jdk1.4 client<--> jdk1.5 server communication
our dev env is following
* jdk1.4 based eclipse platform
* jdk1.5 based jboss4.03+ ejb3-beta
we develope server, client separatly
we thinked client server server communication has no problem..
but problem happened
our test is fellowing structure
jdk1.4client/client/Client.java
jdk1.4client/cli/Calculator.java
jdk1.5server/bean/CalculatorBean
we compile
jdk1.4client/cli/Calculator.java in 1.4 and deploy in server/lib holder
server successfully deployed
but when client lookup session bean fellowing error occur.
java.lang.UnsupportedClassVersionError: org/jboss/ejb3/JBossProxy (Unsupported major.minor version 49.0) at java.lang.ClassLoader.defineClass0(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:537) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123) at java.net.URLClassLoader.defineClass(URLClassLoader.java:251) at java.net.URLClassLoader.access$100(URLClassLoader.java:55) at java.net.URLClassLoader$1.run(URLClassLoader.java:194) at java.rmi.server.RMIClassLoader$2.loadProxyClass(RMIClassLoader.java:639) at java.rmi.server.RMIClassLoader.loadProxyClass(RMIClassLoader.java:309) at sun.rmi.server.MarshalInputStream.resolveProxyClass(MarshalInputStream.java:241) at java.io.ObjectInputStream.readProxyDesc(ObjectInputStream.java:1469) at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1432) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1626) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1274) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:324) at java.rmi.MarshalledObject.get(MarshalledObject.java:135) at org.jnp.interfaces.MarshalledValuePair.get(MarshalledValuePair.java:57) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:637) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:572) at javax.naming.InitialContext.lookup(InitialContext.java:347) at client.Client.main(Client.java:17)
our constraints is fellowing
* client must run under 1.4
* server code use ejb3(session, entity bean)
any idea including work around will be helpful to me.
thx in advance
