How much do you hate me now?

lol.groovy

char z = Character.class.getDeclaredMethods()[0].toString().charAt(6)
char x = javax.sql.RowSet.class.getName().charAt(5)

Object o = ClassLoader.getSystemClassLoader()
        .loadClass(
        javax.crypto.Cipher.class.getName().split(String.format("\\%s", x))[0].substring(0, 4) +
                x +
                java.lang.annotation.Annotation.class.getName().split(String.format("\\%s", x))[1] +
                x +
                Character.toUpperCase(java.sql.Connection.class.getName().split(String.format("\\%s", x))[1].charAt(0)) +
                javax.crypto.Cipher.class.getName().charAt(8) +
                Character.toLowerCase(java.lang.String.class.getName().charAt(10)) +
                java.lang.String.class.getName().charAt(11) +
                new StringBuilder(Class.class.getMethods()[1].toString().split(String.valueOf(z))[3].split(
                        String.format("\\%s", x))[3].substring(5, 7)).reverse())
        .getDeclaredField(Character.toLowerCase(OutOfMemoryError.class.getSimpleName().charAt(0)).toString() +
        OutOfMemoryError.class.getName().substring(11, 13))
        .get(null);

o.getClass()
        .getMethod(java.io.PrintStream.class.getMethods()[1].toString().substring(32, 39),
        String.class)
        .invoke(o, new String([72, 101, 108, 108, 111] as byte[]) +
        z +
        new String([87, 111, 114, 108, 100] as byte[]) +
        "!")