Cannot evict node if the node is put into cache with FQN gen

[jeffreyai]

Hi there,

We are using Jboss Cache 1.4.0.GA and are running into an eviction problem. It seems any node put into cache with Long-type FQN cannot be evicted.
The code is like below.

Fqn BASE_FQN = new Fqn("xx/product");
final Fqn fqn = new Fqn(BASE_FQN, Long.valueOf(productUid));
cache.put(fqn, product);

We tried to trace into the TreeCache.java.
It seems the code always trying to remove a child node by giving a String key.
Here are the code section I quoted from the "_remove" method in TreeCache.java.

 // remove subtree from parent
 parent_node.removeChild(n.getName());

If we change the code to use String, then eviction works fine.

final Fqn fqn = new Fqn(BASE_FQN, String.valueOf(productUid));

Do I missed something or is this a bug.
BTW, Our eviction strategy is defined as below:

 <!-- Name of the eviction policy class. -->
 <attribute name="EvictionPolicyClass">
 org.jboss.cache.eviction.LRUPolicy
 </attribute>

 <!-- Specific eviction policy configurations. This is LRU -->
 <attribute name="EvictionPolicyConfig">
 <config>
 <!-- This is the interval (in seconds) to process the node events and also to perform
 sweeping for the size limit and age-out nodes. -->
 <attribute name="wakeUpIntervalSeconds">10</attribute>

 <!-- Cache wide default -->
 <region name="/_default_">
 <!-- This is the maximum number of nodes allowed in this region. Any integer less than or equal to 0
 will throw an exception when the policy provider is being configured for use. -->
 <attribute name="maxNodes">50000</attribute>

 <!-- Time to idle (in seconds) before the node is swept away. 0 denotes no limit. -->
 <attribute name="timeToLiveSeconds">600</attribute>

 <!-- Time an object should exist in TreeCache (in seconds) regardless of idle time before the
 node is swept away. 0 denotes no limit. -->
 <attribute name="maxAgeSeconds">3600</attribute>
 </region>
 </config>
 </attribute>

Thanks in advance.