springboot整合打包成功后，运行提示sum/misc/URLClassPath找不到

[jiangchengshi]

1、xjar：2.1.1；jdk：11；spring boot：2.1.2.RELEASE；
2、maven完成打包；
3、运行 java -jar ./xxx.xjar；
4、输入密码，提示错误

[jiangchengshi]

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by io.xjar.boot.XBootClassLoader (file:/E:/wechat-0.0.1-SNAPSHOT.xjar) to field java.net.URLClassLoader.ucp
WARNING: Please consider reporting this to the maintainers of io.xjar.boot.XBootClassLoader
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Exception in thread "main" java.lang.NoClassDefFoundError: sun/misc/URLClassPath
at io.xjar.boot.XBootClassLoader.(XBootClassLoader.java:40)
at io.xjar.boot.XJarLauncher.createClassLoader(XJarLauncher.java:31)
at org.springframework.boot.loader.Launcher.createClassLoader(Launcher.java:64)
at org.springframework.boot.loader.Launcher.launch(Launcher.java:49)
at io.xjar.boot.XJarLauncher.launch(XJarLauncher.java:26)
at io.xjar.boot.XJarLauncher.main(XJarLauncher.java:22)
Caused by: java.lang.ClassNotFoundException: sun.misc.URLClassPath
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
... 6 more

[eric2877]

同样的问题，应该是需要使用生成的go启动器有关系，希望作者尽快给个说明文档，之前2.0.6用的正常。
另外什么是时候能够实现加密密码和启动密码分开？