Fix static analysis code style violations.

.../java/theodolite/uc1/workloadgenerator/LoadGenerator.java

...java/theodolite/uc2/streamprocessing/TopologyBuilder.java

...dolite/uc2/streamprocessing/OptionalParentsSerdeTest.java

...ava/theodolite/uc2/streamprocessing/ParentsSerdeTest.java

...dolite/uc2/streamprocessing/SensorParentKeySerdeTest.java

...ava/theodolite/uc2/workloadgenerator/ConfigPublisher.java

.../java/theodolite/uc2/workloadgenerator/LoadGenerator.java

.../java/theodolite/uc3/workloadgenerator/LoadGenerator.java

.../java/theodolite/uc4/workloadgenerator/LoadGenerator.java

...neration/communication/zookeeper/WorkloadDistributor.java

...kloadgeneration/generators/AbstractWorkloadGenerator.java

...dgeneration/generators/KafkaWorkloadGeneratorBuilder.java