NullPointerException in McpClientSession #605
Description
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Bug description
In enola-dev/enola#1862, I've run into:
java.lang.NullPointerException: data
at java.base/java.util.Objects.requireNonNull(Objects.java:259)
at reactor.core.publisher.FluxHandle$HandleSubscriber.next(FluxHandle.java:251)
at io.modelcontextprotocol.spec.McpClientSession.lambda$sendRequest$12(McpClientSession.java:280)
at reactor.core.publisher.FluxHandle$HandleSubscriber.onNext(FluxHandle.java:113)
at reactor.core.publisher.SerializedSubscriber.onNext(SerializedSubscriber.java:99)
at reactor.core.publisher.FluxTimeout$TimeoutMainSubscriber.onNext(FluxTimeout.java:181)
at reactor.core.publisher.MonoCreate$DefaultMonoSink.success(MonoCreate.java:176)
I guess that this means that this is null?
Environment
0.14.1
Steps to reproduce
Unfortunately I'm unable to reproduce it locally even myself, but I am consistently seeing this on a failing CI build.
Expected behavior
Clear error message instead of NPE.
Minimal Complete Reproducible example
N/A
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