if a subtask is aborted, all the executors should be aborted.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@34628 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/java/hudson/model/Executor.java

@@ -149,6 +149,8 @@ public class Executor extends Thread implements ModelObject {
                     } catch (InterruptedException e) {
                         workUnit.context.abort(e);
                         continue;
+                    } finally {
+                        workUnit.setExecutor(null);
                     }
                 }
             }

core/src/main/java/hudson/model/queue/WorkUnitContext.java

@@ -58,6 +58,11 @@ public final class WorkUnitContext {
 
     private List<WorkUnit> workUnits = new ArrayList<WorkUnit>();
 
+    /**
+     * If the execution is aborted, set to non-null that indicates where it was aborted.
+     */
+    private volatile Throwable aborted;
+
     public WorkUnitContext(BuildableItem item) {
         this.item = item;
         this.task = item.task;
@@ -134,7 +139,10 @@ public final class WorkUnitContext {
     /**
      * When one of the work unit is aborted, call this method to abort all the other work units.
      */
-    public void abort(Throwable cause) {
+    public synchronized void abort(Throwable cause) {
+        if (cause==null)        throw new IllegalArgumentException();
+        if (aborted!=null)      return; // already aborted    
+        aborted = cause;
         startLatch.abort(cause);
         endLatch.abort(cause);