RMI java.security.AccessControlException

Я новичок в RIM, и в настоящее время принимает учебник по http://java.sun.com/docs/books/tutorial/rmi/overview.html RMI java.security.AccessControlException

Я могу запустить сервер как:

 
C:\Documents and Settings\myHome>java -cp c:\home\ann\src;c:\home\ann\public_ 
html\classes\compute.jar -Djava.rmi.server.codebase=file:/c:/home/ann/public_htm 
l/classes/compute.jar -Djava.rmi.server.hostname=localhost -Djava.security.polic 
y=c:\home\ann\policy\server.policy engine.ComputeEngine 
ComputeEngine bound

Однако, когда я пытаюсь запустить клиент я получили исключения

 
access: access allowed (java.lang.RuntimePermission createClassLoader) 
access: access allowed (java.lang.reflect.ReflectPermission suppressAccessChecks 
) 
access: access allowed (java.lang.reflect.ReflectPermission suppressAccessChecks 
) 
access: access allowed (java.lang.reflect.ReflectPermission suppressAccessChecks 
) 
access: access allowed (java.lang.reflect.ReflectPermission suppressAccessChecks 
) 
ComputePi exception: 
java.rmi.ServerException: RemoteException occurred in server thread; nested exce 
ption is: 
     java.rmi.UnmarshalException: error unmarshalling arguments; nested excep 
tion is: 
     java.lang.ClassNotFoundException: access to class loader denied 
     at sun.rmi.server.UnicastServerRef.dispatch(Unknown Source) 
     at sun.rmi.transport.Transport$1.run(Unknown Source) 
     at java.security.AccessController.doPrivileged(Native Method) 
     at sun.rmi.transport.Transport.serviceCall(Unknown Source) 
     at sun.rmi.transport.tcp.TCPTransport.handleMessages(Unknown Source) 
     at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(Unknown Sou 
rce) 
     at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(Unknown Sour 
ce) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source 
) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 
     at java.lang.Thread.run(Unknown Source) 
     at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(Unknow 
n Source) 
     at sun.rmi.transport.StreamRemoteCall.executeCall(Unknown Source) 
     at sun.rmi.server.UnicastRef.invoke(Unknown Source) 
     at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(Unkn 
own Source) 
     at java.rmi.server.RemoteObjectInvocationHandler.invoke(Unknown Source) 
     at $Proxy0.executeTask(Unknown Source) 
     at client.ComputePi.main(ComputePi.java:27) 
Caused by: java.rmi.UnmarshalException: error unmarshalling arguments; nested ex 
ception is: 
     java.lang.ClassNotFoundException: access to class loader denied 
     at sun.rmi.server.UnicastServerRef.dispatch(Unknown Source) 
     at sun.rmi.transport.Transport$1.run(Unknown Source) 
     at java.security.AccessController.doPrivileged(Native Method) 
     at sun.rmi.transport.Transport.serviceCall(Unknown Source) 
     at sun.rmi.transport.tcp.TCPTransport.handleMessages(Unknown Source) 
     at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(Unknown Sou 
rce) 
     at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(Unknown Sour 
ce) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source 
) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 
     at java.lang.Thread.run(Unknown Source) 
Caused by: java.lang.ClassNotFoundException: access to class loader denied 
     at sun.rmi.server.LoaderHandler.loadClass(Unknown Source) 
     at sun.rmi.server.LoaderHandler.loadClass(Unknown Source) 
     at java.rmi.server.RMIClassLoader$2.loadClass(Unknown Source) 
     at java.rmi.server.RMIClassLoader.loadClass(Unknown Source) 
     at sun.rmi.server.MarshalInputStream.resolveClass(Unknown Source) 
     at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source) 
     at java.io.ObjectInputStream.readClassDesc(Unknown Source) 
     at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) 
     at java.io.ObjectInputStream.readObject0(Unknown Source) 
     at java.io.ObjectInputStream.readObject(Unknown Source) 
     at sun.rmi.server.UnicastRef.unmarshalValue(Unknown Source) 
     ... 10 more 
Caused by: java.security.AccessControlException: access denied (java.io.FilePerm 
ission \c:\home\jones\public_html\classes\- read) 
     at java.security.AccessControlContext.checkPermission(Unknown Source) 
     at java.security.AccessController.checkPermission(Unknown Source) 
     at java.lang.SecurityManager.checkPermission(Unknown Source) 
     at sun.rmi.server.LoaderHandler$Loader.checkPermissions(Unknown Source) 
     at sun.rmi.server.LoaderHandler$Loader.access$000(Unknown Source) 
     ... 21 more

я считаю, что проблема заключается в файл политики клиента для клиента (поправьте, если я ошибаюсь, пожалуйста), как мы можем видеть из трассировки стека

 
Caused by: java.security.AccessControlException: access denied (java.io.FilePerm 
ission \c:\home\jones\public_html\classes\- read)

Однако мой файл client.policy выглядит

 
grant codeBase "file:/c:/home/jones/public_html/classes/-" { 
    permission java.security.AllPermission; 
}; 
grant{ 
    permission java.net.SocketPermission "127.0.0.1:1024-65535", "connect,resolve"; 
};

Есть AllPermission для CodeBase "Файл:/с:/Главная/Джоунс/public_html/классы/-".

Итак, я неправильно установил разрешение на код базы данных, поэтому есть больше потребностей в клиентских приложениях для разрешения?

Спасибо !!!

Update: если я переместить файл client.policy в C: \ Program Files \ Java \ jre6 \ Lib \ безопасность и я запустить клиент с

 
C:\Documents and Settings\jianzhang>java -cp c:\home\jones\src;c:\home\jones\pub 
lic_html\classes\compute.jar -Djava.rmi.server.codebase=file:/c:/home/jones/publ 
ic_html/classes/ -Djava.security.policy=client.policy -Djava.security.debug=acce 
ss,failure client.ComputePi localhost 45

я получил исключение

 
ComputePi exception: 
java.security.AccessControlException: access denied (java.net.SocketPermission 1 
27.0.0.1:1099 connect,resolve) 
     at java.security.AccessControlContext.checkPermission(Unknown Source) 
     at java.security.AccessController.checkPermission(Unknown Source) 
     at java.lang.SecurityManager.checkPermission(Unknown Source) 
     at java.lang.SecurityManager.checkConnect(Unknown Source) 
     at java.net.Socket.connect(Unknown Source) 
     at java.net.Socket.connect(Unknown Source) 
     at java.net.Socket.(Unknown Source) 
     at java.net.Socket.(Unknown Source) 
     at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(Unknown S 
ource) 
     at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(Unknown S 
ource) 
     at sun.rmi.transport.tcp.TCPEndpoint.newSocket(Unknown Source) 
     at sun.rmi.transport.tcp.TCPChannel.createConnection(Unknown Source) 
     at sun.rmi.transport.tcp.TCPChannel.newConnection(Unknown Source) 
     at sun.rmi.server.UnicastRef.newCall(Unknown Source) 
     at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source) 
     at client.ComputePi.main(ComputePi.java:25)

Однако файл client.policy указал

 
grant{ 
    permission java.net.SocketPermission "127.0.0.1:1024-65535", "connect,resolve"; 
};

Обновление с полной трассировки стека Вот полный трассировки стека,

 
C:\home\jones\src>java -cp C:\home\jones\src;C:\home\jones\public_html\classes\c 
ompute.jar;C:\home\jones\public_html\classes -Djava.rmi.server.codebase=file:/C: 
/home/jones/public_html/classes/ -Djava.security.policy=client.policy -Djava.sec 
urity.debug=access,failure client.ComputePi localhost 45 
access: access allowed (java.lang.reflect.ReflectPermission suppressAccessChecks 
) 
access: access allowed (java.security.SecurityPermission getProperty.policy.expa 
ndProperties) 
access: access allowed (java.security.SecurityPermission getProperty.policy.igno 
reIdentityScope) 
access: access allowed (java.security.SecurityPermission getProperty.policy.allo 
wSystemProperty) 
access: access allowed (java.util.PropertyPermission sun.security.policy.utf8 re 
ad) 
access: access allowed (java.util.PropertyPermission sun.security.policy.numcach 
es read) 
access: access allowed (java.util.PropertyPermission java.security.policy read) 
access: access allowed (java.util.PropertyPermission user.dir read) 
access: access allowed (java.io.FilePermission C:\home\jones\src\client.policy r 
ead) 
access: access allowed (java.io.FilePermission client.policy read) 
access: access allowed (java.security.SecurityPermission getProperty.policy.url. 
1) 
access: access allowed (java.util.PropertyPermission java.home read) 
access: access allowed (java.io.FilePermission C:\Program Files\Java\jre6\lib\se 
curity\java.policy read) 
access: access allowed (java.io.FilePermission C:\Program Files\Java\jre6\lib\se 
curity\java.policy read) 
access: access allowed (java.io.FilePermission C:\Program Files\Java\jre6\lib\se 
curity\java.policy read) 
access: access allowed (java.io.FilePermission C:\Program Files\Java\jre6\lib\se 
curity\java.policy read) 
access: access allowed (java.util.PropertyPermission java.ext.dirs read) 
access: access allowed (java.io.FilePermission C:\Program Files\Java\jre6\lib\ex 
t\* read) 
access: access allowed (java.io.FilePermission C:\WINDOWS\Sun\Java\lib\ext\* rea 
d) 
access: access allowed (java.security.SecurityPermission getProperty.policy.url. 
2) 
access: access allowed (java.util.PropertyPermission user.home read) 
access: access allowed (java.io.FilePermission C:\Documents and Settings\anga 
ng\.java.policy read) 
access: access allowed (java.io.FilePermission C:\Documents and Settings\anga 
ng\.java.policy read) 
access: access allowed (java.io.FilePermission C:\Documents and Settings\anga 
ng\.java.policy read) 
access: access allowed (java.security.SecurityPermission getProperty.policy.url. 
3) 
access: access allowed (java.util.PropertyPermission java.security.auth.policy r 
ead) 
access: access allowed (java.security.SecurityPermission getProperty.auth.policy 
.url.1) 
access: access allowed (java.lang.RuntimePermission accessClassInPackage.sun.sec 
urity.provider) 
access: access allowed (java.lang.reflect.ReflectPermission suppressAccessChecks 
) 
access: access allowed (java.util.PropertyPermission java.security.egd read) 
access: access allowed (java.security.SecurityPermission getProperty.securerando 
m.source) 
access: access allowed (java.security.SecurityPermission putProviderProperty.SUN 
) 
access: access allowed (java.lang.reflect.ReflectPermission suppressAccessChecks 
) 
access: access allowed (java.lang.reflect.ReflectPermission suppressAccessChecks 
) 
access: access allowed (java.util.PropertyPermission * read,write) 
access: access allowed (java.util.PropertyPermission os.arch read) 
access: access allowed (java.util.PropertyPermission java.net.preferIPv6Addresse 
s read) 
access: access allowed (java.lang.RuntimePermission loadLibrary.net) 
access: access allowed (java.io.FilePermission C:\Program Files\Java\jre6\bin\ne 
t.dll read) 
access: access allowed (java.util.PropertyPermission java.net.preferIPv4Stack re 
ad) 
access: access allowed (java.util.PropertyPermission impl.prefix read) 
access: access allowed (java.lang.reflect.ReflectPermission suppressAccessChecks 
) 
access: access allowed (java.util.PropertyPermission sun.net.spi.nameservice.pro 
vider.1 read) 
access: access allowed (java.net.SocketPermission myComputer resolve) 
access: access allowed (java.security.SecurityPermission getProperty.networkaddr 
ess.cache.ttl) 
access: access allowed (java.util.PropertyPermission sun.net.inetaddr.ttl read) 
access: access allowed (java.security.SecurityPermission getProperty.networkaddr 
ess.cache.negative.ttl) 
access: access allowed (java.io.FilePermission C:\Documents and Settings\anga 
ng\Local Settings\Temp read) 
access: access allowed (java.io.FilePermission C:\Documents and Settings\anga 
ng\Local Settings\Temp read) 
access: access allowed (java.io.FilePermission C:\Documents and Settings\anga 
ng\Local Settings\Temp read) 
access: access allowed (java.io.FilePermission C:\Documents and Settings\anga 
ng\Local Settings\Temp read) 
access: access allowed (java.io.FilePermission C:\DOCUME~1\ang~1\LOCALS~1\Tem 
p read) 
access: access allowed (java.util.PropertyPermission java.rmi.server.hostname re 
ad) 
access: access allowed (java.io.FilePermission C:\home\jones\src read) 
access: access denied (java.net.SocketPermission myComputer resolve) 
java.lang.Exception: Stack trace 
     at java.lang.Thread.dumpStack(Unknown Source) 
     at java.security.AccessControlContext.checkPermission(Unknown Source) 
     at java.security.AccessController.checkPermission(Unknown Source) 
     at java.lang.SecurityManager.checkPermission(Unknown Source) 
     at java.lang.SecurityManager.checkConnect(Unknown Source) 
     at java.net.InetAddress.getLocalHost(Unknown Source) 
     at sun.rmi.transport.tcp.TCPEndpoint.(Unknown Source) 
     at java.rmi.registry.LocateRegistry.getRegistry(Unknown Source) 
     at java.rmi.registry.LocateRegistry.getRegistry(Unknown Source) 
     at java.rmi.registry.LocateRegistry.getRegistry(Unknown Source) 
     at client.ComputePi.main(ComputePi.java:24) 
access: access allowed (java.security.SecurityPermission getPolicy) 
access: access allowed (java.io.FilePermission C:\home\jones\src read) 
access: domain that failed ProtectionDomain (file:/C:/home/jones/src/) 
[email protected] 
    
[email protected] (
(java.lang.RuntimePermission stopThread) 
(java.lang.RuntimePermission exitVM) 
(java.io.FilePermission \C:\home\jones\src\- read) 
(java.util.PropertyPermission line.separator read) 
(java.util.PropertyPermission java.vm.version read) 
(java.util.PropertyPermission java.vm.specification.version read) 
(java.util.PropertyPermission java.vm.specification.vendor read) 
(java.util.PropertyPermission java.vendor.url read) 
(java.util.PropertyPermission java.vm.name read) 
(java.util.PropertyPermission os.name read) 
(java.util.PropertyPermission java.vm.vendor read) 
(java.util.PropertyPermission path.separator read) 
(java.util.PropertyPermission java.specification.name read) 
(java.util.PropertyPermission os.version read) 
(java.util.PropertyPermission os.arch read) 
(java.util.PropertyPermission java.class.version read) 
(java.util.PropertyPermission java.version read) 
(java.util.PropertyPermission file.separator read) 
(java.util.PropertyPermission java.vendor read) 
(java.util.PropertyPermission java.vm.specification.name read) 
(java.util.PropertyPermission java.specification.version read) 
(java.util.PropertyPermission java.specification.vendor read) 
(java.net.SocketPermission localhost:1024- listen,resolve) 
) 


access: access allowed (java.util.PropertyPermission java.rmi.server.useLocalHos 
tName read) 
access: access allowed (java.util.PropertyPermission sun.rmi.transport.logLevel 
read) 
access: access allowed (java.util.PropertyPermission sun.rmi.log.useOld read) 
access: access allowed (java.util.PropertyPermission java.util.logging.manager r 
ead) 
access: access allowed (java.lang.RuntimePermission setContextClassLoader) 
access: access allowed (java.lang.RuntimePermission shutdownHooks) 
access: access allowed (java.util.logging.LoggingPermission control) 
access: access allowed (java.util.PropertyPermission java.util.logging.config.cl 
ass read) 
access: access allowed (java.util.PropertyPermission java.util.logging.config.fi 
le read) 
access: access allowed (java.util.PropertyPermission java.home read) 
access: access allowed (java.io.FilePermission C:\Program Files\Java\jre6\lib\lo 
gging.properties read) 
access: access allowed (java.io.FilePermission C:\Program Files\Java\jre6\lib\lo 
gging.properties read) 
access: access allowed (java.io.FilePermission C:\Program Files\Java\jre6\lib\lo 
gging.properties read) 
access: access allowed (java.util.logging.LoggingPermission control) 
access: access allowed (java.util.logging.LoggingPermission control) 
access: access allowed (java.util.logging.LoggingPermission control) 
access: access allowed (java.util.logging.LoggingPermission control) 
access: access allowed (java.util.logging.LoggingPermission control) 
access: access allowed (java.util.logging.LoggingPermission control) 
access: access allowed (java.util.PropertyPermission line.separator read) 
access: access allowed (java.util.PropertyPermission line.separator read) 
access: access allowed (java.util.logging.LoggingPermission control) 
access: access allowed (java.util.PropertyPermission sun.rmi.transport.tcp.logLe 
vel read) 
access: access allowed (java.util.logging.LoggingPermission control) 
access: access allowed (java.util.PropertyPermission sun.rmi.transport.tcp.maxCo 
nnectionThreads read) 
access: access allowed (java.util.PropertyPermission sun.rmi.transport.tcp.threa 
dKeepAliveTime read) 
access: access allowed (java.util.PropertyPermission sun.rmi.transport.proxy.log 
Level read) 
access: access allowed (java.util.logging.LoggingPermission control) 
access: access allowed (java.util.PropertyPermission sun.rmi.transport.proxy.con 
nectTimeout read) 
access: access allowed (java.util.PropertyPermission sun.rmi.transport.proxy.eag 
erHttpFallback read) 
access: access allowed (java.util.PropertyPermission http.proxyHost read) 
access: access allowed (java.util.PropertyPermission proxyHost read) 
access: access allowed (java.util.PropertyPermission java.rmi.server.disableHttp 
read) 
access: access allowed (java.util.PropertyPermission sun.rmi.transport.tcp.readT 
imeout read) 
access: access allowed (java.util.PropertyPermission sun.rmi.server.logLevel rea 
d) 
access: access allowed (java.util.logging.LoggingPermission control) 
access: access allowed (java.util.PropertyPermission java.rmi.server.ignoreStubC 
lasses read) 
access: access allowed (java.util.logging.LoggingPermission control) 
access: access allowed (java.util.PropertyPermission sun.rmi.client.logCalls rea 
d) 
access: access allowed (java.util.logging.LoggingPermission control) 
access: access allowed (java.util.PropertyPermission java.rmi.server.hostname re 
ad) 
access: access allowed (java.util.PropertyPermission sun.rmi.transport.connectio 
nTimeout read) 
access: access allowed (java.util.PropertyPermission sun.rmi.transport.tcp.hands 
hakeTimeout read) 
access: access allowed (java.util.PropertyPermission sun.rmi.transport.tcp.respo 
nseTimeout read) 
access: access allowed (java.util.logging.LoggingPermission control) 
access: access allowed (java.util.PropertyPermission sun.rmi.runtime.schedulerTh 
reads read) 
access: access allowed (java.lang.RuntimePermission sun.rmi.runtime.RuntimeUtil. 
getInstance) 
access: access allowed (java.net.SocketPermission localhost resolve) 
access: access allowed (java.lang.RuntimePermission loadLibrary.net) 
access: access allowed (java.io.FilePermission C:\Program Files\Java\jre6\bin\ne 
t.dll read) 
access: access denied (java.net.SocketPermission 127.0.0.1:1099 connect,resolve) 

java.lang.Exception: Stack trace 
     at java.lang.Thread.dumpStack(Unknown Source) 
     at java.security.AccessControlContext.checkPermission(Unknown Source) 
     at java.security.AccessController.checkPermission(Unknown Source) 
     at java.lang.SecurityManager.checkPermission(Unknown Source) 
     at java.lang.SecurityManager.checkConnect(Unknown Source) 
     at java.net.Socket.connect(Unknown Source) 
     at java.net.Socket.connect(Unknown Source) 
     at java.net.Socket.(Unknown Source) 
     at java.net.Socket.(Unknown Source) 
     at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(Unknown S 
ource) 
     at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(Unknown S 
ource) 
     at sun.rmi.transport.tcp.TCPEndpoint.newSocket(Unknown Source) 
     at sun.rmi.transport.tcp.TCPChannel.createConnection(Unknown Source) 
     at sun.rmi.transport.tcp.TCPChannel.newConnection(Unknown Source) 
     at sun.rmi.server.UnicastRef.newCall(Unknown Source) 
     at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source) 
     at client.ComputePi.main(ComputePi.java:25) 
access: access allowed (java.security.SecurityPermission getPolicy) 
access: access allowed (java.io.FilePermission C:\home\jones\src read) 
access: domain that failed ProtectionDomain (file:/C:/home/jones/src/) 
[email protected] 
    
[email protected] (
(java.lang.RuntimePermission stopThread) 
(java.lang.RuntimePermission exitVM) 
(java.io.FilePermission \C:\home\jones\src\- read) 
(java.util.PropertyPermission line.separator read) 
(java.util.PropertyPermission java.vm.version read) 
(java.util.PropertyPermission java.vm.specification.version read) 
(java.util.PropertyPermission java.vm.specification.vendor read) 
(java.util.PropertyPermission java.vendor.url read) 
(java.util.PropertyPermission java.vm.name read) 
(java.util.PropertyPermission os.name read) 
(java.util.PropertyPermission java.vm.vendor read) 
(java.util.PropertyPermission path.separator read) 
(java.util.PropertyPermission java.specification.name read) 
(java.util.PropertyPermission os.version read) 
(java.util.PropertyPermission os.arch read) 
(java.util.PropertyPermission java.class.version read) 
(java.util.PropertyPermission java.version read) 
(java.util.PropertyPermission file.separator read) 
(java.util.PropertyPermission java.vendor read) 
(java.util.PropertyPermission java.vm.specification.name read) 
(java.util.PropertyPermission java.specification.version read) 
(java.util.PropertyPermission java.specification.vendor read) 
(java.net.SocketPermission localhost:1024- listen,resolve) 
) 


ComputePi exception: 
java.security.AccessControlException: access denied (java.net.SocketPermission 1 
27.0.0.1:1099 connect,resolve) 
     at java.security.AccessControlContext.checkPermission(Unknown Source) 
     at java.security.AccessController.checkPermission(Unknown Source) 
     at java.lang.SecurityManager.checkPermission(Unknown Source) 
     at java.lang.SecurityManager.checkConnect(Unknown Source) 
     at java.net.Socket.connect(Unknown Source) 
     at java.net.Socket.connect(Unknown Source) 
     at java.net.Socket.(Unknown Source) 
     at java.net.Socket.(Unknown Source) 
     at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(Unknown S 
ource) 
     at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(Unknown S 
ource) 
     at sun.rmi.transport.tcp.TCPEndpoint.newSocket(Unknown Source) 
     at sun.rmi.transport.tcp.TCPChannel.createConnection(Unknown Source) 
     at sun.rmi.transport.tcp.TCPChannel.newConnection(Unknown Source) 
     at sun.rmi.server.UnicastRef.newCall(Unknown Source) 
     at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source) 
     at client.ComputePi.main(ComputePi.java:25)

В строке 80:

 
access: access allowed (java.net.SocketPermission myComputer resolve)

однако AИз ОС линия 99 до 111

 
access: access denied (java.net.SocketPermission myComputer resolve) 
java.lang.Exception: Stack trace 
     at java.lang.Thread.dumpStack(Unknown Source) 
     at java.security.AccessControlContext.checkPermission(Unknown Source) 
     at java.security.AccessController.checkPermission(Unknown Source) 
     at java.lang.SecurityManager.checkPermission(Unknown Source) 
     at java.lang.SecurityManager.checkConnect(Unknown Source) 
     at java.net.InetAddress.getLocalHost(Unknown Source) 
     at sun.rmi.transport.tcp.TCPEndpoint.(Unknown Source) 
     at java.rmi.registry.LocateRegistry.getRegistry(Unknown Source) 
     at java.rmi.registry.LocateRegistry.getRegistry(Unknown Source) 
     at java.rmi.registry.LocateRegistry.getRegistry(Unknown Source) 
     at client.ComputePi.main(ComputePi.java:24)

Проблема решена, см. my another post

источник

2010-02-26 user200340

ссылка под названием «my another post» теперь 404. – diciu

Как вы начинаете дело? Вы указываете файл политики при запуске клиента?

Ваша командная строка для запуска клиента должен выглядеть следующим образом:

java -cp c:\home\jones\src;c:\home\jones\public_html\classes\compute.jar 
    -Djava.rmi.server.codebase=file:/c:/home/jones/public_html/classes/ 
    -Djava.security.policy=client.policy 
    client.ComputePi zaphod.east.sun.com 45

Update: Вы писали:

если я двигаю клиента.Файл политики в C:\Program Files\Java\jre6\lib\security

Вы должны изменить пути вы видите на примерах (c:\home\jones и т.д.) в реальные, которые вы используете на вашем компьютере (где ваш код база и файлы безопасность).

источник

2010-02-26 13:13:03 JRL

Я обновил вопрос, как мне запустить клиент. Спасибо за быстрый ответ. – user200340

Это фактические пути (c: \ home \ jones и т. Д.) На моей машине. что я имею ввиду «если я перемещаю файл client.policy ...» заключается в том, что я использовал положенный файл безопасности клиента в путь «C: \ home \ jones \ policy \ client.policy» и запустил клиент -Djava. security.policy = C: \ главная \ \ Джоунс политика \ client.policy. Чтобы выполнить то, что было предложено, я переместил client.policy в «C: \ Program Files \ Java \ jre6 \ lib \ security». – user200340

RMI java.security.AccessControlException

ответ

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