cgroup mem err on docker

[ezrizhu]

OpenJDK 64-Bit Server VM warning: Unable to open cgroup memory limit file /sys/fs/cgroup/memory/memory.limit_in_bytes (No such file or directory)
Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" java.lang.UnsupportedClassVersionError: org/springframework/boot/loader/launch/JarLauncher has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 52.0
��������at java.lang.ClassLoader.defineClass1(Native Method)
��������at java.lang.ClassLoader.defineClass(ClassLoader.java:756)
��������at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
��������at java.net.URLClassLoader.defineClass(URLClassLoader.java:473)
��������at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
��������at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
��������at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
��������at java.security.AccessController.doPrivileged(Native Method)
��������at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
��������at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
��������at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)
��������at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
��������at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:601)