Method too large: XMTPModule.definition fails to compile on Android #777

Description

Building the Android app with @xmtp/react-native-sdk fails during compileDebugKotlin with a MethodTooLargeException. The generated definition { ... } method in XMTPModule.kt exceeds the JVM's 64KB bytecode-per-method limit.

Error

exception: exception: java.lang.RuntimeException: Error generating class file expo/modules/xmtpreactnativesdk/XMTPModule.class
(compiled from [...\node_modules@xmtp\react-native-sdk\android\src\main\java\expo\modules\xmtpreactnativesdk\XMTPModule.kt]):
Method too large: expo/modules/xmtpreactnativesdk/XMTPModule.definition ()Lexpo/modules/kotlin/modules/ModuleDefinitionData;

caused by: org.jetbrains.org.objectweb.asm.MethodTooLargeException:
Method too large: expo/modules/xmtpreactnativesdk/XMTPModule.definition ()Lexpo/modules/kotlin/modules/ModuleDefinitionData;
at org.jetbrains.org.objectweb.asm.MethodWriter.computeMethodInfoSize(MethodWriter.java:2088)
at org.jetbrains.org.objectweb.asm.ClassWriter.toByteArray(ClassWriter.java:512)

Environment

• @xmtp/react-native-sdk: 5.7.0
• Kotlin: 2.1.20
• KSP: 2.1.20-2.0.1
• Android buildTools: 36.0.0
• compileSdk / targetSdk: 36
• minSdk: 24
• NDK: 27.1.12297006
• Expo SDK: 57.0.16
• React Native: 0.86.2
• OS: Windows
• Build command: npx expo run:android

Steps to reproduce

1. Install @xmtp/react-native-sdk@5.7.0 in an Expo project.
2. Run npx expo run:android.
3. Build fails at :xmtp-react-native-sdk:compileDebugKotlin with the above error.

Expected behavior

The module should compile successfully.

Additional notes

The definition { } block in XMTPModule.kt appears to have grown large enough (with the full set of exported functions/events across client, conversations, groups, messages, streaming, etc.) that the compiled definition() method now exceeds the JVM's 64KB method size limit. Splitting the exported functions into multiple smaller registered Function(...) blocks, or delegating each function body to a separate private method (rather than inlining logic directly in the DSL), would likely resolve this.

Ran ./gradlew clean and ./gradlew --stop before retrying — same failure.