OpenAPITools / OpenAPITools/openapi-generator

[BUG] java-feign do not support tomcat9(jdk1.8)

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Issue: Bug
Dominant language
Java
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Description

org.apache.tomcat.util.bcel.classfile.ClassFormatException: Invalid byte tag in constant pool: 19

jackson 2.10.x contains module-info.class which could not be load in jvm8

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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

The report names java-feign, Tomcat 9 on JDK 8, and Jackson 2.10.x; start by reproducing the ClassFormatException in that environment and tracing which generated-client or dependency-loading entry point is involved. Identify the relevant generator test location, then verify that Java 8 and Tomcat 9 handle the generated output without the reported constant-pool error.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
api
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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