308 words

Issue #233 - NullpointerException at a normal select

BugVersion: 2.5.6Priority: NormalStatus: ActiveReplies: 1
2014-10-14 07:08

When I run the following code:

EntityManager em = getEm();
Customer result = null;
try {
    logger.debug("Ident: "+ident);
    result = em.createQuery("Select c from Customer c where c.identifier=:id", Customer.class).setParameter("id", ident).getSingleResult();
} catch (javax.persistence.NoResultException nre) {
} finally {

I get the following error (you can also see the log message containing the String parameter at the top):

09:08:49.496 [http-bio-] DEBUG s.t.c.o.OrganizationService - Ident: default
Oct 14, 2014 9:08:49 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [se.tjanstelogik.contentsite.SiteHtmlServlet] in context with path [/ContentSite] threw exception
[ObjectDB 2.5.6_02] Unexpected exception (Error 990)
  Generated by Java HotSpot(TM) 64-Bit Server VM 1.8.0 (on Mac OS X 10.9.5).
Please report this error on http://www.objectdb.com/database/issue/new
com.objectdb.o.InternalException: java.lang.NullPointerException: null
at com.objectdb.o.ENT.C(ENT.java:437)
at com.objectdb.o.ENT.C(ENT.java:378)
at com.objectdb.o.STA.ae(STA.java:819)
at com.objectdb.o.STM.D(STM.java:371)
at com.objectdb.o.OBC.ag(OBC.java:198)
at com.objectdb.o.OBM.close(OBM.java:196)
at se.tjanstelogik.contentsite.organization.OrganizationService.getCustomerByIdentifier(OrganizationService.java:154)
at se.tjanstelogik.contentsite.ContentServiceFilter.doBeforeProcessing(ContentServiceFilter.java:66)
at se.tjanstelogik.contentsite.ContentServiceFilter.doFilter(ContentServiceFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.__invoke(StandardContextValve.java:123)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.__invoke(StandardHostValve.java:171)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:744)

Running the same query in the explorer generates no errors. I've attached a screenshot with the result of the same query (as you can see from the log/stacktrace, the query parameter is 'default').

This have been working for quite some time, I've also tried to run the DB doctor with the following result:

heintz@heintzmbp /usr/local/objectdb-2.5.6_02/bin> java -cp objectdb.jar com.objectdb.Doctor ../db/my_database_file.odb
ObjectDB Doctor [version 2.5.6_02]
Copyright (c) 2014, ObjectDB Software. All rights reserved.
Scanning the database file...
0MB (total)
Analyzing database structure...
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
No errors have been found

Client version: 2.5.6_02

Server version: 2.5.6_02

heintz's picture
Joined on 2013-10-20
User Post #4
2014-10-14 14:13

The cause of this exception is unclear. The stack trace indicates an unexpected state of one of your persistable types, and if the same code worked well before, it could be the result of a recent schema evolution.

Particularly if you changed an entity class to non entity class, etc. it could be related.

Build 2.5.7_03 includes an attempt to provide a workaround to the specific exception in your stack trace. Please try it. With this new build you may have a similar exception in another place, so please keep reporting.

ObjectDB Support
ObjectDB - Fast Object Database for Java (JPA/JDO)
support's picture
Joined on 2010-05-03
User Post #2,063

Post Reply

Please read carefully the posting instructions - before posting to the ObjectDB website.

  • You may have to disable pop up blocking in order to use the toolbar (e.g. in Chrome).
  • Use ctrl + right click to open the browser context menu in the editing area (e.g. for using a browser spell checker).
  • To insert formatted lines (e.g. Java code, stack trace) - select a style in the toolbar and then insert the text in the new created block.
  • Avoid overflow of published source code examples by breaking long lines.
  • You may mark in paragraph code words (e.g. class names) with the code style (can be applied by ctrl + D).
  • Long stack traces (> 50 lines) and complex source examples (> 100 lines) should be posted as attachments.
Maximum file size: 32 MB