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Description
Describe the bug
I see this error when running a Maven build with the JaCoCo code coverage plugin, Java 21, and AWS SDK v2 version 2.31.76
, with the AWS SDK v2 SSM dependency in classpath.
java.lang.instrument.IllegalClassFormatException: Error while instrumenting software/amazon/awssdk/services/ssm/DefaultSsmClient with JaCoCo 0.8.13.202504020838/78d5eff`
Regression Issue
- Select this option if this issue appears to be a regression.
Expected Behavior
No error emitted
Current Behavior
Instrumentation error emitted in maven build, see https://github.com/jpalomaki/aws-sdk-java-v2-ssm-jacoco-sscce/actions/runs/16073837387/job/45364298935#step:4:41
Reproduction Steps
https://github.com/jpalomaki/aws-sdk-java-v2-ssm-jacoco-sscce
Possible Solution
Can the generated code be modularized better (to not create very large classes)?
Additional Information/Context
The issue can be worked around by adding an exclusion to the JaCoCo plugin like so:
<configuration>
<excludes>
<exclude>software/amazon/awssdk/services/ssm/DefaultSsmClient</exclude>
</excludes>
</configuration>
However, I submitted this issue because I felt that it might be better to optimize the generated code, if possible.
AWS Java SDK version used
2.31.76
JDK version used
openjdk version "21.0.5" 2024-10-15 LTS (corretto)
Operating System and version
Ubuntu 24.04 and macOS 15.5