Problem running a JNLP file with Java Corretto and Openwebstart

Based on the information provided, I can't identify a specific documented issue between Amazon Corretto and OpenWebStart for running JNLP files.

Amazon Corretto is a production-ready distribution of OpenJDK that's compatible with the Java SE standard and can be used as a drop-in replacement for other JDKs. However, there are a few important considerations:

1. JavaFX is not included by default with Amazon Corretto. If your JNLP application requires JavaFX components, this could be causing the crash. You would need to download JavaFX separately.

2. Amazon Corretto 21 is a relatively recent release, and there might be compatibility issues with certain applications or frameworks that haven't been fully tested with it.

To troubleshoot this issue, you could try:

1. Using an earlier LTS version of Corretto (like Corretto 17 or Corretto 11) to see if the issue persists
2. Checking if your application requires JavaFX and ensuring it's properly configured
3. Looking for more detailed logs by configuring Java's logging properties
4. Verifying that all security permissions required by the applet are properly set

Without more specific error information, it's difficult to pinpoint the exact cause of the crash.
Sources
Amazon Corretto FAQs
Production-ready distribution of OpenJDK – Amazon Corretto – AWS