source code and compiled class is inconsistent

[98DE9E1F]

What version of gRPC-Java are you using?

1.55.1

What is your environment?

mac open jdk 11

What did you expect to see?

in source code type variable is T extends AbstractManagedChannelImplBuilder

public abstract class AbstractManagedChannelImplBuilder
    <T extends AbstractManagedChannelImplBuilder<T>> extends ManagedChannelBuilder<T> 

What did you see instead?

when i decompile class , i found the type variable change to

public abstract class AbstractManagedChannelImplBuilder
  <T extends ManagedChannelBuilder<T>> extends ManagedChannelBuilder<T> {

Steps to reproduce the bug

just compare source.jar and jar in release 1.55.1

[ejona86]

This is because of a ".class file hack" mentioned in the v1.36.0 release notes. I have been wanting us to remove it, as enough time has passed and it impacts the build in a weird way, but we've been busy doing other things. The goal is to make the source code look like the decompiled code you showed, re-doing what we attempted in v1.33.0 (which was reverted in v1.33.1).