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  • Ogre4J 使用中错误总结

    1、EXCEPTION_ACCESS_VIOLATION

    #
    # An unexpected error has been detected by Java Runtime Environment:
    #
    # EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x69f4b686, pid=400, tid=5828
    #
    # Java VM: Java HotSpot(TM) Client VM (11.3-b02 mixed mode windows-x86)
    # Problematic frame:
    # C [atioglxx.dll+0xf1b686]
    #
    # If you would like to submit a bug report, please visit:
    # http://java.sun.com/webapps/bugreport/crash.jsp
    # The crash happened outside the Java Virtual Machine in native code.
    # See problematic frame for where to report the bug.
    #

    这是指你去碰了不该碰的东西,越界了,也就是说在一个非UI线程去操作了UI线程。因为,SWT 在底层设计时不允许其他的线程访问 UI 线程,这样你就犯错了,所以在使用UI线程时要加上一句

    Java代码 复制代码 收藏代码
    1. swtShell.getDisplay().asyncExec(new Runnable() {
    2. public void run() {
    3. updateAssets((Map<String, MonitorObject>) peoples);
    4. }
    5. });

    2、java.util.ConcurrentModificationException

    工作中碰到个ConcurrentModificationException。代码如下:
    List list = ...;
    for(Iterator iter = list.iterator(); iter.hasNext();) {
    Object obj = iter.next();
    ...
    if(***) {
    list.remove(obj);
    }
    }
    在执行了remove方法之后,再去执行循环,iter.next()的时候,报java.util.ConcurrentModificationException(当然,如果remove的是最后一条,就不会再去执行next()操作了)

    总而言之,是你的list在你循环的时候,被你修改了,所以才报错。

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  • 原文地址:https://www.cnblogs.com/bjanzhuo/p/3576004.html
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