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Posted to commits@graphar.apache.org by "yangxk1 (via GitHub)" <gi...@apache.org> on 2025/06/10 08:32:21 UTC
[I] bug(java): Java CI failing due to outdated libarrow, LLVM install failure, and c++ API mismatches, etc. [incubator-graphar]
yangxk1 opened a new issue, #704:
URL: https://github.com/apache/incubator-graphar/issues/704
### Describe the bug, including details regarding any error messages, version, and platform.
The following are some potential causes of the failing.
1. Outdated `libarrow` version
The java CI uses version 14, but in c++ CI it's 17.
2. LLVM installation fails on ubuntu-latest via apt
There's an issue installing LLVM via apt on ubuntu-latest. As a temporary workaround, we can switch to ubuntu-22.04, or build LLVM from source.
3. GraphAr Java library depends on C++ library v0.10.0 with known bugs
The Java bindings were built against C++ library version v0.10.0, which contains a bug (#515). We can switch to v0.12.0 or main branch
4. Namespace inconsistency between Java and C++ libraries
Java uses namespace : `gar` / `GraphArchive`
C++ uses namespace: `graphar`
5. Method signature mismatches between Java and C++
Some method definitions differ between the two language bindings.
For example:
In Java library, the first parameter of the `EdgeIter` constructor is `EdgeInfo`.
In C++ library, it is `std::shared_ptr<EdgeInfo>`
### Component(s)
Java
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Re: [I] bug(java): Java CI failing due to outdated libarrow, LLVM install failure, and c++ API mismatches, etc. [incubator-graphar]
Posted by "yangxk1 (via GitHub)" <gi...@apache.org>.
yangxk1 closed issue #704: bug(java): Java CI failing due to outdated libarrow, LLVM install failure, and c++ API mismatches, etc.
URL: https://github.com/apache/incubator-graphar/issues/704
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Re: [I] bug(java): Java CI failing due to outdated libarrow, LLVM install failure, and c++ API mismatches, etc. [incubator-graphar]
Posted by "yangxk1 (via GitHub)" <gi...@apache.org>.
yangxk1 commented on issue #704:
URL: https://github.com/apache/incubator-graphar/issues/704#issuecomment-2967061317
> Hi [@yangxk1](https://github.com/yangxk1) , I think it's hard to maintaining the gap between C++ and Java bindings. May be we should deprecate the FFI implementation and turn to pure Java implementation?
I agree with you! @Thespica . We should aim for a pure Java library.
However, I also think it's important to keep the current repository in a usable state for now.
I'm already working on fixing this issue, and I expect to have results within the next couple of days.
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Re: [I] bug(java): Java CI failing due to outdated libarrow, LLVM install failure, and c++ API mismatches, etc. [incubator-graphar]
Posted by "yangxk1 (via GitHub)" <gi...@apache.org>.
yangxk1 commented on issue #704:
URL: https://github.com/apache/incubator-graphar/issues/704#issuecomment-2961657600
The gap between the C++ and Java library are recorded in issue #272
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Re: [I] bug(java): Java CI failing due to outdated libarrow, LLVM install failure, and c++ API mismatches, etc. [incubator-graphar]
Posted by "Thespica (via GitHub)" <gi...@apache.org>.
Thespica commented on issue #704:
URL: https://github.com/apache/incubator-graphar/issues/704#issuecomment-2966891602
Hi @yangxk1 , I think it's hard to maintaining the gap between C++ and Java bindings. May be we should deprecate the FFI implementation and turn to pure Java implementation?
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