AppDynamics Agent v25.6.0-37159 Fails to Unzip During Staging – Invalid ZIP Format

[vigneshsubbaram]

We encountered an issue while staging a Java application using the Java Buildpack v4.73.0. The staging process failed when the buildpack attempted to download and expand the AppDynamics agent (v25.6.0-37159) from the default community source:

 -----> Downloading AppDynamics Agent 25.6.0_37159 from https://download.run.pivotal.io/appdynamics/appdynamics-25.6.0-37159.tar.gz (1.2s)
   Expanding AppDynamics Agent to .java-buildpack/app_dynamics_agent
   Command 'unzip -qq /tmp/app/c8a531acf43f86d1ccc49dedd4415adda09f6ed7f6bd7dac58e50e1966bc95ec.cached -d /tmp/app/.java-buildpack/app_dynamics_agent 2>&1' has failed
   STDOUT: [/tmp/app/c8a531acf43f86d1ccc49dedd4415adda09f6ed7f6bd7dac58e50e1966bc95ec.cached]
   End-of-central-directory signature not found.  Either this file is not
   a zipfile, or it constitutes one disk of a multi-part archive.  In the
   latter case the central directory and zipfile comment will be found on
   the last disk(s) of this archive.
   unzip:  cannot find zipfile directory in one of /tmp/app/c8a531acf43f86d1ccc49dedd4415adda09f6ed7f6bd7dac58e50e1966bc95ec.cached or
   /tmp/app/c8a531acf43f86d1ccc49dedd4415adda09f6ed7f6bd7dac58e50e1966bc95ec.cached.zip, and cannot find /tmp/app/c8a531acf43f86d1ccc49dedd4415adda09f6ed7f6bd7dac58e50e1966bc95ec.cached.ZIP, period.
   STDERR:
   [Buildpack]                      ERROR Finalize failed with exception RuntimeError
   Failed to compile droplet: Failed to run finalize script: exit status 1
   Exit status 223
Error staging application: App staging failed in the buildpack compile phase

It appears this version of the AppDynamics agent was recently added or updated in the buildpack's AppDynamics index.

Could the team please verify the validity of the appdynamics-25.6.0-37159 release artifact or roll back to a previously working version? Happy to help debug further if needed.