Error when running on Java 21-ea #310
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I've downloaded https://search.maven.org/artifact/com.blazebit/blaze-persistence-integration-graphql-spqr/1.6.8/jar and trying to index it with these JDKs: They both seem to work just fine (as in, they write an index file and don't fail). Could you please provide a JAR on which indexing fails? Alternatively, a stack trace might be enough ( |
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The problem appears when the module is compiled with the Java 21 class file version. I guess it doesn't really matter what the content of the JAR file is, as long as there is one class file compiled with the latest version. |
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So far, I reproduced this issue locally with Azul Zulu JDK 21-ea build 22. Here is the JAR (added .zip to the end because GitHub doesn't allow uploading JAR files): Here is the full error: |
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No, that doesn't seem to reproduce. Do you have a Maven project I can clone and build myself? https://github.com/Blazebit/blaze-persistence doesn't seem to use Jandex 3.1.1 anywhere 🤔 |
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I do. Checkout the contents of this PR and first build with It will fail at that module, but then you can build just that single module by appending |
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And don't forget to make sure that your |
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OK, reproduced it now. Thanks! |
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OK, the issue is caused by the performance improvements made in Jandex 3.1.0. As part of those improvements, the hash table used for object interning was refactored to be more type-safe (with one subclass of the hash table per interned type), but the |
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I kept digging, because while my last comment is correct, there must be more to it, and indeed I found a really strange behavior of JDK 21. Say I have these 2 classes: public class Foo {
public Foo(String... strings) {
}
}public class Bar {
public Foo getFoo() {
return new Foo() {};
}
}Then compiling them using JDK 8, 11, 17: JDK 21-ea: That is, |
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Aside: if |
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For historical reference, here are JDK issues that explain the differences in bytecode demonstrated above: |
Trying to run the 3.1.1 Maven plugin with Java 21-ea, I get the following error:
Any idea what the issue could be?
Apache Maven 3.6.3 (cecedd343002696d0abb50b32b541b8a6ba2883f)
Maven home: /home/runner/.m2/wrapper/dists/apache-maven-3.6.3-bin/1iopthnavndlasol9gbrbg6bf2/apache-maven-3.6.3
Java version: 21-ea, vendor: Azul Systems, Inc., runtime: /opt/hostedtoolcache/Java_Zulu_jdk/21.0.0-ea.22/x64
Default locale: en, platform encoding: UTF-8
OS name: "linux", version: "5.15.0-1037-azure", arch: "amd64", family: "unix"
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