fix: #662

2020-02-05 14:36:44 +08:00
parent 5a8446524a
commit bdee33456b
2 changed files with 78 additions and 3 deletions
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/task/AsyncTaskExecutor.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/task/AsyncTaskExecutor.java
@@ -87,7 +87,12 @@ public final class AsyncTaskExecutor extends TaskExecutor {

    @Override
    public synchronized void cancel() {
-        // AsyncTaskExecutor does not support cancellation.
+        if (future == null) {
+            throw new IllegalStateException("Cannot cancel a not started TaskExecutor");
+        }
+
+        cancelled.set(true);
+        future.cancel(true);
    }

    private CompletableFuture<Exception> executeTasks(Collection<Task<?>> tasks) {