Calls to static interface methods compile on Java 8 but not on Java 9 because of a new bytecode restriction. As the usage of static interface methods increases, this problem will manifest more. I ran into it while using the AWS SDK (2.0 preview) which makes extensive usage of these methods.
The original ticket had a repro here: https://github.com/ztellman/java9-failure
Cause: The JVM spec mandates that invocations to static interface methods refer to an InterfaceMethodref entry in the constant pool rather than simply to a Methodref. See https://docs.oracle.com/javase/specs/jvms/se9/html/jvms-5.html#jvms-126.96.36.199, describing the resolution rules for Methodrefs:
Bytecode verification was tightened in Java 9 to check for this: https://bugs.openjdk.java.net/browse/JDK-8145148
ASM 5.1+ provide support for this.
Approach: First, upgrade to min Java 8 and latest ASM (6.2 right now) - this is now covered in ticket CLJ-2363. The patch here assumes CLJ-2363 has been completed as a baseline. The change here calls the newer ASM method to gen a static method call with awareness of static interface methods.
JDK 9 or higher
The patch in v2-0001 is already based on the ASM-6.1 branch but not the final release. Can bump it with the script in the commit comment.
v3*.patch updates to ASM 6.2 final
Marking as incomplete pending dependent on pulling the jdk 8 stuff out into CLJ-2363.
Squashed remaining patches (others in CLJ-2363) and screened.