Pattern.compile() called on every invocation of handleSpecificationEntries

[elharo]

Affected version: all

Description:

MavenArchiver.handleSpecificationEntries() at line 422 compiles a regex pattern every time it is called:

Matcher matcher = Pattern.compile("([0-9]+\\.[0-9]+)(.*?)").matcher(version);

This pattern is constant and should be a private static final Pattern field. The current implementation compiles it on every manifest creation, creating unnecessary GC pressure.

Fix: Extract to a static field.