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Remove an entity which attributes were changed - OptimisticLockException

We use an OSGi environment and we have three OSGi plugins.   In plugin A an entity is loaded and the entity is passed to plugin B. Plugin B changes an attribute on the entity. Plugin C removes the entity from the database.

BeanCreationException in spring data JPA with objectDB

) at org.mortbay.jetty.plugin.Jetty6PluginWebAppContext.doStart(Jetty6PluginWebAppContext.java:110 ... :39) at org.mortbay.jetty.plugin.Jetty6PluginServer.start(Jetty6PluginServer.java:132) at org.mortbay.jetty.plugin.AbstractJettyMojo.startJetty(AbstractJettyMojo.java:371) at org.mortbay.jetty.plugin

ClassCastException of same object type

objects and retrieving objects ok in the main project. However, when I make a plugin for the project ... /swimming, etc results. The core of the projects works as expected. The problem is in a plugin I am making for the project to do team scoring. (I expect I will have similar problems in other plugins I

com.objectdb.o.InternalException

;     <build>         <plugins>             <plugin>                 <groupId>org.apache.maven.plugins</groupId>                

JBOSS AS7 7.1.1 - Entity not persisted and createNamedQuery fire exception

when building the war <plugin>     <groupId>org.apache.maven.plugins</groupId>     <artifactId>maven-war-plugin< ... /objectdb*.jar</packagingExcludes>     </configuration> </plugin>

Eclipse/JPA Spring MVC Web Tutorial

>m2eclipse (Maven plugin) including Maven Integration for WTP (in m2eclipse extras

Step 7: Run the Spring Web App

the web application using the embedded Maven Jetty plugin: Right click

Step 1: Install BIRT and ObjectDB Driver

installing the BIRT plugins using

Step 7: Run the Spring Web App

Maven Jetty plugin: Right click the project node and select Custom >

[ODB1] Chapter 3 - Persistent Classes

), but in most Java IDEs a plugin is required to integrate a JDO enhancer into the IDE Build command. A simple alternative that does not require a plugin and works on any Java IDE (and also from