bug-free with respect to Findbugs

build.gradle

src/main/java/de/tlc4b/TLC4B.java

src/test/java/de/tlc4b/prettyprint/Tester.java

src/test/java/de/tlc4b/util/TestUtil.java

src/test/java/testing/CompoundScopeTest.java

src/test/java/testing/CompoundTest.java

src/test/java/testing/Testing.java