Hi, Please review a patch[1] make jdk.internal.clang an upgradable module, this allows more flexibility on evolving the module. In this case, we have clang.jar as an automatic module, and jdk.internal.clang to require the clang module. [1] http://cr.openjdk.java.net/~henryjen/panama/upgradableClang/webrev/ Cheers, Henry