Update bytebuddy to ver1.17 to support Java 25

[saito-yu-ppcd]

Hi team, I'd like to request to update bytebuddy version to ver 1.17 to support Java 25.

Describe the bug
When deploying a Java pod which uses Java 25 and contains this agent, we got the following error:

[otel.javaagent] DEBUG io.opentelemetry.javaagent.tooling.AgentInstaller$TransformLoggingListener - Failed to handle java.util.stream.SortedOps for transformation on class loader null
java.lang.IllegalArgumentException: Java 25 (69) is not supported by the current version of Byte Buddy which officially supports Java 24 (68) - update Byte Buddy or set net.bytebuddy.experimental as a VM property

Steps to reproduce
When we deploy pods based on Java 25 and install this agent to the pods, we get this error.

What did you expect to see?
This agent works properly.

What did you see instead?
We got the above error.

Additional context
According to the bytebuddy official page, it supports Java 25 with ver 1.17 and above.
https://github.com/raphw/byte-buddy?tab=readme-ov-file#java-version-compatibility
If this agent doesn't support Java 25 and support only specified Java versions, please tell me that.
I also checked OpenTelemetry for Java documentation page, but there is no supported Java version specification, too.
Thank you!

[srprash]

Hi @saito-yu-ppcd
The ADOT Java agent itself does not directly depend on ByteBuddy. ADOT Java is a customization of OTel's Java agent that uses ByteBuddy.
ADOT doesn't always track the latest OTel version and it may be possible that the current latest ADOT version (2.20.0) depends on an OTel version that has an older version of ByteBuddy. I will take a look into that.

What is the version of ADOT Java agent you're using?

[srprash]

• ADOT v2.20.0 depends on OTel v2.20.1 : https://github.com/aws-observability/aws-otel-java-instrumentation/releases/tag/v2.20.0
• OTel v2.20.1 depends on bytebuddy v1.17.7 : https://github.com/open-telemetry/opentelemetry-java-instrumentation/blob/7eab9880de7205e7cae5b3c229ce5a2c33ad7b1d/dependencyManagement/build.gradle.kts#L41
• bytebuddy 1.17 supports Java 25 : https://github.com/raphw/byte-buddy?tab=readme-ov-file#java-version-compatibility

As per the above, it seems that ADOT should support Java 25.

[srprash]

Confirmed by examining the latest adot jar

~ unzip -l /Users/srprash/aws-opentelemetry-agent.jar | grep "META-INF" | grep -i "byte-buddy"
        0  10-31-2025 22:26   META-INF/licenses/byte-buddy-dep-1.17.7.jar/
        0  10-31-2025 22:26   META-INF/licenses/byte-buddy-dep-1.17.7.jar/META-INF/
    10140  02-01-1980 00:00   META-INF/licenses/byte-buddy-dep-1.17.7.jar/META-INF/LICENSE
      570  02-01-1980 00:00   META-INF/licenses/byte-buddy-dep-1.17.7.jar/META-INF/NOTICE

[srprash]

Did a quick sanity check with an instrumented java 25 lambda function and was able to see traces produced by ADOT (v2.20.0) just fine. I don't see any ByteBuddy version related issues in my function logs.

@saito-yu-ppcd Please provide more details about the issue to investigate further.

[saito-yu-ppcd]

@srprash Hi, sorry for the late reply. I missed the notification from github.

What is the version of ADOT Java agent you're using?

Our dockerfile contains the following line, and this error caused at the beginning of the 12/2025.

RUN curl -L -o /opt/opentelemetry/aws-opentelemetry-agent.jar https://github.com/aws-observability/aws-otel-java-instrumentation/releases/latest/download/aws-opentelemetry-agent.jar

So I think we used v2.20.0.

ADOT doesn't always track the latest OTel version and it may be possible that the current latest ADOT version (2.20.0) depends on an OTel version that has an older version of ByteBuddy. I will take a look into that.
Confirmed by examining the latest adot jar

Thank you for checking the ByteBuddy version. so if we're using ADOT agent v2.20.0, it depends on the ByteBuddy 1.17 and it should support Java 25.
I will look into our environment again, and update this issue. thank you for your support.

[thpierce]

@saito-yu-ppcd closing this issue, please feel free to reopen with more details if needed.