com.sun.javatest.regtest.RegressionTestSecurityManager shall implement the checkPermission(Permission, Object) method to get the jdk tests to pass the permission checks in samevm mode.

jdk/test/java/lang/management/ManagementFactory/MXBeanProxyTest.java fails in samevm mode due to this bug.

java.security.AccessControlException: access denied ("javax.management.MBeanTrustPermission" "register")
       at java.security.AccessControlContext.checkPermission(AccessControlContext.java:345)
       at java.lang.SecurityManager.checkPermission(SecurityManager.java:585)
       at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.checkMBeanTrustPermission(DefaultMBeanServerInterceptor.java:1848)
       at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:322)
       at com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:512)
       at MXBeanProxyTest.main(MXBeanProxyTest.java:88)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
       at java.lang.reflect.Method.invoke(Method.java:613)
       at com.sun.javatest.regtest.MainAction$SameVMRunnable.run(MainAction.java:680)
       at java.lang.Thread.run(Thread.java:717)