JacORB3.x中本地对象的便携式拦截器的使用中断?

在JacORB 3中,可移植拦截器用于本地对象的实现方式发生了变化 发布说明中指出:“ 为本地对象正确实现了可移植拦截器。 " 这种新的实施方式似乎引起了一些问题;重现问题的最简单方法 是从sas演示(jacorb附带的演示)中修改GssUpServer.java:

public class GssUpServer extends SASDemoPOA {

        private ORB orb;
        private boolean calledPrintSAS = false; // added

        public GssUpServer(ORB orb) {
            this.orb = orb;
        }

        public void printSAS() {
            try {
                org.omg.PortableInterceptor.Current current = (org.omg.PortableInterceptor.Current) orb
                        .resolve_initial_references("PICurrent");
                org.omg.CORBA.Any anyName = current
                        .get_slot(org.jacorb.security.sas.SASInitializer.sasPrincipalNamePIC);
                if (anyName.type().kind().value() == org.omg.CORBA.TCKind._tk_null) {
                    System.out.println("Null Name");
                } else {
                    String name = anyName.extract_string();
                    System.out.println("printSAS for user " + name);
                }

                // /* added
                if (!calledPrintSAS) {
                    calledPrintSAS = true;                    
                    // local call, (JacORB 3.x: throws NPE from SASClientInterceptor)
                    _this().printSAS();
                }
                // */
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
...
}

GssUpClient.bat之后的堆栈跟踪:

2013-04-11 11:01:24.968 SEVERE unexpected exception during servant_preinvoke              org.jacorb.security.sas.SASClientInterceptor.send_request(SASClientInterceptor.java:194)
org.jacorb.orb.portableInterceptor.ClientInterceptorIterator.invoke(ClientInterceptorIterator.java:129)
org.jacorb.orb.portableInterceptor.AbstractInterceptorIterator.iterate(AbstractInterceptorIterator.java:66)
org.jacorb.orb.portableInterceptor.ClientInterceptorIterator.iterate(ClientInterceptorIterator.java:87)
org.jacorb.orb.DefaultClientInterceptorHandler.invokeInterceptors(DefaultClientInterceptorHandler.java:328)
org.jacorb.orb.DefaultClientInterceptorHandler.handle_send_request(DefaultClientInterceptorHandler.java:132)
org.jacorb.orb.Delegate.servant_preinvoke(Delegate.java:2505)
org.omg.CORBA.portable.ObjectImpl._servant_preinvoke(ObjectImpl.java:135)
org.jacorb.demo.sas._SASDemoStub.printSAS(_SASDemoStub.java:73)
org.jacorb.demo.sas.GssUpServer.printSAS(GssUpServer.java:46)
org.jacorb.demo.sas.SASDemoPOA._invoke(SASDemoPOA.java:47)
org.jacorb.poa.RequestProcessor.invokeOperation(RequestProcessor.java:348)
org.jacorb.poa.RequestProcessor.process(RequestProcessor.java:670)
org.jacorb.poa.RequestProcessor.run(RequestProcessor.java:820)
java.lang.NullPointerException
    at org.jacorb.security.sas.SASClientInterceptor.send_request(SASClientInterceptor.java:194)
    at org.jacorb.orb.portableInterceptor.ClientInterceptorIterator.invoke(ClientInterceptorIterator.java:129)
    at org.jacorb.orb.portableInterceptor.AbstractInterceptorIterator.iterate(AbstractInterceptorIterator.java:66)
    at org.jacorb.orb.portableInterceptor.ClientInterceptorIterator.iterate(ClientInterceptorIterator.java:87)
    at org.jacorb.orb.DefaultClientInterceptorHandler.invokeInterceptors(DefaultClientInterceptorHandler.java:328)
    at org.jacorb.orb.DefaultClientInterceptorHandler.handle_send_request(DefaultClientInterceptorHandler.java:132)
    at org.jacorb.orb.Delegate.servant_preinvoke(Delegate.java:2505)
    at org.omg.CORBA.portable.ObjectImpl._servant_preinvoke(ObjectImpl.java:135)
    at org.jacorb.demo.sas._SASDemoStub.printSAS(_SASDemoStub.java:73)
    at org.jacorb.demo.sas.GssUpServer.printSAS(GssUpServer.java:46)
    at org.jacorb.demo.sas.SASDemoPOA._invoke(SASDemoPOA.java:47)
    at org.jacorb.poa.RequestProcessor.invokeOperation(RequestProcessor.java:348)
    at org.jacorb.poa.RequestProcessor.process(RequestProcessor.java:670)
    at org.jacorb.poa.RequestProcessor.run(RequestProcessor.java:820)

上面的代码在JacORB 2.3.1中运行得非常好。解决此问题的简单方法是设置属性 jacorb.isLocalHistoricalInterceptors 真实; 然而,某些“内置”方法(例如。 _is_a() )不尊重此标志(因为这些方法直接使用 is_really_local() ). 看起来 这些“内置”方法调用以前从未在本地进行调用时使用过拦截器。

因此,我的观察结果是:

1. JacORB3.x似乎破坏了一些用于本地调用的可移植拦截器(确切地说,需要连接对象的拦截器…)
2. JacORB3.x似乎是第一个使用便携式拦截器进行本地调用的JacORB _is_() , _non_existent() , _interface() , _get_component()

第一个问题是可以解决的,因为有一个属性可以使JacORB3.x与旧版本一样工作。第二个(与第一个结合在一起)看起来真的很麻烦。

有没有其他人注意到这种行为,并且能够证实我的怀疑,这确实是JacORB3.x中的一个缺陷,或者我错过了什么?