alef-backend-java 0.16.21

Java (Panama FFM) backend for alef
Documentation 
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    private MemorySegment handleName(MemorySegment userData) {
        try {
            return arena.allocateFrom(impl.name());
        } catch (Throwable e) { return MemorySegment.NULL; }
    }

    private MemorySegment handleVersion(MemorySegment userData) {
        try {
            return arena.allocateFrom(impl.version());
        } catch (Throwable e) { return MemorySegment.NULL; }
    }

    private int handleInitialize(MemorySegment userData, MemorySegment outError) {
        try { impl.initialize(); return 0; }
        catch (Throwable e) { writeError(outError, e); return 1; }
    }

    private int handleShutdown(MemorySegment userData, MemorySegment outError) {
        try { impl.shutdown(); return 0; }
        catch (Throwable e) { writeError(outError, e); return 1; }
    }