqueue geteventqueue（) { return null;}
// inner classes
class stopdispatchevent extends awtevent implements activeevent {
// constructors
public stopdispatchevent（eventdispatchthread eventdispatchthread) { }
// methods
public void dispatch（) { }
}
}
这到底是什么原因呢 小弟是个学生 实在是不懂 请高手指教
（小弟出来乍到 没有多少分可以送 现在只有不到10分 下东西还要扣分 真郁闷 请高手原谅）
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