Fix using WithSpan annotation in java6 class #2699
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laurit
requested review from
anuraaga,
iNikem,
jkwatson,
mateuszrzeszutek,
pavolloffay,
trask and
tylerbenson
as code owners
ghost
reviewed
Apr 2, 2021
mateuszrzeszutek
approved these changes
Apr 2, 2021
...n/opentelemetry-annotations-1.0/javaagent/src/test/groovy/WithSpanInstrumentationTest.groovy
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...ation/opentelemetry-annotations-1.0/javaagent/opentelemetry-annotations-1.0-javaagent.gradle
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Unfortunately I don't think this'd work: tests Java process runs with our javaagent, which does not support Java <8. |
trask
approved these changes
Apr 2, 2021
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| setup: | ||
| /* | ||
| class GeneratedJava6TestClass implements Runnable { | ||
| @WithSpan | ||
| public void run() { | ||
| TraceUtils.runUnderTrace("intercept", {}) | ||
| } | ||
| } | ||
| */ | ||
| Class<?> generatedClass = new ByteBuddy(ClassFileVersion.JAVA_V6) | ||
| .subclass(Object) | ||
| .name("GeneratedJava6TestClass") | ||
| .implement(Runnable) | ||
| .defineMethod("run", void.class, Modifier.PUBLIC).intercept(MethodDelegation.to(new Object() { | ||
| @RuntimeType | ||
| void intercept(@This Object o) { | ||
| TraceUtils.runUnderTrace("intercept", {}) | ||
| } | ||
| })) | ||
| .visit(new MemberAttributeExtension.ForMethod() | ||
| .annotateMethod(AnnotationDescription.Builder.ofType(WithSpan).build()) | ||
| .on(ElementMatchers.named("run"))) | ||
| .make() | ||
| .load(getClass().getClassLoader()) | ||
| .getLoaded() |
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nice, I would have found a (random old) library that was compiled to Java 6 and tested instrumentation of that library, but this is better 👍
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