We are happy to accept your patches and contributions to this project. There are just a few small guidelines you need to follow.
Contributions to this project must be accompanied by a Contributor License Agreement. You (or your employer) retain the copyright to your contribution; this simply gives us permission to use and redistribute your contributions as part of the project.
You generally only need to submit a CLA once, so if you've already submitted one (even if it was for a different project), you probably don't need to do it again.
Please file issues before doing substantial work; this will ensure that others don't duplicate the work and that there's a chance to discuss any design issues.
In general the changes in hotspot should be guarded by macro HOTSPOT_TARGET_CLASSLIB,
This ensures better clarity and makes it easier to backport upstream changes. For example:
#if HOTSPOT_TARGET_CLASSLIB == 8
// code that targets JDK8
#else
// Original JVM17 code
#endif
We use GitHub issues to track public bugs. Please ensure your description is clear and has sufficient instructions to be able to reproduce the issue.