Unable to install the UI with DW with the Admin user on Oracle

Thomas Mortagne added a comment - 23/Mar/15 13:26 - edited XWIKI-11950 now hide the issue. Created XWIKI-11952 for the conflict.

Manuel Smeria added a comment - 23/Mar/15 12:20 This is the way I have set up XWiki: Downloaded 7.0M2 from here: http://download.forge.ow2.org/xwiki/xwiki-enterprise-jetty-hsqldb-7.0-milestone-2.zip Unzip Delete the "data" folder Copy the Oracle JDBC driver in the "lib" folder Edit hibernate.cfg.xml to use Oracle insted of hsqldb Create the db in Oracle using these 2 commands in SQL+: create user xwiki identified by xwiki; grant all privileges to xwiki; Start XWiki The rest is written in the original description of this issue.

Vincent Massol added a comment - 23/Mar/15 11:17 - edited So maybe the difference with Manuel is not oracle/jdbc drivers but the way he sets up/uses XWiki? That's assuming Manuel can reproduce every time.

Guillaume Delhumeau added a comment - 23/Mar/15 10:50 - edited I've retried multiple times, on Windows 7, Java 8 Oracle, Latest snapshots, Oracle Express 11g, with the same JDBC driver than Manuel: I do not reproduce.

Thomas Mortagne added a comment - 19/Mar/15 16:39 All that code should be replaced by Objects.equals

Guillaume Delhumeau added a comment - 19/Mar/15 16:21 The NPE is caused by: https://github.com/xwiki/xwiki-platform/blob/master/xwiki-platform-core/xwiki-platform-oldcore/src/main/java/com/xpn/xwiki/objects/BaseStringProperty.java#L70-70 There is no test about if getValue() returns null (which it does in my case).

Thomas Mortagne added a comment - 19/Mar/15 16:09 Indeed and that's already what was causing the conflict in XWIKI-11854 .

Guillaume Delhumeau added a comment - 19/Mar/15 16:05 tmortagne : There is one mandatory document initializer introduced by XWIKI-11750 .

Thomas Mortagne added a comment - 19/Mar/15 15:21 Still, this conflict is a bug that should be fixed IMO. It's not normal to have a conflict when installing a new wiki. A conflict was the cause of XWIKI-11854 too. About the nullpointer, there is one major difference between Oracle and hsqldb/MySQL: empty string are stored as null in Oracle so we probably ends up with null somewhere the code expect an empty string. Now It's weird that EM tried to merge this document anything since you need a previous version (or a mandatory document initializer) to trigger a merge.

Guillaume Delhumeau added a comment - 19/Mar/15 15:00 - edited Tried to reproduce twice with the following settings: on linux, local build on master (should be equivalent to the last snapshot) - jvm oracle 7 Oracle Database 11g Express Edition on a Windows 7 virtual machine. I was able to install XWiki with DW without any problem Except a strange merge conflicts on XWiki.XWikiAllGroup (syntax 2.0 in the xar instead of 2.1 from oldcore): <org.xwiki.logging.event.LogEvent> <level> ERROR </level> <message> Unexpected exception thrown. Usually means there is a bug in the merge. </message> <argumentArray/> <throwable class= "java.lang.NullPointerException" > <stackTrace> <trace> com.xpn.xwiki.objects.BaseStringProperty.equals(BaseStringProperty.java:70) </trace> <trace> com.xpn.xwiki.doc.XWikiDocument.merge(XWikiDocument.java:8488) </trace> <trace> org.xwiki.extension.xar.internal.handler.packager.DocumentMergeImporter.merge(DocumentMergeImporter.java:145) </trace> <trace> org.xwiki.extension.xar.internal.handler.packager.DocumentMergeImporter.saveDocument(DocumentMergeImporter.java:96) </trace> <trace> org.xwiki.extension.xar.internal.handler.packager.Packager.importDocumentToWiki(Packager.java:223) </trace> <trace> org.xwiki.extension.xar.internal.handler.packager.Packager.importXARToWiki(Packager.java:174) </trace> <trace> org.xwiki.extension.xar.internal.handler.packager.Packager.importXARToWiki(Packager.java:146) </trace> <trace> org.xwiki.extension.xar.internal.handler.packager.Packager.importXAR(Packager.java:136) </trace> <trace> org.xwiki.extension.xar.internal.handler.XarExtensionHandler.installInternal(XarExtensionHandler.java:203) </trace> <trace> org.xwiki.extension.xar.internal.handler.XarExtensionHandler.install(XarExtensionHandler.java:167) </trace> <trace> org.xwiki.extension.handler.internal.DefaultExtensionHandlerManager.install(DefaultExtensionHandlerManager.java:85) </trace> <trace> org.xwiki.extension.job.internal.AbstractExtensionJob.installExtension(AbstractExtensionJob.java:254) </trace> <trace> org.xwiki.extension.job.internal.AbstractExtensionJob.applyAction(AbstractExtensionJob.java:202) </trace> <trace> org.xwiki.extension.job.internal.AbstractExtensionJob.applyActions(AbstractExtensionJob.java:149) </trace> <trace> org.xwiki.extension.job.internal.InstallJob.runInternal(InstallJob.java:148) </trace> <trace> org.xwiki.job.internal.AbstractJob.runInContext(AbstractJob.java:209) </trace> <trace> org.xwiki.job.internal.AbstractJob.run(AbstractJob.java:192) </trace> <trace> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) </trace> <trace> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) </trace> <trace> java.lang.Thread.run(Thread.java:745) </trace> </stackTrace> <suppressedExceptions class= "java.util.Collections$UnmodifiableRandomAccessList" resolves-to= "java.util.Collections$UnmodifiableList" > <c class= "list" /> <list reference= "../c" /> </suppressedExceptions> </throwable> <timeStamp> 1426773078229 </timeStamp> </org.xwiki.logging.event.LogEvent> <org.xwiki.logging.event.EndLogEvent> <marker class= "org.xwiki.logging.marker.EndTranslationMarker" reference= "../../org.xwiki.logging.event.EndLogEvent[2]/marker" /> <level> INFO </level> <message> Done installing document [{}] </message> <argumentArray> <org.xwiki.model.reference.DocumentReference> <name> XWikiAllGroup </name> <parent class= "org.xwiki.model.reference.SpaceReference" > <name> XWiki </name> <parent class= "org.xwiki.model.reference.WikiReference" > <name> xwiki </name> <type> WIKI </type> </parent> <type> SPACE </type> </parent> <type> DOCUMENT </type> <parameters class= "tree-map" > <entry> <string> LOCALE </string> <locale/> </entry> </parameters> </org.xwiki.model.reference.DocumentReference> </argumentArray> <timeStamp> 1426773147703 </timeStamp> </org.xwiki.logging.event.EndLogEvent> But it does not prevent XWiki to work afterwards.