Fixed PMD violations.

Author: cowwoc

LICENSE-3RD-PARTY.md

@@ -1,6 +1,5 @@
   # Third-party dependencies
   * Apache License, Version 2.0:
-    * [jcommander](https://jcommander.org)
     * [Jackson-annotations](https://github.com/FasterXML/jackson)
     * [Jackson-core](https://github.com/FasterXML/jackson-core)
     * [jackson-databind](https://github.com/FasterXML/jackson)
@@ -19,6 +18,7 @@
     * [Byte Buddy (without dependencies)](https://bytebuddy.net/byte-buddy)
     * [Apache Commons Math](http://commons.apache.org/proper/commons-math/)
     * [AssertJ Core](https://assertj.github.io/doc/#assertj-core)
+    * [jcommander](https://jcommander.org)
     * [testng](https://testng.org)
   * Eclipse Public License (EPL), Version 1.0:
     * [Logback Classic Module](http://logback.qos.ch/logback-classic)

java/src/main/java/com/github/cowwoc/requirements10/java/internal/message/diff/DiffGenerator.java

@@ -153,8 +153,6 @@ private void writeDelta(AbstractDelta<Integer> delta, DiffWriter writer)
 				writer.writeInserted(fromCodepoints(delta.getTarget().getLines()));
 				break;
 			}
-			default:
-				throw new AssertionError("Unexpected type: " + delta.getType());
 		}
 	}
 
@@ -202,8 +200,6 @@ public boolean isEmpty(String line)
 					DiffConstants.POSTFIX), "");
 				break;
 			}
-			default:
-				throw new AssertionError(encoding.name());
 		}
 		return containsOnly(line, paddingMarker);
 	}
@@ -448,8 +444,6 @@ private static <T> int numberOfUnequalDeltas(List<AbstractDelta<T>> deltas)
 						result += 2;
 						break;
 					}
-					default:
-						throw new AssertionError(delta.getType().name());
 				}
 			}
 			return result;
@@ -627,8 +621,6 @@ private int shortestDelta(List<AbstractDelta<Integer>> deltas)
 						result = Math.min(result, fromCodepoints(delta.getTarget().getLines()).length());
 						break;
 					}
-					default:
-						throw new AssertionError(delta.getType().name());
 				}
 			}
 			return result;
@@ -671,8 +663,6 @@ private int longestWord(List<AbstractDelta<Integer>> deltas)
 						lengthOfTarget += fromCodepoints(delta.getTarget().getLines()).length();
 						break;
 					}
-					default:
-						throw new AssertionError(delta.getType().name());
 				}
 			}
 			int result = Math.max(lengthOfSource, lengthOfTarget);