Testsuite name: jdk_awt
Test name(s): java/awt/Mixing/MixingOnDialog.java
Product(s) tested: JDK 8u221b08
OS/architecture: Ubuntu 19.04

Reproducible: Always
Reproducible on machine: llg00tuk.uk.oracle.com ( Ubuntu 19.04) , llg00tuo.uk.oracle.com ( Ubuntu 19.04), llg00tug.uk.oracle.com (Ubuntu 18.04)

Is it a Regression: No, Fails for Previous GA Release JDK8u202b07

Is it a platform specific issue: Yes. Fails on Ubuntu but passes on llg00fza.uk.oracle.com (Oracle Linux 6.9)

Exception/Error from log:
test result: Failed. Execution failed: `main' threw exception: java.lang.RuntimeException: The lightweight component left behind the heavyweight one.