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Draft improvements from assistant conversations: Java HTTP/2 + Spring Boot troubleshooting#326

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Draft improvements from assistant conversations: Java HTTP/2 + Spring Boot troubleshooting#326
mintlify[bot] wants to merge 1 commit into
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mintlify/35bb6672

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@mintlify mintlify Bot commented Jun 29, 2026

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Summary

Adds a troubleshooting section to the Java/Kotlin serving guide covering the h2 pool connection error: stream closed because of a broken pipe (META0003) error that users hit when running the SDK alongside Spring Boot.

Changes

  • docs/develop/java/serving.mdx: new "Troubleshooting HTTP/2 with Spring Boot" section that
    • explains why the error occurs (misaligned Netty version from Spring Parent POM / Gradle dependency management)
    • shows how to pin netty.version in Maven and Gradle
    • documents the disableBidirectionalStreaming workaround for both plain RestateHttpServer and the Spring Boot integration

Context

Recurring assistant questions referenced the META0003 broken-pipe error and asked for a Spring Boot fix. The fix was previously only present in the Java/Kotlin SDK v2.3.0 changelog, so future readers will now find it directly from the serving guide.

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Thank you for your submission, we really appreciate it. Like many open-source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution. You can sign the CLA by just posting a Pull Request Comment same as the below format.


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You can retrigger this bot by commenting recheck in this Pull Request. Posted by the CLA Assistant Lite bot.

@mintlify

mintlify Bot commented Jun 29, 2026

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restatedev 🟢 Ready View Preview Jun 29, 2026, 7:11 AM

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