piotrl / jvm-instrumentation

Spy @PerformanceAudit methods with Javasisst

Instrumentation with Javaassist

• Used Spark to handle HTTP requests

Howto run

mvn clean integration-test

During unit test, you shouldn't see any [AUDIT] output in console.

What works

• @PerformanceAudit annotation
• Http server runned during tests
• Showing parameters of method

Output

Unit tests

agentWithoutAnnotation
agentSlowWithAnnotation
agentFastWithAnnotation

Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 2.07 sec```

Integration tests

agentWithoutAnnotation
agentSlowWithAnnotation

 [AUDIT][ARGS] {:name=Joe}
 [AUDIT][getJoe] Method elapsedTime = 1000

agentFastWithAnnotation

 [AUDIT][ARGS] {:name=fastparam}
 [AUDIT][getJoe] Method elapsedTime = 0

Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 2.992 sec - in net.piotrl.jvm.instr.InstrIT