foens
commented
10 years ago I can confirm that I have also hit the assertion (group != nil) in j2objc 0.9.3. Mine happens in line 666 in Thread.m.
I also have code running with GCD in the background, and I also create a new thread down there somewhere. It seems to happen every time.
I have tested this on two simulators, iPhone 6 and iPhone 4S.
I use GCD (grand central dispatch) in my app to dispatch so stuff in the background
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0); dispatch_async(queue, ^{ [[self getEngine] doStuff]; });
The thing is that in my doStuff, so code, converted with j2objc is executed, and at some point in this code, a JavaLangThread object is initiated. And every now and then, i get the following:
Assertion failed: (group != nil), function -[JavaLangThread createWithJavaLangThreadGroup:withJavaLangRunnable:withNSString:withLong:withBoolean:], file /Users/tball/tmp/moe_git_clone_github_7854296660712344514/jre_emul/build_result/Classes/java/lang/Thread.m, line 253.
When I say every know and then, I mean that the first time I call doStuff, it works, and the second time, I get the Assertion failed exception thingy.
I'm currently on j2obc 0.9, but I had this problem also with j2objc 0.8.1