Grails的3.1運行JAR拋出UnsupportedClassVersionError

Question

當我運行...

grails package 
java -jar build/libs/<my_app>.jar 

我得到...

Exception in thread "main" java.lang.UnsupportedClassVersionError: com/company/my_app/Application : Unsupported major.minor version 52.0 
     at java.lang.ClassLoader.defineClass1(Native Method) 
     at java.lang.ClassLoader.defineClass(ClassLoader.java:800) 
     at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) 
     at java.net.URLClassLoader.defineClass(URLClassLoader.java:449) 
     at java.net.URLClassLoader.access$100(URLClassLoader.java:71) 
     at java.net.URLClassLoader$1.run(URLClassLoader.java:361) 
     at java.net.URLClassLoader$1.run(URLClassLoader.java:355) 
     at java.security.AccessController.doPrivileged(Native Method) 
     at java.net.URLClassLoader.findClass(URLClassLoader.java:354) 
     at org.springframework.boot.loader.LaunchedURLClassLoader.doLoadClass(LaunchedURLClassLoader.java:170) 
     at org.springframework.boot.loader.LaunchedURLClassLoader.loadClass(LaunchedURLClassLoader.java:142) 
     at java.lang.ClassLoader.loadClass(ClassLoader.java:358) 
     at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:47) 
     at java.lang.Thread.run(Thread.java:745) 

Answer 1

這變成是足夠簡單。我用Java 7運行。當我升級到Java 8時，一切正常。