Java:无安全管理器:禁用RMI类加载器
Java:无安全管理器:禁用RMI类加载器
提问于 2011-06-12 21:07:58
您好，我有一个RMI应用程序，现在我尝试从客户机调用服务器上的一些方法。我有以下代码：
public static void main(final String[] args) {
try {
//Setting the security manager
System.setSecurityManager(new RMISecurityManager());
IndicatorsService server = (IndicatorsService) Naming
.lookup("rmi://localhost/" + IndicatorsService.SERVICE_NAME);
DataProvider provider = new OHLCProvider(server);
server.registerOHLCProvider(provider);
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (RemoteException e) {
e.printStackTrace();
} catch (NotBoundException e) {
e.printStackTrace();
}
}服务器已正确加载，但当我尝试调用server.registerOHLCProvider(provider);时，收到以下错误：
java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: sk.xorty.client.providers.OHLCProvider (no security manager: RMI class loader disabled)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:336)
at sun.rmi.transport.Transport$1.run(Transport.java:159)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:255)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:233)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:142)
at sk.fri.statistics.service.impl.IndicatorsServiceImpl_Stub.registerOHLCProvider(Unknown Source)
at sk.fri.statistics.service.Client.main(Client.java:61)
Caused by: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: sk.xorty.client.providers.OHLCProvider (no security manager: RMI class loader disabled)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:296)
at sun.rmi.transport.Transport$1.run(Transport.java:159)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ClassNotFoundException: sk.xorty.client.providers.OHLCProvider (no security manager: RMI class loader disabled)
at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:375)
at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:165)
at java.rmi.server.RMIClassLoader$2.loadClass(RMIClassLoader.java:620)
at java.rmi.server.RMIClassLoader.loadClass(RMIClassLoader.java:247)
at sun.rmi.server.MarshalInputStream.resolveClass(MarshalInputStream.java:197)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1574)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1495)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1731)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
at sun.rmi.server.UnicastRef.unmarshalValue(UnicastRef.java:306)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:290)
... 9 more我已经添加了我的策略文件作为VM参数，如下所示：
grant {
permission java.security.AllPermission;
}它一直在说一些关于禁用类加载的事情，所以我猜问题出在某个地方……谢谢!
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原文链接：
https://stackoverflow.com/questions/6322107
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