Module provides a static instrumentation agent, which transforms broker classes

• org.apache.qpid.server.model.ConfiguredObjectMethodAttributeOrStatistic
• org.apache.qpid.server.model.ConfiguredObjectMethodOperation
• org.apache.qpid.server.model.ConfiguredObjectTypeRegistry$AutomatedField

replacing reflection calls method.invoke() with static final MethodHandle.invokeExact().

To use instrumentation agent following JVM argument should be added to the broker start parameters:

-javaagent:$BROKER_DIR/lib/qpid-broker-instrumentation-${broker-version}.jar

List of classes to instrument can be supplied as a comma separated list:

-javaagent:$BROKER_DIR/lib/qpid-broker-instrumentation-${broker-version}.jar=ConfiguredObjectMethodAttributeOrStatistic

-javaagent:$BROKER_DIR/lib/qpid-broker-instrumentation-${broker-version}.jar=ConfiguredObjectMethodAttributeOrStatistic,ConfiguredObjectMethodOperation

-javaagent:$BROKER_DIR/lib/qpid-broker-instrumentation-${broker-version}.jar=ConfiguredObjectMethodAttributeOrStatistic,ConfiguredObjectMethodOperation,AutomatedField

When no arguments supplied, all classes will be instrumented.