another attempt to speedup debugger tests

java/debugger/impl/src/com/intellij/debugger/engine/DebuggerManagerThreadImpl.java

@@ -55,19 +55,6 @@ public class DebuggerManagerThreadImpl extends InvokeAndWaitThread<DebuggerComma
     myDisposed = true;
   }
 
-  private static void waitForTerminateFutureToComplete(@NotNull Future<?> future) {
-    try {
-      LOG.debug("Waiting for " + future);
-      future.get(1, TimeUnit.MINUTES);
-    }
-    catch (InterruptedException | ExecutionException e) {
-      throw new RuntimeException(e);
-    }
-    catch (TimeoutException e) {
-      throw new RuntimeException("Termination request is still pending", e);
-    }
-  }
-
   @TestOnly
   public static DebuggerManagerThreadImpl createTestInstance(@NotNull Disposable parent, Project project) {
     return new DebuggerManagerThreadImpl(parent, project);
@@ -147,11 +134,18 @@ public class DebuggerManagerThreadImpl extends InvokeAndWaitThread<DebuggerComma
         }, terminateTimeoutMillis, TimeUnit.MILLISECONDS);
 
       // register on project instead of this because it would cause significant delays on each session termination otherwise
-      Disposer.register(myProject, () -> waitForTerminateFutureToComplete(future));
+      Disposer.register(myProject, () -> {
+        if (!future.cancel(true)) {
+          WorkerThreadRequest request = getCurrentThreadRequest();
+          if (request != null) {
+            request.requestStop();
+          }
+        }
+        // else scheduled future was de-scheduled successfully before starting
+      });
     }
   }
 
-
   @Override
   public void processEvent(@NotNull DebuggerCommandImpl managerCommand) {
     assertIsManagerThread();