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[tests] Use Android.Util.Log in JnienvTest.ThreadReuse callback #11614

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Merged
jonathanpeppers merged 2 commits into from
Jun 10, 2026
+12 −3
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[tests] Use Android.Util.Log in JnienvTest.ThreadReuse callback #11614

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[tests] Use Android.Util.Log in JnienvTest.ThreadReuse callback
jonathanpeppers Jun 3, 2026
b215b89
Merge branch 'main' into jonathanpeppers/tests-threadreuse-log-fix
jonathanpeppers Jun 9, 2026
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15 changes: 12 additions & 3 deletions tests/Mono.Android-Tests/Mono.Android-Tests/Java.Interop/JnienvTest.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -79,14 +79,23 @@ public void ThreadReuse ()
{
Java.Lang.JavaSystem.LoadLibrary ("reuse-threads");
CB cb = (env, instance) => {
Console.WriteLine ("CrossThreadObjectInteractions: JNIEnv.Handle={0} env={1}, instance={2}",
// NOTE: this callback runs on a raw native pthread spawned by
// libreuse-threads.so and attached to the JVM. NUnit 3 replaces
// Console.Out with a TextCapture that resolves the current
// TestExecutionContext on every write; from a thread NUnit doesn't
// know about it tries to manufacture an AdhocContext and NREs in
// MethodWrapper.get_Name, which SIGABRTs the entire process and
// causes the test host to report "0 tests ran" for the assembly.
// Route diagnostics through Android.Util.Log instead.
Android.Util.Log.Info ("ThreadReuse",
"CrossThreadObjectInteractions: JNIEnv.Handle={0} env={1}, instance={2}",
JNIEnv.Handle.ToString ("x"), env.ToString ("x"), instance.ToString ("x"));
if (env != JNIEnv.Handle)
Console.WriteLine ("GOOD: they should differ (on the second call)....");
Android.Util.Log.Info ("ThreadReuse", "GOOD: they should differ (on the second call)....");
if (instance == IntPtr.Zero)
return;
using (var o = Java.Lang.Object.GetObject<Java.Lang.Object>(env, instance, JniHandleOwnership.DoNotTransfer)) {
Console.WriteLine ("CrossThreadObjectInteractions: o.Handle={0}", o.Handle.ToString ("x"));
Android.Util.Log.Info ("ThreadReuse", "CrossThreadObjectInteractions: o.Handle={0}", o.Handle.ToString ("x"));
}
};
rt_invoke_callback_on_new_thread (cb);
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