org_apache_servicecomb_pack_omega_transaction_TransactionAspectTest_java
org.apache.logging.log4j.Level
private Level(String name, int intLevel) {
        if (Strings.isEmpty(name)) {
            throw new IllegalArgumentException("Illegal null or empty Level name.");
        }
        if (intLevel < 0) {
            throw new IllegalArgumentException("Illegal Level int less than zero.");
        }
        this.name = name;
        this.intLevel = intLevel;
        this.standardLevel = StandardLevel.getStandardLevel(intLevel);
        if (LEVELS.putIfAbsent(name, this) != null) {
            throw new IllegalStateException("Level " + name + " has already been defined.");
        }
    }
 -> java.lang.System.getProperty(java.lang.String): java.lang.String -> java.lang.CharSequence.length(): int -> java.util.concurrent.ConcurrentMap.putIfAbsent(java.lang.Object,java.lang.Object): java.lang.Object
 [CALL] [CALL] [EXIT] [CALL] [CALL] -> java.lang.System.getProperty(java.lang.String): java.lang.String [EXIT] [EXIT] [CALL] -> java.lang.CharSequence.length(): int [EXIT] -> java.util.concurrent.ConcurrentMap.putIfAbsent(java.lang.Object,java.lang.Object): java.lang.Object [EXIT]