Migrate Java code to separate QL repo.

java/ql/src/DeadCode/DeadEnumConstant.java

@@ -0,0 +1,23 @@
+public enum Result {
+	SUCCESS,
+	FAILURE,
+	ERROR
+}
+
+public Result runOperation(String value) {
+	if (value == 1) {
+		return SUCCESS;
+	} else {
+		return FAILURE;
+	}
+}
+
+public static void main(String[] args) {
+	Result operationResult = runOperation(args[0]);
+	if (operationResult == Result.ERROR) {
+		exit(1);
+	} else {
+		exit(0);
+	}
+
+}