我在试着签我的java小程序。我运行了以下行来创建一个证书:keytool -selfcert -keystore myKeyStore -alias ben然后我运行这一行:但它只会告诉我:
Error: Could not find or load main class sun.security.tools.JarSi
org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:442)Caused by: Execute failed: java.io.IOException: Cannot run program "jarsigner.exejarprocessor.ant.AntSignCommand.execute(AntSignCommand.java:51)Caused by: java.io.IOException: Cannot run program &q