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40

Spring Data JPA

.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:111) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4779) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5273) at org.apache.catalina.util.LifecycleBase
38

Running ObjectDB on a node that does not have internet connectivity

.http.HttpURLConnection.getInputStream(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.setupCurrentEntity(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.startEntity(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLEntityManager
38

Attempt to execute a query using a closed EntityManager

advance. This is getting me crazy. ObjectDB 2.5.1 and TomEE 1.5.2 org.apache.myfaces.view ... to execute a query using a closed EntityManager at org.apache.myfaces.view.facelets.el.ContextAwareTagMethodExpression.invoke(ContextAwareTagMethodExpression.java:108) at org.apache.myfaces
38

JBOSS AS7 7.1.1 - Entity not persisted and createNamedQuery fire exception

> in the pom.xml when building the war <plugin>     <groupId>org.apache.maven.plugins</groupId ... the full stack trace is: 10:01:22,960 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web ... ] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329
36

newbie - lots of exeptions

.caucho.hessian.server.HessianServlet.service(HessianServlet.java:369) at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1550) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281) at org.apache.catalina.core
36

Query Method NullPointerException on List iteration

(HttpServlet.java:741) ~[tomcat-embed-core-9.0.35.jar:9.0.35] at org.apache.catalina.core ... .35] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.35.jar:9.0.35] at org.apache.tomcat.websocket.server.WsFilter
36

Problem to use find method on an abstract Class: AbstractMethodError is thrown

service thread 1-13) JBoss Web Services - Stack CXF Server 4.0.2.GA 08:17:22,563 INFO [org.apache ... ) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final] at org.apache.catalina.core ... .apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13
35

The server cannot start in CentOS

' is not a valid value for 'NMTOKEN'.         at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:198)         at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:134)         at com.sun.org.apache
34

Getting com.objectdb.o.UserException:

. Please help. com.objectdb.o.UserException: Failed to create a new file 'file:C:\Program Files (x86)\Apache ... (Unknown Source) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3188) at org.apache.catalina.core.StandardContext.start(StandardContext.java:3404) at org.apache
7

Unexpected Exception during commit

.fastmodel.fastplan.db.EntityManagerFactory.doFilter(EntityManagerFactory.java:158) at org.apache ... .apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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