chore: upgrade OpenTelemetry to 1.60.1 / agent 2.26.1#313
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Replace removed AgentInstrumentationConfig with the existing ConfigurationDefaults.configProperties for reading trace level configuration.
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mshabarov
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OTel 2.26.1's OkHttp sender resolves localhost to IPv6 (::1) first, but the mock server binds to IPv4 only. This caused all IT tests to fail with connection refused errors.
The OTel agent 2.26.1 bundles ByteBuddy 1.18.7 but the extension was compiled with 1.17.7. This version mismatch caused the ByteBuddy-transformed instrumentation classes to be incompatible at runtime, preventing all Vaadin instrumentations from matching.
OTel agent 2.26.1 requires META-INF/services/ files in extension JARs for ServiceLoader discovery. The @autoservice annotation processor was not generating these files, so they are now provided manually. Also fix muzzle compatibility: ConfigurationDefaults references OTel SDK classes (ConfigProperties, AutoConfigurationCustomizer) that are only in the agent classloader, not the app classloader. Muzzle now rejects these. Fix by: - Excluding ConfigurationDefaults from isHelperClass() - Using a BiFunction<String,String,String> bridge in Configuration to avoid direct references to OTel SDK types from helper classes
Replace volatile static BiFunction with a proper initialize() method and private fields. ConfigurationDefaults pushes resolved values during agent startup, and Configuration exposes them through clean getters.
heruan
approved these changes
Apr 8, 2026
github-project-automation
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Replace removed AgentInstrumentationConfig with the existing ConfigurationDefaults.configProperties for reading trace level configuration.