Exploration.alg: Resolve multiple warnings.

...lg/trunk/src/org/fortiss/af3/exploration/alg/dse/.ratings

...k/src/org/fortiss/af3/exploration/alg/dse/DSEFactory.java

...rg/fortiss/af3/exploration/alg/dse/backend/opt4j/.ratings

...on/alg/dse/backend/opt4j/create/partitionmapping/.ratings

...xploration/alg/dse/backend/opt4j/create/platform/.ratings

...s/af3/exploration/alg/dse/backend/opt4j/encoding/.ratings

...ation/alg/dse/backend/opt4j/encoding/MappingEncoding.java

...tion/alg/dse/backend/opt4j/encoding/MappingEntryBase.java

...n/alg/dse/backend/opt4j/encoding/comm/constraint/.ratings

...ing/comm/constraint/InternalIsolatedCommunicationSet.java

.../alg/dse/backend/opt4j/encoding/partitionmapping/.ratings

...j/encoding/partitionmapping/PartitionMappingEncoding.java

...loration/alg/dse/backend/opt4j/encoding/platform/.ratings

...encoding/platform/PlatformCommunicationGraphEncoding.java

...oration/alg/dse/backend/opt4j/encoding/taskgraph/.ratings

...d/opt4j/encoding/taskgraph/AbstractTaskGraphEncoding.java

...oding/taskgraph/InstantiatedAcyclicTaskGraphEncoding.java

...t4j/encoding/taskgraph/InstantiatedTaskGraphEncoding.java

...e/backend/opt4j/encoding/taskgraph/TaskGraphEncoding.java

...ation/alg/dse/backend/opt4j/encoding/taskmapping/.ratings