Good morning folks,
I'm one of the maintainers of the Linux From Scratch project, and we're
trying to update to FOP 2.10 for the security update (CVE-2024-28168).
We are currently shipping Java 22.0.2, and are in the process of
upgrading to 23.0.1.
While trying to build the package, we're getting the following build error:
[javac]
/sources/fop-2.10/fop-core/src/main/java/org/apache/fop/layoutmgr/KnuthSequence.java:147:
error: removeLast() in KnuthSequence cannot implement removeLast()
in List
[javac] public ListElement removeLast() {
[javac] return type ListElement is not compatible with T
[javac] where E,T are type-variables:
[javac] E extends Object declared in interface List
[javac]
/sources/fop-2.10/fop-core/src/main/java/org/apache/fop/layoutmgr/KnuthSequence.java:137:
error: getLast() in KnuthSequence cannot implement getLast() in List
[javac] public ListElement getLast() {
[javac] return type ListElement is not compatible with T
[javac] where E,T are type-variables:
[javac] E extends Object declared in interface List
[javac]
/sources/fop-2.10/fop-core/src/main/java/org/apache/fop/layoutmgr/BlockKnuthSequence.java:28:
error: methods removeLast() from KnuthSequence and removeLast() from
ArrayList are inherited with the same signature
[javac] public class BlockKnuthSequence extends KnuthSequence {
[javac] ^
[javac] where E is a type-variable:
We're using the following instructions to build fop:
https://linuxfromscratch.org/blfs/view/systemd/pst/fop.html
I've looked into it a bit and I think
https://github.com/apache/xmlgraphics-fop/commit/3d750f3289559f3896a61ab694d7f1a4481d720b
Do you folks have any ideas on what we can do to resolve this?
Thank you for your time!
Douglas R. Reno
Linux From Scratch
