Compiler thows incorrect exception with SecurityManager

<testcase>
import java.io.*;
import java.util.*;
import javax.tools.*;

class SManager extends SecurityManager {

}

public class Foo {
  public static void main(String... arg) throws IOException {
      System.setSecurityManager(new SManager());
      JavaCompiler javac = ToolProvider.getSystemJavaCompiler();
      StandardJavaFileManager javaFileManager =
javac.getStandardFileManager(null,null,null);
  }
}

</testcase>

<output>
G:\trails>java Foo
javax.tools.ToolProvider: java.lang.ClassNotFoundException: com/sun/tools/javac/api/JavacTool; access denied (java.util.
PropertyPermission sun.tools.ToolProvider read)
javax.tools.ToolProvider: java.security.AccessControlException: access denied (java.util.PropertyPermission java.home re
ad); access denied (java.util.PropertyPermission sun.tools.ToolProvider read)
javax.tools.ToolProvider: Lazy.compilerClass == null; access denied (java.util.PropertyPermission sun.tools.ToolProvider
 read)
Exception in thread "main" java.lang.NullPointerException
        at Foo.main(Foo.java:13)

</output>

The above program throws NullPoniterException which is incorrect or can be documented.