您可以扩展SwingWorker以在创建时记录堆栈(或执行时,但之后需要创建另一个执行方法,因为它是最终的)。共创事业是相对昂贵,但这样你可能会想这样做,只有当调试(检查日志级别或类似)
import java.util.concurrent.ExecutionException;
import javax.swing.SwingWorker;
public abstract class TracedSwingWorker<T, V> extends SwingWorker<T, V> {
private final Exception cause;
public TracedSwingWorker() {
super();
this.cause = new Exception("TracedSwingWorker created at:");
}
@Override
protected final T doInBackground() throws Exception {
try {
return doWorkInBackground();
}
catch(Exception e) {
if(this.cause != null) {
Throwable cause = e;
while(cause.getCause() != null) {
cause = cause.getCause();
}
cause.initCause(this.cause);
}
throw e;
}
}
protected abstract T doWorkInBackground();
// just for testing
public static void main(String[] args) {
new TracedSwingWorker<Void, Void>() {
@Override
protected Void doWorkInBackground() {
throw new IllegalArgumentException("Exception in TracedSwingWorker!");
}
@Override
protected void done() {
try {
get();
}
catch (InterruptedException e) {
e.printStackTrace();
}
catch (ExecutionException e) {
e.printStackTrace();
}
}
}.execute();
}
}
打印:
java.util.concurrent.ExecutionException: java.lang.IllegalArgumentException: Exception in SwingWorker!
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
<snip>
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.Exception: SwingWorker created at:
at TracedSwingWorker.<init>(TracedSwingWorker.java:15)
at TracedSwingWorker$2.<init>(TracedSwingWorker.java:60)
at TracedSwingWorker.main(TracedSwingWorker.java:60)
其发起的SwingWorker工作的进展进一步的线程,因此目前在工作者作业中发生的一个有趣事件发生了,而在线程转储/调试器状态中,丢失了这些信息。 – 2012-08-02 15:41:51
我明白了。你知道火灾发生的原因吗?如果你这样做,你可以使用DynamicProxy装饰该方法来暂停或打印堆栈跟踪。 – Edmon 2012-08-02 19:28:55