| Class and Description | 
|---|
| ContextAware Event handlers implementing this interface will automatically
 have the method setContext called before each event. | 
| RuntimeServicesAware Use this interface to automatically
 have the method setRuntimeServices called at initialization. | 
| Class and Description | 
|---|
| ExtProperties This class extends normal Java properties by adding the possibility
 to use the same key many times concatenating the value strings
 instead of overwriting them. | 
| Class and Description | 
|---|
| ExtProperties This class extends normal Java properties by adding the possibility
 to use the same key many times concatenating the value strings
 instead of overwriting them. | 
| Class and Description | 
|---|
| DeprecationAwareExtProperties Deprecated. 
 it will disappear along with deprecated key names in 3.0. | 
| DuckType.Types | 
| ExtProperties This class extends normal Java properties by adding the possibility
 to use the same key many times concatenating the value strings
 instead of overwriting them. | 
| Class and Description | 
|---|
| RuntimeServicesAware Use this interface to automatically
 have the method setRuntimeServices called at initialization. | 
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