[Bug 1808383] [NEW] Java 9+ multi-release jars are not supported in ant tasks

[Javier Armendariz]

Public bug reported:

Reproduced in release: Ubuntu 18.04.1 LTS
Version of ant used: 1.10.3-1ubuntu0.1

Having a multi-release jar with different .class files for Java 8 and
Java 9, when using this jar in a custom ant task and running in Java 9+,
the Java 8 class file will be loaded instead of the Java 9 one. This may
lead to errors when the older class uses a deprecated/removed API.

This can be easily reproduced using the code pushed to this repository:
https://github.com/katanagari7c1/ant-mrjar-support-test

This issue have already been reported in the ant bug tracker:
https://bz.apache.org/bugzilla/show_bug.cgi?id=62952

It has already been fixed and will be introduced in next release 1.10.6:
https://github.com/apache/ant/commit/593aff2d2ea52a025cfe7da32155216719029a7d

** Affects: ant (Ubuntu)
     Importance: Undecided
         Status: Confirmed

** Description changed:

  Reproduced in release: Ubuntu 18.04.1 LTS
  Version of ant used: 1.10.3-1ubuntu0.1
  
  Having a multi-release jar with different .class files for Java 8 and
  Java 9, when using this jar in a custom ant task and running in Java 9+,
  the Java 8 class file will be loaded instead of the Java 9 one. This may
  lead to errors when the older class uses a deprecated/removed API.
  
  This can be easily reproduced using the code pushed to this repository:
  https://github.com/katanagari7c1/ant-mrjar-support-test
  
- 
  This issue have already been reported in the ant bug tracker:
  https://bz.apache.org/bugzilla/show_bug.cgi?id=62952
  
- It has already been fixed and will be introduced in release 1.10.6:
+ It has already been fixed and will be introduced in next release 1.10.6:
  https://github.com/apache/ant/commit/593aff2d2ea52a025cfe7da32155216719029a7d

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to ant in Ubuntu.
https://bugs.launchpad.net/bugs/1808383

Title:
  Java 9+ multi-release jars are not supported in ant tasks

Status in ant package in Ubuntu:
  Confirmed

Bug description:
  Reproduced in release: Ubuntu 18.04.1 LTS
  Version of ant used: 1.10.3-1ubuntu0.1

  Having a multi-release jar with different .class files for Java 8 and
  Java 9, when using this jar in a custom ant task and running in Java
  9+, the Java 8 class file will be loaded instead of the Java 9 one.
  This may lead to errors when the older class uses a deprecated/removed
  API.

  This can be easily reproduced using the code pushed to this
  repository: https://github.com/katanagari7c1/ant-mrjar-support-test

  This issue have already been reported in the ant bug tracker:
  https://bz.apache.org/bugzilla/show_bug.cgi?id=62952

  It has already been fixed and will be introduced in next release 1.10.6:
  https://github.com/apache/ant/commit/593aff2d2ea52a025cfe7da32155216719029a7d

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ant/+bug/1808383/+subscriptions