Another attempt to diagnose a random test failure. (Cf. #1370.)

cli/src/test/java/hudson/cli/ConnectionTest.java

@@ -59,12 +59,14 @@ public class ConnectionTest extends Assert {
         t1.join(9999);
         t2.join(9999);
 
+        if (e != null) {
+            throw e;
+        }
+
         if (t1.isAlive() || t2.isAlive()) {
             t1.interrupt();
             t2.interrupt();
             throw new Error("thread is still alive");
         }
-
-        if (e!=null)    throw e;
     }
 }