matthiasblaesing commented on pull request #3204:
URL: https://github.com/apache/netbeans/pull/3204#issuecomment-940371248
Debugging is broken again - another corner case I suppose. Take this trivial
code:
```java
import java.util.ArrayList;
import java.util.List;
public class ThreadingTest {
public static void main(String[] args) {
List<Thread> ts = new ArrayList<>();
for(int i = 0; i < 10; i++) {
ts.add(new T());
}
for(Thread t: ts) {
t.start();
}
}
static class T extends Thread {
@Override
public void run() {
System.out.println("L1");
System.out.println("L2");
System.out.println("L3");
System.out.println("L4");
}
}
}
```
Place a beakpoint on line 24 (the one, that outputs "L3"). Configure the
breakpoint to suspend all threads:
and run it with "Debug file". The debugging control does not work anymore:
At the time of the screenshot I would have expected line 24 to be
highlighted, the debugging tab showing three threads (the first started, the
cleaner and the main thread). I would expect all threads to be suspended. I
would expect the "Playbutton" to become response. I would expect the stop
button to stop the debugging session and let the programm run to completion.
Nothing of this works. In conclusion: Debugging with "Suspend all threads"
is broken.
How shall we go on? Shall I directly create a revert commit or can this be
fixed quickly?
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