Thanks for these informations...
You're right, I forfot to add ApplicationManager jar in lib folder.
Finally, I updated XE 1.5 to XEM 1.3RC1 : everything seems to work fine.
Next update, I'll use XEM.
One question again : after updating to XEM 1.3RC1, I tried to import
xwiki-enterprise-manager-application-xem-1.3-rc-1.xar and I still have
an error on XemManager.Install (on a previous thread (11/06/2008), you
told me it's not a needed page... I created a Jira issue
http://jira.xwiki.org/jira/browse/XEM-118?page=com.atlassian.jira.plugin.sy…
  closed by Sergiu Dumitriu for non-reproductible reason.
But I still have that problem. Here's the log :
2008-08-04 14:05:05,375
[
https://sid-sicap.aphp.fr/xwiki/bin/import/XWiki/Import?editor=globaladmin&…]
[TP-Processor8] WARN  util.JDBCExceptionReporter      - SQL Error: 1400,
SQLState: 23000
2008-08-04 14:05:05,375
[
https://sid-sicap.aphp.fr/xwiki/bin/import/XWiki/Import?editor=globaladmin&…]
[TP-Processor8] ERROR util.JDBCExceptionReporter      - ORA-01400:
impossible d'insérer NULL dans
("XWIKI"."XWIKIOBJECTS"."XWO_CLASSNAME")
2008-08-04 14:05:05,375
[
https://sid-sicap.aphp.fr/xwiki/bin/import/XWiki/Import?editor=globaladmin&…]
[TP-Processor8] ERROR .AbstractFlushingEventListener  - Could not
synchronize database state with session
org.hibernate.exception.ConstraintViolationException: could not insert:
[com.xpn.xwiki.objects.BaseObject]
        at
org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:71)
        at
org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
        at
org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2267)
        at
org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2660)
        at
org.hibernate.action.EntityInsertAction.execute(EntityInsertAction.java:56)
        at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:250)
        at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:234)
        at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:141)
        at
org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
        at
org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
        at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
        at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
        at
org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
        at
com.xpn.xwiki.store.XWikiHibernateBaseStore.endTransaction(XWikiHibernateBaseStore.java:816)
        at
com.xpn.xwiki.store.XWikiHibernateBaseStore.endTransaction(XWikiHibernateBaseStore.java:787)
        at
com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiDoc(XWikiHibernateStore.java:560)
        at
com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:131)
        at
com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:124)
        at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1268)
        at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1230)
        at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1225)
        at com.xpn.xwiki.plugin.packaging.Package.installDocument(Package.java:604)
        at com.xpn.xwiki.plugin.packaging.Package.install(Package.java:534)
        at com.xpn.xwiki.plugin.packaging.PackageAPI.install(PackageAPI.java:225)
        at com.xpn.xwiki.web.ImportAction.render(ImportAction.java:89)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:216)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115)
        at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
        at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
        at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
        at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:287)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
        at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
        at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
        at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)
        at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
        at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767)
        at
org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697)
        at
org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889)
        at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
        at java.lang.Thread.run(Unknown Source)
Caused by: java.sql.SQLException: ORA-01400: impossible d'insérer NULL
dans ("XWIKI"."XWIKIOBJECTS"."XWO_CLASSNAME")
        at
oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
        at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:331)
        at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:288)
        at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:743)
        at
oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:216)
        at
oracle.jdbc.driver.T4CPreparedStatement.executeForRows(T4CPreparedStatement.java:955)
        at
oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1168)
        at
oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3316)
        at
oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:3400)
        at
org.apache.commons.dbcp.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java:101)
        at
org.apache.commons.dbcp.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java:101)
        at
org.hibernate.jdbc.NonBatchingBatcher.addToBatch(NonBatchingBatcher.java:23)
        at
org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2247)
        ... 51 more
2008-08-04 14:05:05,390
[
https://sid-sicap.aphp.fr/xwiki/bin/import/XWiki/Import?editor=globaladmin&…]
[TP-Processor8] ERROR packaging.Package               - Failed to save
document XemManager.Install
It seems to be a bug over Oracle 10.2 and if I can help you to find the
reason (I'm not java developper), telle me what I can do.
Gaëtan
Thomas Mortagne a écrit :
  On Mon, Aug 4, 2008 at 12:25 PM, Gaëtan GUYODO
 <gaetan.guyodo(a)lrb.aphp.fr> wrote:
  The problem is not in the xwiki.cfg,
ApplicationManagerPlugin and
 WikiManagerPlugin were added before restarting Tomcat. 
 Are you sure ApplicationManager jar is in lib folder ?
  About XEM, I was not sure of the way to do that
migration : from XE or
 from XEM ? I choosed XE, but it seems not to be the best choice. 
 If you plan to use a wiki farm XEM has been designed just for that and
 is just a packaged XE+appmanager+wikiManager+customized default
 xwiki.cfg.
 For the migration it works exactly the same as XE migration with some
 more wiki pages and jars as you can see in the release note.
  Is it possible to update XE1.5 to XEM (based on
the same version of XE) ?
 And why don't you "parralelize" versions of XE and XEM ? I have to say
 that the relation between XE 1.5 and XEM 1.3rc1 is not so evident ! (and
 maybe I'm wrong...) 
 XEM is way younger than XE so it has a different level of version but
 it is synchronised : XE branch version is always XEM +0.2.X, so XEM
 1.3.X is based on XE 1.5.X etc. I just added some documentation about
 it on download page (thanks for the remainder ;)).
  Anyway, I'll try to update these plugins.
 Gaëtan
 Thomas Mortagne a écrit :
  On Mon, Aug 4, 2008 at 11:27 AM, Gaëtan GUYODO
 <gaetan.guyodo(a)lrb.aphp.fr> wrote:
  Hi,
 I was on 1.5M2 multixwikis installation.
 I decided to migrate to 1.5 final release.
 Update seems to be OK, I started that 1.5 final release, my 3 databases
 (for my 3 wikis) are migrated to "New storage version is now [7351]".
 But just after these db migrations, I got that log :
 2008-08-04 11:28:42,953 [
https://doc-sicap.aphp.fr/xwiki/bin/view/Main/]
 [TP-Processor3] ERROR plugin.XWikiPluginManager       - Cannot
 initialize plugin
 [com.xpn.xwiki.plugin.applicationmanager.ApplicationManagerPlugin]. This
 plugin will not be available.
 java.lang.ClassNotFoundException:
 com.xpn.xwiki.plugin.applicationmanager.ApplicationManagerPlugin
        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(Unknown Source)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Unknown Source)
        at
 com.xpn.xwiki.plugin.XWikiPluginManager.addPlugin(XWikiPluginManager.java:86)
        at
 com.xpn.xwiki.plugin.XWikiPluginManager.addPlugins(XWikiPluginManager.java:120)
        at com.xpn.xwiki.XWiki.preparePlugins(XWiki.java:1005)
        at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:728)
        at com.xpn.xwiki.XWiki.<init>(XWiki.java:652)
        at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:312)
        at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:383)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:135)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115)
        at
 org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
        at
 org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
        at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
        at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:287)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at
 org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at
 org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
        at
 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
        at
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at
 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
        at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)
        at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
        at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767)
        at
 org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697)
        at
 org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889)
        at
 org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
        at java.lang.Thread.run(Unknown Source)
 2008-08-04 11:28:42,953 [
https://doc-sicap.aphp.fr/xwiki/bin/view/Main/]
 [TP-Processor3] ERROR plugin.XWikiPluginManager       - Cannot
 initialize plugin [com.xpn.xwiki.plugin.wikimanager.WikiManagerPlugin].
 This plugin will not be available.
 java.lang.ClassNotFoundException:
 com.xpn.xwiki.plugin.wikimanager.WikiManagerPlugin
        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(Unknown Source)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Unknown Source)
        at
 com.xpn.xwiki.plugin.XWikiPluginManager.addPlugin(XWikiPluginManager.java:86)
        at
 com.xpn.xwiki.plugin.XWikiPluginManager.addPlugins(XWikiPluginManager.java:120)
        at com.xpn.xwiki.XWiki.preparePlugins(XWiki.java:1005)
        at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:728)
        at com.xpn.xwiki.XWiki.<init>(XWiki.java:652)
        at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:312)
        at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:383)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:135)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115)
        at
 org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
        at
 org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
        at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
        at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:287)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at
 org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at
 org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
        at
 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
        at
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at
 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
        at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)
        at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
        at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767)
        at
 org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697)
        at
 org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889)
        at
 org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
        at java.lang.Thread.run(Unknown Source)
 Is there anything to do about plugins when migrating xwiki ?
 Is there a bug ? 
 ApplicationManager is not an XE plugin (as well as WikiManager)
so it
 is not listed in XE default xwiki.cfg, I guess you simply forgot to
 add them there.
 By the way a new XEM RC release base on XE 1.5 has been released last
 week, you should upgrade using it in place of XE 1.5. It contains
 bugfixes and imporovements on ApplicationManager and WikiManager
 plugins.
  --
 __________________________________________
              Gaëtan GUYODO
            Chargé de mission
 Centre Antipoison - Hôpital Fernand WIDAL
      200, rue du faubourg St Denis
          75475 PARIS Cedex 10
 Tél: 01 40 05 49 63 / Fax: 01 40 05 48 56
 __________________________________________
 _______________________________________________
 users mailing list
 users(a)xwiki.org
 
http://lists.xwiki.org/mailman/listinfo/users
  
  --
 __________________________________________
              Gaëtan GUYODO
            Chargé de mission
 Centre Antipoison - Hôpital Fernand WIDAL
      200, rue du faubourg St Denis
          75475 PARIS Cedex 10
 Tél: 01 40 05 49 63 / Fax: 01 40 05 48 56
 __________________________________________
 _______________________________________________
 users mailing list
 users(a)xwiki.org
 
http://lists.xwiki.org/mailman/listinfo/users
  
  
--
__________________________________________
              Gaëtan GUYODO
            Chargé de mission
Centre Antipoison - Hôpital Fernand WIDAL
      200, rue du faubourg St Denis
          75475 PARIS Cedex 10
Tél: 01 40 05 49 63 / Fax: 01 40 05 48 56
__________________________________________