OpenJDK 25 + bigloo 4.7a problems

[jamesjer]

I am trying to update the Fedora bigloo package to version 4.7a (it is currently on 4.6a). Fedora Rawhide currently has OpenJDK 25. So there are 2 variables: an updated bigloo version and an updated JDK. I applied the recent commit to handle OpenJDK versions greater than 20. However, I am seeing two types of failures when building the Java tests. The first looks like this:

Error: LinkageError occurred while loading main class main
	java.lang.ClassFormatError: Duplicated LocalVariableTable attribute entry for 'BgL_naza2za2' in class file main
*** pthread ********** 

The second looks like this:

Error: Unable to initialize main class recette
Caused by: java.lang.VerifyError: Expecting a stackmap frame at branch target 12
Exception Details:
  Location:
    recette.main([Ljava/lang/String;)V @0: aload_0
  Reason:
    Expected stackmap frame at this location.
  Bytecode:
    0000000: 2ab8 0186 c001 88b8 018c 57b1 b801 90b1
    0000010:                                        
  Exception Handler Table:
    bci [0, 12] => handler: 12
*** fthread ********** 

Am I building the Java code incorrectly somehow? Any thoughts appreciated.

[manuel-serrano]

I have been working very actively on the JVM backend these last months and there are plenty of changes and improvements to come.
Unfortunately, you will have to wait a little bit because most of these changes will be included only in 5.0.0, which will follow 4.7b.

That said, you could give the coming version 4.7b (https://www-sop.inria.fr/indes/fp/Bigloo/download/bigloo-unstable.tar.gz) a try because on my Debian/testing setting, which uses Java 25, all the tests pass.