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ExceptionInInitializerError thrown in Eclipse OpenJ9 JVM

See original GitHub issue

When trying to run tests using Eclipse OpenJ9, I get this error:

java.lang.ExceptionInInitializerError
        at com.bar.foo.<clinit>(FooTest.java:24)
Caused by: java.lang.IllegalStateException: Failed to load interface org.mockito.plugins.MockMaker implementation declared in java.lang.ClassLoader$CompoundEnumeration@626d5804
Caused by: java.lang.reflect.InvocationTargetException
Caused by: org.mockito.exceptions.base.MockitoInitializationException:

Could not initialize inline Byte Buddy mock maker.

It appears as if your JDK does not supply a working agent attachment mechanism.
Java               : 11
JVM vendor name    : Eclipse OpenJ9
JVM vendor version : openj9-0.23.0
JVM name           : Eclipse OpenJ9 VM
JVM version        : 11.0.9+11
JVM info           : JRE 11 Windows 10 amd64-64-Bit Compressed References 20201022_795 (JIT enabled, AOT enabled)
OpenJ9   - 0394ef754
OMR      - 582366ae5
JCL      - 3b09cfd7e9 based on jdk-11.0.9+11
OS name            : Windows 10
OS version         : 10.0

Caused by: java.lang.IllegalStateException: Could not self-attach to current VM using external process

I tried running the same test using Oracle’s OpenJDK 11 implementation and it ran successfully.

I’m not familiar with Byte Buddy at all, so I don’t know how to fix it myself. But I really think there’s something wrong with the implementation, because my tests are able to run on a specific JVM but not in other.

Issue Analytics

State:
Created 2 years ago
Comments:11 (6 by maintainers)

Top GitHub Comments

1reaction

raphwcommented, Sep 25, 2021

Interesting finding. It extracts the process id and then uses sn official API to connect to this process. To me this indicates that the there’s an issue in J9.

0reactions

mateusbandeiraacommented, Oct 1, 2021

Closing this issue since it is an OpenJ9 bug rather than a ByteBuddy problem.

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