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我尝试从http://jnotify.sourceforge.net/sample.html运行修改后的代码示例， 但出现以下错误：

Java 运行时环境检测到一个致命错误：

 EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x6d980b1f, pid=7308, tid=10568

 JRE version: 6.0_45-b06
 Java VM: Java HotSpot(TM) Client VM (20.45-b01 mixed mode windows-x86 )
 Problematic frame:
 V  [jvm.dll+0xa0b1f]

我以前见过这种情况，当未修改的代码示例中没有对侦听器的引用并且垃圾收集器将其删除时。但在这里我引用它。有没有人看到问题？

public static void sample() throws Exception {
    JNotifyListener listener = (JNotifyListener) new Listener();
    // path to watch
    String path = System.getProperty("D:/Pathname");

    // watch mask, specify events you care about,
    // or JNotify.FILE_ANY for all events.
    int mask = JNotify.FILE_CREATED | JNotify.FILE_DELETED
            | JNotify.FILE_MODIFIED | JNotify.FILE_RENAMED;

    // watch subtree?
    boolean watchSubtree = true;

    // add actual watch
    int watchID = JNotify.addWatch(path, mask, watchSubtree,
            listener);

    // sleep a little, the application will exit if you
    // don't (watching is asynchronous), depending on your
    // application, this may not be required
    Thread.sleep(1000000);

    // to remove watch the watch
    boolean res = JNotify.removeWatch(watchID);
    if (!res) {
        // invalid watch ID specified.
    }
}

static class Listener implements JNotifyListener {
    public void fileRenamed(int wd, String rootPath, String oldName,
            String newName) {
        print("renamed " + rootPath + " : " + oldName + " -> " + newName);
    }

    public void fileModified(int wd, String rootPath, String name) {
        print("modified " + rootPath + " : " + name);
    }

    public void fileDeleted(int wd, String rootPath, String name) {
        print("deleted " + rootPath + " : " + name);
    }

    public void fileCreated(int wd, String rootPath, String name) {
        print("created " + rootPath + " : " + name);
    }

    void print(String msg) {
        System.err.println(msg);
    }
}
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1 回答 1

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您的代码中有错误。;-)

代替

String path = System.getProperty("D:/Pathname");

经过

String path = "D:/Pathname";
于 2015-04-08T14:36:43.857 回答