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+ Jandex 3.1.3
+Today, we announce the release of Jandex 3.1.3. +This release contains several small fixes and improvements.
+The AnnotationInstance.equivalentTo() method was added that establishes the notion of annotation equivalence.
+Two annotation instances are equivalent if they have the same name (that is, the same annotation interface) and the same members.
+The target of the annotation is ignored (unlike the equals() method).
The MethodInfo.isStaticInitializer() method was added to distinguish the special <clinit> methods (similarly to existing isConstructor(), which distinguishes the special <init> methods).
Serialization compatibility with Jandex 2 was restored. +Jandex 3 added a new kind of types, type variable references, and at that time, the index serialization code was not adjusted properly. +Therefore, if Jandex 3 was asked to write an index of an older version, for consumption by Jandex 2, the result in fact was not readable by Jandex 2. +The fix is fortunately simple, because what Jandex 3 represents as a type variable reference, Jandex 2 always represents as an unresolved type variable. +So when emitting an index for Jandex 2, Jandex 3 can just serialize type variable references as unresolved type variables. +(Note that Jandex 3 may still produce unresolved type variables, for example when indexing an incomplete class path.) +Thanks Andrey Manzharov for the reproducer!
+The Jandex Maven plugin now supports setting the index version that should be produced. +That way, you can upgrade your Jandex version yet keep the persistent index readable by older Jandex versions. +Of course, if the upgraded Jandex has a newer persistent index format that includes more information, the older version will not contain the new information. +Thanks Andrey Manzharov for the pull request!
+The jandex-jar goal of the Jandex Maven plugin was improved to not omit directory entries in the resulting JAR.
+Thanks Hui Wang for the pull request!
Finally, multiple places in Jandex were changed to slightly reduce allocations.
+Instead of allocating a regular java.util.ArrayList and then an immutable wrapper, an immutable array-backed List implementation is used directly.
If you experience any troubles, or if you have any ideas for Jandex improvements, please file an issue.
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