Error while compiling

[marcust]

I'm trying to compile a example real life application with GraalVM, but I'm getting

error: should not reach here: Could not find field java.util.zip.ZipEntry.name on class sun.net.www.protocol.jar.URLJarFile$URLJarFileEntry
Error: Image building with exit status 1

I've no idea where to go from here.

Reproducible via https://github.com/marcust/jzenith/tree/experimental/graalvm

any of the jzenith-example fat jars, eg:

/opt/graalvm/bin/native-image  --verbose  --no-server  -Dio.netty.noUnsafe=true   -H:ReflectionConfigurationFiles=../../jzenith-graalvm-extras/reflectconfigs/netty.json  -H:+ReportUnsupportedElementsAtRuntime  -Dfile.encoding=UTF-8  -jar target/jzenith-example-mysql-0.1-SNAPSHOT-fat.jar 

[cstancu]

@marcust what is your Java version?

[marcust]

@cstancu ok, I was using OpenJDK 10 to build down to 8 Bytecode, that might not have been the best idea.

But now that I switched to OpenJDK 8 (I'm on Ubuntu, so I used update-java-alternatives) and I get the same result. I tried to set a JAVA_HOME but that also did not make any difference. I even completely removed the OpenJDK 10 installation, did also not change anything, still the same error.

To answer your question:

openjdk version "1.8.0_181"
OpenJDK Runtime Environment (build 1.8.0_181-8u181-b13-0ubuntu0.18.04.1-b13)
OpenJDK 64-Bit Server VM (build 25.181-b13, mixed mode)

GraalVM Version 1.0.0-rc6

I just realised that GraalVM is also a complete JDK, but even when I set my path fully to the GraalVM installation and build the jar with that I see the same error.

[cstancu]

Thanks for double-checking your Java version. I was able to reproduce this and at first look it seems to be an issue in our substitution mechanism.

[jhult]

I've hit the same issue when trying to use class.getClassLoader().getResource("myResourceInsideJar").

[cstancu]

@marcust the reported issue is fixed in adced00. It didn't make the cut for rc7 so it will be available in rc8 or you can build from source.
However trying to create the image for your example app runs into another issue: fatal error: java.lang.NoClassDefFoundError: org/fusesource/jansi/AnsiRenderer$Code. This issue is known and was reported in #656. The workaround is to modify the class path such that it includes the missing type.