How can I connect oracle coherence remote cluster using java - oracle-coherence

Question

There is a coherence cluster (with a cache by name mycache) that is runnig on ip address xxx.xxx.xxx.xxx (not localhost). I am trying to connect it and read from cache using java.
This is my Reader class:
import com.tangosol.net.CacheFactory;
import com.tangosol.net.NamedCache;
public class Reader {
public static void main(String[] args) {
NamedCache cache = CacheFactory.getCache("mycache");
System.out.println("Value in cache is: " + cache.get("key1"));
}
}
I am using Intellij IDEA, in vm option for reader I added this line:
-Dtangosol.coherence.cacheconfig=mycache.xml
and this is mycache.xml file:
<?xml version='1.0'?>
<coherence xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://xmlns.oracle.com/coherence/coherence-operational-config"
xsi:schemaLocation="http://xmlns.oracle.com/coherence/coherence-operational-config
coherence-operational-config.xsd"
xml-override="{tangosol.coherence.override /tangosol-coherence-override-{mode}.xml}">
<cluster-config>
<member-identity>
<cluster-name>RemoteCluster</cluster-name>
</member-identity>
<unicast-listener>
<well-known-addresses>
<socket-address id="1">
<address>192.168.104.160</address>
<port>8088</port>
</socket-address>
</well-known-addresses>
</unicast-listener>
</cluster-config>
</coherence>
when I run reader.main() I get this exception:
Problem : An ElementProcessor could not be located for the element [coherence]
Advice : The specified element is unknown to the NamespaceHandler implementation. Perhaps the xml element is foreign to the Xml Namespace?
at com.tangosol.util.Base.ensureRuntimeException(Base.java:286)
at com.tangosol.net.ScopedCacheFactoryBuilder.instantiateFactory(ScopedCacheFactoryBuilder.java:433)
at com.tangosol.net.ScopedCacheFactoryBuilder.buildFactory(ScopedCacheFactoryBuilder.java:385)
at com.tangosol.net.ScopedCacheFactoryBuilder.getFactory(ScopedCacheFactoryBuilder.java:267)
at com.tangosol.net.ScopedCacheFactoryBuilder.getConfigurableCacheFactory(ScopedCacheFactoryBuilder.java:119)
at com.tangosol.net.CacheFactory.getConfigurableCacheFactory(CacheFactory.java:127)
at com.tangosol.net.CacheFactory.getCache(CacheFactory.java:205)
at com.tangosol.net.CacheFactory.getCache(CacheFactory.java:182)
at Reader.main(Reader.java:11)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)
Caused by: com.tangosol.config.ConfigurationException: Configuration Exception
-----------------------
Problem : An ElementProcessor could not be located for the element [coherence]
Advice : The specified element is unknown to the NamespaceHandler implementation. Perhaps the xml element is foreign to the Xml Namespace?

Answer 1

it looks like the problem in the mycache.xml. Those elements used when you want to set up cluster member, while you want to connect a client.
Assuming that "mycache" schema exists on remote cluster try to change the mycache.xml with following:
<?xml version="1.0"?>
<!DOCTYPE cache-config SYSTEM "cache-config.dtd">
<cache-config xmlns="http://schemas.tangosol.com/cache">
<caching-scheme-mapping>
<cache-mapping>
<cache-name>mycache</cache-name>
<scheme-name>extend-dist</scheme-name>
</cache-mapping>
</caching-scheme-mapping>
<caching-schemes>
<remote-cache-scheme>
<scheme-name>extend-dist</scheme-name>
<service-name>ExtendTcpCacheService</service-name>
<initiator-config>
<tcp-initiator>
<remote-addresses>
<socket-address>
<address>192.168.104.160</address>
<port>8088</port>
</socket-address>
</remote-addresses>
</tcp-initiator>
<outgoing-message-handler>
<request-timeout>20s</request-timeout>
</outgoing-message-handler>
</initiator-config>
</remote-cache-scheme>
</caching-schemes>
</cache-config>
Note: if remote cluster uses POF serialization for mycache you'll have to add POF mapping and configuration -Dtangosol.pof.enabled=true

Answer 2

Your xml file is an operational config rather than cache config. To use this configuration, run your programm with:
-Dtangosol.coherence.override=mycache.xml
instead of:
-Dtangosol.coherence.cacheconfig=mycache.xml
BTW you should rename mycache.xml to e.g. operational-config.xml in order to not confuse it with cache configuration.