InstrumentableClassLoader (Payara Project 6.2022.1.Alpha3 API)

All Known Implementing Classes:

ASURLClassLoader, ConnectorClassFinder, ConnectorClassLoader, EarClassLoader, EarLibClassLoader, WebappClassLoader
```
public interface InstrumentableClassLoader
```
Providers of class loaders for GlassFish applications can optionally implements this interface to indicate their class loader is capable of byte code enhancement.

Author:

Persistence Team

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`addTransformer(ClassFileTransformer transformer)`	Add a new ClassFileTransformer to this class loader.
`ClassLoader`	`copy()`	Create and return a temporary loader with the same visibility as this loader.

- Method Detail
  - copy
```
ClassLoader copy()
```
    Create and return a temporary loader with the same visibility as this loader. The temporary loader may be used to load resources or any other application classes for the purposes of introspecting them for annotations. The persistence provider should not maintain any references to the temporary loader, or any objects loaded by it.
    
    Returns:
    
    A temporary classloader with the same classpath as this loader
  - addTransformer
```
void addTransformer(ClassFileTransformer transformer)
```
    Add a new ClassFileTransformer to this class loader. This transformer should be called for each class loading event.
    
    Parameters:
    
    transformer - new class file transformer to do byte code enhancement.