| Package | Description | 
|---|---|
| java.lang.instrument | Provides services that allow Java programming language agents to instrument programs running on the JVM. | 
| Modifier and Type | Method and Description | 
|---|---|
| void | Instrumentation. addTransformer(ClassFileTransformer transformer)Registers the supplied transformer. | 
| void | Instrumentation. addTransformer(ClassFileTransformer transformer,
              boolean canRetransform)Registers the supplied transformer. | 
| boolean | Instrumentation. removeTransformer(ClassFileTransformer transformer)Unregisters the supplied transformer. | 
| void | Instrumentation. setNativeMethodPrefix(ClassFileTransformer transformer,
                     String prefix)This method modifies the failure handling of
 native method resolution by allowing retry
 with a prefix applied to the name. | 
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