我们在项目中使用了Java安全类，在JDK 17中，这些安全类被标记为删除。这些类的替代方案是什么。我们在项目中使用以下类和方法来实现脚本策略安全性。

Security.setProperty(), 
  Policy.setPolicy(new ScriptPolicy(getClass().getClassLoader()));, 
  System.setSecurityManager(new SecurityManager());

政策如

_groovyPermissions.add(new PropertyPermission("java.version", "read"));
  _groovyPermissions.add(new PropertyPermission("java.vm.name", "read"));
 _groovyPermissions.add(new PropertyPermission("groovy.*", "read"));

根据JDK 17迁移“https://docs.oracle.com/en/java/javase/17/migrate/migrating-jdk-8-later-jdk-releases.html#GUID-7DACC239-E71D-4B89-B582-201EA7CEBC38”
目前还没有其他选择。

public class ScriptPolicy extends Policy

and 
  
  
From this method, we are getting permissions.

   

     protected void _addStaticPermissions()
            {
                
                    _groovyPermissions.add(new PropertyPermission("java.version", "read"));
                    _groovyPermissions.add(new PropertyPermission("java.vm.name", "read"));
                    _groovyPermissions.add(new PropertyPermission("groovy.*", "read"));
        }
    
    

This is the code where we assign the permissions to Policy.

 if (System.getSecurityManager() == null) {
            String restricted = Security.getProperty("package.access");
            Security.setProperty("package.access",
                    restricted + "com.xyz");
            Policy.setPolicy(new ScriptPolicy(getClass().getClassLoader()));
            System.setSecurityManager(new SecurityManager());
        }