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capnproto / capnproto-rust

Cap'n Proto for Rust
MIT License
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calculator example fails with java server: Cannot read capability pointer without capTable #477

Closed bedwards closed 2 months ago

bedwards commented 10 months ago

Hi, is it possible to use a rust capnp-rpc client with a java server? I tried using the calculator example, but I get an exception on the java server (complaining the the rust client is broken, missing capTable.)

 org.capnproto.RpcException
 Cannot read capability pointer without capTable.
    at org.capnproto.RpcException.failed(RpcException.java:28)
    at org.capnproto.Capability.newBrokenClient(Capability.java:650)
    at org.capnproto.Capability.newBrokenCap(Capability.java:638)
    at org.capnproto.WireHelpers.readCapabilityPointer(WireHelpers.java:1452)
git@github.com:capnproto/capnproto-rust.git
commit b85e041a1852cd4b3a7d7860ef4fbe16369c73e9 (HEAD -> master, tag: capnp-v0.19.1, origin/master, origin/HEAD)
git@github.com:vaci/capnproto-java-rpc.git
commit 1a36fd894d163fc4279fb8b77a1bc4dc19c8182f (HEAD -> master, origin/master, origin/HEAD)

The schema are identical except the java-specific stuff...

 @0x85150b117366d14b;

-using Java = import "/capnp/java.capnp";
-$Java.package("org.capnproto.examples");
-$Java.outerClassname("Calc");
-
 interface Calculator {
dwrensha commented 10 months ago

I don't know very much about capnproto-rpc-java, which lives in a different repo: https://github.com/vaci/capnproto-java-rpc You might try reporting this issue there.

dwrensha commented 2 months ago

Closing, because this looks to me like a bug in the java RPC implementation.