使用Java 9運行應用程序，java.base模塊不會「打開java.io」

我嘗試使用Java 9運行我的應用程序（Java Swing中開發的前端，使用部署在Wildfly 8上的EJB開發的服務器）。當客戶端嘗試建立一個EJB連接得到了以下異常：使用Java 9運行應用程序，java.base模塊不會「打開java.io」

09:53:42,358 INFO [xnio] XNIO version 3.2.0.Final 
09:53:42,465 INFO [nio] XNIO NIO Implementation Version 3.2.0.Final 
09:53:42,507 DEBUG [nio] Started channel thread 'Remoting "config-based-naming-client-endpoint" I/O-1', selector [email protected] 
RmiServiceFactpry ExceptionInInitializerError 
java.lang.ExceptionInInitializerError 
    at org.jboss.ejb.client.remoting.RemotingConnectionEJBReceiver.<init>(RemotingConnectionEJBReceiver.java:148) 
    at org.jboss.ejb.client.remoting.RemotingConnectionEJBReceiver.<init>(RemotingConnectionEJBReceiver.java:106) 
    at org.jboss.ejb.client.EJBClientContext.registerConnection(EJBClientContext.java:465) 
    at org.jboss.naming.remote.client.ejb.RemoteNamingStoreEJBClientHandler.associate(RemoteNamingStoreEJBClientHandler.java:78) 
    at org.jboss.naming.remote.protocol.v1.RemoteNamingStoreV1.<init>(RemoteNamingStoreV1.java:71) 
    at org.jboss.naming.remote.protocol.v1.VersionOne.getRemoteNamingStore(VersionOne.java:50) 
    at org.jboss.naming.remote.protocol.Versions.getRemoteNamingStore(Versions.java:55) 
    at org.jboss.naming.remote.client.RemoteContextFactory.createVersionedStore(RemoteContextFactory.java:73) 
    at org.jboss.naming.remote.client.HaRemoteNamingStore.failOverSequence(HaRemoteNamingStore.java:202) 
    at org.jboss.naming.remote.client.HaRemoteNamingStore.namingStore(HaRemoteNamingStore.java:149) 
    at org.jboss.naming.remote.client.HaRemoteNamingStore.namingOperation(HaRemoteNamingStore.java:130) 
    at org.jboss.naming.remote.client.HaRemoteNamingStore.lookup(HaRemoteNamingStore.java:272) 
    at org.jboss.naming.remote.client.RemoteContext.lookup(RemoteContext.java:79) 
    at org.jboss.naming.remote.client.RemoteContext.lookup(RemoteContext.java:83) 
    at java.naming/javax.naming.InitialContext.lookup(Unknown Source) 
    at com.dataloy.client.core.RmiServiceFactory.createRemote(RmiServiceFactory.java:105) 
    at com.dataloy.client.core.RmiServiceFactory.getServiceImpl(RmiServiceFactory.java:96) 
    at com.dataloy.core.AbstractServiceFactory.getService(AbstractServiceFactory.java:58) 
    at com.dataloy.DataloyEngine.getService(DataloyEngine.java:198) 
    at com.dataloy.DataloyEngine.login(DataloyEngine.java:548) 
    at com.dataloy.client.login.LoginPanel.doLogin(LoginPanel.java:511) 
    at com.dataloy.client.login.LoginPanel.access$500(LoginPanel.java:56) 
    at com.dataloy.client.login.LoginPanel$5.run(LoginPanel.java:452) 
Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make java.io.OptionalDataException(boolean) accessible: module java.base does not "opens java.io" to unnamed module @312002a1 
    at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(Unknown Source) 
    at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(Unknown Source) 
    at java.base/java.lang.reflect.Constructor.checkCanSetAccessible(Unknown Source) 
    at java.base/java.lang.reflect.Constructor.setAccessible(Unknown Source) 
    at org.jboss.marshalling.Marshalling$OptionalDataExceptionCreateAction$1.run(Marshalling.java:385) 
    at org.jboss.marshalling.Marshalling$OptionalDataExceptionCreateAction$1.run(Marshalling.java:381) 
    at java.base/java.security.AccessController.doPrivileged(Native Method) 
    at org.jboss.marshalling.Marshalling$OptionalDataExceptionCreateAction.<init>(Marshalling.java:381) 
    at org.jboss.marshalling.Marshalling$OptionalDataExceptionCreateAction.<init>(Marshalling.java:376) 
    at org.jboss.marshalling.Marshalling.<clinit>(Marshalling.java:374) 
    ... 23 more

我看到有一些問題，在Java 9中引入新的模塊管理，但我不明白什麼應該做的。

問候，安德烈

來源

2017-03-08 Andrea Biasillo

嘗試添加'--add-打開java.base/java.io = ALL-UNNAMED'到java命令行打開java.io包爲反射。背景：http://mail.openjdk.java.net/pipermail/jdk9-dev/2016-November/005276.html –

按this answer你需要添加--add-opens java.base/java.io=ALL-UNNAMED到java命令啓動應用程序。

來源

2017-03-08 15:44:34 Nicolai

添加以下JVM參數：

--add-exports=java.base/sun.nio.ch=ALL-UNNAMED 
--add-opens=java.base/java.lang=ALL-UNNAMED 
--add-opens=java.base/java.lang.reflect=ALL-UNNAMED 
--add-opens=java.base/java.io=ALL-UNNAMED 
--add-exports=jdk.unsupported/sun.misc=ALL-UNNAMED

上述例外它不再被達到，它與此異常之前失敗：

java.lang.ClassNotFoundException: com.dataloy.client.Main 
    at [email protected]/com.sun.deploy.security.DeployURLClassLoader.findClass(Unknown Source) 
    at [email protected]/com.sun.jnlp.JNLPClassLoader.findClass(Unknown Source) 
    at java.base/java.lang.ClassLoader.loadClass(Unknown Source) 
    at [email protected]/com.sun.jnlp.JNLPClassLoader.loadClass(Unknown Source) 
    at java.base/java.lang.ClassLoader.loadClass(Unknown Source) 
    at [email protected]/com.sun.javaws.Launcher.doLaunchApp(Unknown Source) 
    at [email protected]/com.sun.javaws.Launcher.run(Unknown Source) 
    at java.base/java.lang.Thread.run(Unknown Source)

我需要看到更多的模塊，但我掙扎瞭解哪一個。

安德烈

來源

2017-03-10 11:29:16

使用Java 9運行應用程序，java.base模塊不會「打開java.io」

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