重大: Problems copying method. Incompatible JVM? java.lang.reflect.InvocationTargetException

grailのデモ実行でエラー

重大: Problems copying method. Incompatible JVM? java.lang.reflect.InvocationTargetException

1. Go to your local Grails lib directory to find springloaded jar. For me that was /usr/local/Cellar/grails/2.4.4/libexec/lib/org.springframework/springloaded/jars/
2. remove existing 1.2.1 jars (I removed pom file, too, but not necessary)
3. download latest springloaded jar and place into the jars subdir: wget http://repo.spring.io/libs-snapshot-local/org/springframework/springloaded/1.2.4.BUILD-SNAPSHOT/springloaded-1.2.4.BUILD-SNAPSHOT.jar

springloadedを最新版に入れ替えると、問題なくエラーがなくなりAPが軌道。