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POjava.rmi.UnmarshalException: error unmarshalling return; nested exception is:java.lang.ClassNotFoundException:
 

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  1. POjava.rmi.UnmarshalException: error unmarshalling return; nested exception is:java.lang.ClassNotFoundException:
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    <p>I have the following situation:</p> <p>Using RMI, i noticed that under a specific situation, the RMI client did not have the class whose instance was sent via RMI. So, I sent the class in the shape of Byte [] and then loaded it with a class loader i defined.</p> <p>The code in the client side is something like:</p> <pre><code>pp = plugins.getPanelClasses(); //RMI method panelClassLoader pcl = new panelClassLoader(); //simple class loader defined by me String name = pcl.defineClass(pp); </code></pre> <p>Then, i ask in the client side by the instance of the class loaded:</p> <pre><code>HashMap&lt;String, PluginPanel&gt; panels = null; try { panels = plugins.getSettingsPanels(); } catch (RemoteException ex) { Logger.getLogger(ServerOptions.class.getName()).log(Level.SEVERE, null, ex); } </code></pre> <p>PluginPanel is an interface whose implementing classes are not always in the client...</p> <p>and the class loader is:</p> <pre><code>private class panelClassLoader extends ClassLoader { public panelClassLoader(ClassLoader parent) { super(parent); } public panelClassLoader() { super(getSystemClassLoader()); } public String defineClass(byte[] b) { Class c = super.defineClass(null, b, 0, b.length); resolveClass(c); return c.getName(); } } </code></pre> <p>Nevertheless, I'm stuck with the following error: java.rmi.UnmarshalException: error unmarshalling return; nested exception is: java.lang.ClassNotFoundException: pt.ua.dicoogle.IndexPlugin.CPanel (no security manager: RMI class loader disabled) at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:178) at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:178) at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:132) at $Proxy22.getSettingsPanels(Unknown Source) at pt.ua.dicoogle.rGUI.client.windows.ServerOptions.(ServerOptions.java:176)</p> <p>Caused by: java.lang.ClassNotFoundException: pt.ua.dicoogle.IndexPlugin.CPanel (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 java.util.HashMap.readObject(HashMap.java:1030) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752) 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.UnicastRef.invoke(UnicastRef.java:155)</p> <p>Any sugestion?</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USCarlos Ferreira
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. This table or related slice is empty.
 

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