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java.lang.UnsupportedClassVersionError: com/sleepycat/db/EnvironmentConfig (Unsupported major.minor version 49.0)	at java.lang.ClassLoader.defineClass0(Native Method)	at java.lang.ClassLoader.defineClass(Unknown Source)	at java.security.SecureClassLoader.defineClass(Unknown Source)	at java.net.URLClassLoader.defineClass(Unknown Source)	at java.net.URLClassLoader.access$100(Unknown Source)	at java.net.URLClassLoader$1.run(Unknown Source)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(Unknown Source)	at java.lang.ClassLoader.loadClass(Unknown Source)	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)	at java.lang.ClassLoader.loadClass(Unknown Source)	at java.lang.ClassLoader.loadClassInternal(Unknown Source)	at dbxml.gettingStarted.exampleLoadContainer.createEnv(exampleLoadContainer.java:143)	at dbxml.gettingStarted.exampleLoadContainer.loadXmlFiles(exampleLoadContainer.java:163)	at dbxml.gettingStarted.exampleLoadContainer.main(exampleLoadContainer.java:85)