Issue with migrating to GWT 2.10

[Paul Stockley]

We are trying to migrate to GWT 2.10 from 2.08. We get this internal error 

Any idea how to further debug this? Our app works fine using SDM we just get this error when compiling for deployment.

Compiler options are:  -logLevel DEBUG -war ${webapp.dir} com.ocs.nirvana.Encasa -XnoclassMetadata -XnocheckCasts -generateJsInteropExports -style ${compile.style} -strict -optimize 7

[Michael Conrad]

a) Have you tried increasing heap space?
b) Are you compiling production in STRICT mode? (Strongly recommended.)
c) Are you running SDM in STRICT compile mode? (Strongly recommended.)

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[Michael Conrad]

Meh... I just saw the compile options below the empty pic.

[Paul Stockley]

I tried reducing the optimization level to 0, no difference. This has been a problem in the past. I need to turn on more debug info. I tried logLevel at ALL but it didn't really output anything new.

[Jens]

ASM is given a class file that has a newer byte code version than ASM supports. GWT 2.10 depends on ASM 9.2 and supports byte code up to Java 18. I am pretty sure you have an older ASM version on class path that came first or some Java 19+ classes.

-- J.

[Paul Stockley]

Thanks, that was the issue. We had an old 5.x version of ASM in the classpath. Updated to 9.2 and it now compiles.