worked on setting attributes in AbstractStage to final

...variant/methodcallWithPorts/framework/core/InputPort.java

...methodcallWithPorts/framework/core/pipe/AbstractPipe.java

...hodcallWithPorts/framework/core/pipe/CommittablePipe.java

...nt/methodcallWithPorts/framework/core/pipe/DummyPipe.java

...ariant/methodcallWithPorts/framework/core/pipe/IPipe.java

...methodcallWithPorts/framework/core/pipe/IPipeFactory.java

...hodcallWithPorts/framework/core/pipe/InterThreadPipe.java

...hodcallWithPorts/framework/core/pipe/IntraThreadPipe.java

...thPorts/framework/core/pipe/OrderedGrowableArrayPipe.java

.../framework/core/pipe/OrderedGrowableArrayPipeFactory.java

...allWithPorts/framework/core/pipe/OrderedGrowablePipe.java

.../methodcallWithPorts/framework/core/pipe/PipeFactory.java

...ethodcallWithPorts/framework/core/pipe/RelayTestPipe.java

...dcallWithPorts/framework/core/pipe/SingleElementPipe.java

...thPorts/framework/core/pipe/SingleElementPipeFactory.java

...ant/methodcallWithPorts/framework/core/pipe/SpScPipe.java

...hodcallWithPorts/framework/core/pipe/SpScPipeFactory.java

...lWithPorts/framework/core/pipe/UnorderedGrowablePipe.java

...rts/framework/core/pipe/UnorderedGrowablePipeFactory.java