Java Client and Tomcat 5

Hello dear list,

I have deploy a WO app as servlet in Tomcat.
I use a Java Client for acccessing this application. Everytthing was ok with Tomcat 4.
I had to upgrade with Tomcat 5.5 and then I have the following exception when the Java client starts :


com.webobjects.foundation.NSForwardException for java.io.IOException: The response from the server was invalid (there may have been 
an exception):  Apache Tomcat/5.5.9 - Error report HTTP Status 404 - 
/DynamicRestaurant/WebObjects/DynamicRestaurant.woa/wo/8xAGOeUm2OSRUBlQbDC0pM/0.0.0.1.0type Status reportmessage 
/DynamicRestaurant/WebObjects/DynamicRestaurant.woa/wo/8xAGOeUm2OSRUBlQbDC0pM/0.0.0.1.0description The requested resource 
(/DynamicRestaurant/WebObjects/DynamicRestaurant.woa/wo/8xAGOeUm2OSRUBlQbDC0pM/0.0.0.1.0) is not available.Apache Tomcat/5.5.9
 at com.webobjects.eodistribution.client.EOHTTPChannel._skipHeadersInResponse(EOHTTPChannel.java:871)
 at com.webobjects.eodistribution.client.EOHTTPChannel._responseToMessage(EOHTTPChannel.java:531)
 at com.webobjects.eodistribution.client.EOHTTPChannel.responseToMessage(EOHTTPChannel.java:603)
 at com.webobjects.eodistribution.client.EODistributedObjectStore._send(EODistributedObjectStore.java:590)
 at com.webobjects.eodistribution.client.EODistributedObjectStore._send(EODistributedObjectStore.java:619)
 at com.webobjects.eodistribution.client.EODistributedObjectStore.objectsWithFetchSpecification(EODistributedObjectStore.java:502)
 at com.webobjects.eocontrol.EOEditingContext.objectsWithFetchSpecification(EOEditingContext.java:4003)
 at com.webobjects.eocontrol.EOEditingContext.objectsWithFetchSpecification(EOEditingContext.java:4381)


Is there any incompatibility between WO 5.2 and Tomcat 5.5 ?
Thanks in advance for any help.



Pierre Gilquin