[jboss-user] [JBoss Cache] New message: "jboss cache + derby + cannot find EmbeddedDriver"

Svetoslav aaaa do-not-reply at jboss.com
Tue Mar 16 04:02:29 EDT 2010


User development,

A new message was posted in the thread "jboss cache + derby + cannot find EmbeddedDriver":

http://community.jboss.org/message/532161#532161

Author  : Svetoslav aaaa
Profile : http://community.jboss.org/people/svkap

Message:
--------------------------------------------------------------
Hi all.
 
I am trying to use derby instead of HSQL. Here is my configuration:
 
> --------- Derby Information --------
> JRE - JDBC: Java SE 6 - JDBC 4.0
> [C:\aaDev\pluto-fresh-tomcat6\wtpwebapps\TenzingV2GoProCase\WEB-INF\lib\derby.jar] 10.2.2.0 - (485682)
 
Apparently the embedded driver is in the classpath and can be loaded from my application. However, the cache is throwing ClassNotFoundException.
> org.apache.derby.tools.sysinfo.main(null);
> String driver = "org.apache.derby.jdbc.EmbeddedDriver";
> Class.forName(driver).newInstance();     
>             
> pojoCache = PojoCacheFactory.createCache(configFile);
 
> <loaders passivation="false" shared="false">
>     <preload>
>         <node fqn="/DEFAULT_NODE" />
>     </preload>
> 
>     <!--
>         we can have multiple cache loaders, which get chained
>     -->
>     <loader class="org.jboss.cache.loader.JDBCCacheLoader" async="true"
>         fetchPersistentState="true" ignoreModifications="false"
>         purgeOnStartup="false">
>         <properties>
>             cache.jdbc.table.name=jbosscache
>             cache.jdbc.table.create=true
>             cache.jdbc.table.drop=false
>             cache.jdbc.table.primarykey=jbosscache_pk
>             cache.jdbc.fqn.column=fqn
>             cache.jdbc.fqn.type=VARCHAR(255)
>             cache.jdbc.node.column=node
>             cache.jdbc.node.type=BINARY
>             cache.jdbc.parent.column=parent
>             cache.jdbc.driver=org.apache.derby.jdbc.EmbeddedDriver            
>             cache.jdbc.url=jdbc:derby:c:/cache/derbyDB;create=true
>             cache.jdbc.user=dbuser
>             cache.jdbc.password=pass
>         </properties>
>     </loader>
> 
>     <!--
>         <loader class="org.jboss.cache.loader.JDBCCacheLoader" async="true"
>         fetchPersistentState="true" ignoreModifications="true"
>         purgeOnStartup="true"> <properties> cache.jdbc.table.name=jbosscache
>         cache.jdbc.table.create=true cache.jdbc.table.drop=true </properties>
> 
>         <singletonStore enabled="true"
>         class="org.jboss.cache.loader.SingletonStoreCacheLoader">
>         <properties> pushStateWhenCoordinator=true
>         pushStateWhenCoordinatorTimeout=20000 </properties> </singletonStore>
>         </loader>
>     -->
> </loaders>
 
Here is the exceptioon:
 
> [ERROR] org.jboss.cache.loader.NonManagedConnectionFactory: Failed to load driver org.apache.derby.jdbc.EmbeddedDriver            
> java.lang.ClassNotFoundException: org.apache.derby.jdbc.EmbeddedDriver            
>     at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1358)
>     at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1204)
>     at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
>     at java.lang.Class.forName0(Native Method)
>     at java.lang.Class.forName(Class.java:169)
>     at org.jboss.cache.loader.NonManagedConnectionFactory.loadDriver(NonManagedConnectionFactory.java:218)
>     at org.jboss.cache.loader.NonManagedConnectionFactory.start(NonManagedConnectionFactory.java:59)
>     at org.jboss.cache.loader.AdjListJDBCCacheLoader.start(AdjListJDBCCacheLoader.java:284)
>     at org.jboss.cache.loader.JDBCCacheLoader.start(JDBCCacheLoader.java:396)
>     at org.jboss.cache.loader.AbstractDelegatingCacheLoader.start(AbstractDelegatingCacheLoader.java:185)
>     at org.jboss.cache.loader.AsyncCacheLoader.start(AsyncCacheLoader.java:305)
>     at org.jboss.cache.loader.CacheLoaderManager.startCacheLoader(CacheLoaderManager.java:461)
>     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 org.jboss.cache.util.reflect.ReflectionUtil.invokeAccessibly(ReflectionUtil.java:144)
>     at org.jboss.cache.factories.ComponentRegistry$PrioritizedMethod.invoke(ComponentRegistry.java:1012)
>     at org.jboss.cache.factories.ComponentRegistry.internalStart(ComponentRegistry.java:778)
>     at org.jboss.cache.factories.ComponentRegistry.start(ComponentRegistry.java:632)
>     at org.jboss.cache.invocation.CacheInvocationDelegate.start(CacheInvocationDelegate.java:345)
>     at org.jboss.cache.DefaultCacheFactory.createCache(DefaultCacheFactory.java:120)
>     at org.jboss.cache.DefaultCacheFactory.createCache(DefaultCacheFactory.java:92)
>     at org.jboss.cache.pojo.impl.PojoCacheImpl.<init>(PojoCacheImpl.java:58)
>     at org.jboss.cache.pojo.PojoCacheFactory.createCache(PojoCacheFactory.java:29)

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