java.lang.unsupportedclassversionerror:org/apache/maven/cli/mavencli:unsupported Major.minor vers

One day changed the MyEclipse, replaced by 2016CI, the result from SVN download a project after the following error occurred:

Exception in thread "main" java.lang.unsupportedclassversionerror:org/apache/maven/cli/mavencli:unsupported Major.minor version 51.0
At Java.lang.ClassLoader.defineClass1 (Native method)
At Java.lang.ClassLoader.defineClassCond (classloader.java:631)
At Java.lang.ClassLoader.defineClass (classloader.java:615)
At Java.security.SecureClassLoader.defineClass (secureclassloader.java:141)
At Java.net.URLClassLoader.defineClass (urlclassloader.java:283)
At java.net.urlclassloader.access$000 (urlclassloader.java:58)
At Java.net.urlclassloader$1.run (urlclassloader.java:197)
At Java.security.AccessController.doPrivileged (Native method)
At Java.net.URLClassLoader.findClass (urlclassloader.java:190)
At Org.codehaus.plexus.classworlds.realm.ClassRealm.loadClassFromSelf (classrealm.java:401)
At Org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass (selffirststrategy.java:42)
At Org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass (classrealm.java:271)
At Org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass (classrealm.java:254)
At Org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass (classrealm.java:239)
At Org.codehaus.plexus.classworlds.launcher.Launcher.getMainClass (launcher.java:144)
At org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (launcher.java:266)
At Org.codehaus.plexus.classworlds.launcher.Launcher.launch (launcher.java:229)
At Org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (launcher.java:415)
At Org.codehaus.plexus.classworlds.launcher.Launcher.main (launcher.java:356)

The hint error is that the JDK version used is incorrect, that is, the JDK version currently in use does not support the version to be used by MAVENCLI, here is a description:

Major.minor version 51.0 corresponds to the JDK1.7
Major.minor version 50.0 corresponds to the JDK1.6

At this time looked at the newly installed MyEclipse is configured in this way:

Processed as follows: