externalPluginsMetadata
    end
    
    jar --> class1 --> instrumentingClassTransform --> modifiedClass1 --> modifiedJar
    jar --> class2 --> instrumentingClassTransform --> modifiedClass2 --> modifiedJar
    jar --> class3 --> instrumentingClassTransform --> modifiedClass3 --> modifiedJar
    Injected --> instrumentingClassTransform
    
```

#### Dynamic Groovy interception

        jar(file)
        def classpath = DefaultClassPath.of(file)
        def cachedFile = testDir.file("cached/o_e161f24809571a55f09d3f820c8e5942/thing.jar")
        transformer.transform(classpath, None)
        modifiedJar(file)

        when:
        def cachedClasspath = transformer.transform(classpath, None)

        then:
        cachedClasspath.asFiles == [cachedFile]

        and:

			return nil, mergepatch.ErrBadJSONDoc
		}
	}

	modifiedMap := map[string]interface{}{}
	if len(modified) > 0 {
		if err := json.Unmarshal(modified, &modifiedMap); err != nil {
			return nil, mergepatch.ErrBadJSONDoc
		}
	}

	patchMap, err := CreateTwoWayMergeMapPatchUsingLookupPatchMeta(originalMap, modifiedMap, schema, fns...)
	if err != nil {
		return nil, err
	}