- Re: Tutorial: Handling images in your Seam applicati 2007-11-01 - By syzork
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when i call something like em.query(...) returns an exception:
| 16:00:30,890 ERROR [STDERR] java.lang.NullPointerException
| 16:00:30,890 ERROR [STDERR] at com.flavio.b.ArtworkServlet.doGet
(ArtworkServlet.java:59)
| 16:00:30,890 ERROR [STDERR] at javax.servlet.http.HttpServlet.service
(HttpServlet.java:690)
| 16:00:30,890 ERROR [STDERR] at javax.servlet.http.HttpServlet.service
(HttpServlet.java:803)
| 16:00:30,890 ERROR [STDERR] at org.apache.catalina.core
.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
| 16:00:30,890 ERROR [STDERR] at org.apache.catalina.core
.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
| 16:00:31,046 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter
$FilterChainImpl.doFilter(SeamFilter.java:83)
| 16:00:31,046 ERROR [STDERR] at org.jboss.seam.debug.hot.HotDeployFilter
.doFilter(HotDeployFilter.java:68)
| 16:00:31,046 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter
$FilterChainImpl.doFilter(SeamFilter.java:69)
| 16:00:31,046 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter
$FilterChainImpl.doFilter(SeamFilter.java:73)
| 16:00:31,046 ERROR [STDERR] at org.jboss.seam.web.MultipartFilter.doFilter
(MultipartFilter.java:85)
| 16:00:31,125 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter
$FilterChainImpl.doFilter(SeamFilter.java:69)
| 16:00:31,125 ERROR [STDERR] at org.jboss.seam.web.ExceptionFilter.doFilter
(ExceptionFilter.java:64)
| 16:00:31,125 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter
$FilterChainImpl.doFilter(SeamFilter.java:69)
| 16:00:31,125 ERROR [STDERR] at org.jboss.seam.web.RedirectFilter.doFilter
(RedirectFilter.java:44)
| 16:00:31,125 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter
$FilterChainImpl.doFilter(SeamFilter.java:69)
| 16:00:31,125 ERROR [STDERR] at org.ajax4jsf.webapp.BaseXMLFilter
.doXmlFilter(BaseXMLFilter.java:141)
| 16:00:31,125 ERROR [STDERR] at org.ajax4jsf.webapp.BaseFilter.doFilter
(BaseFilter.java:281)
| 16:00:31,125 ERROR [STDERR] at org.jboss.seam.web.Ajax4jsfFilter.doFilter
(Ajax4jsfFilter.java:60)
| 16:00:31,125 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter
$FilterChainImpl.doFilter(SeamFilter.java:69)
| 16:00:31,125 ERROR [STDERR] at org.jboss.seam.web.LoggingFilter.doFilter
(LoggingFilter.java:58)
| 16:00:31,125 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter
$FilterChainImpl.doFilter(SeamFilter.java:69)
| 16:00:31,625 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter.doFilter
(SeamFilter.java:158)
| 16:00:31,625 ERROR [STDERR] at org.apache.catalina.core
.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
| 16:00:31,625 ERROR [STDERR] at org.apache.catalina.core
.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
| 16:00:31,625 ERROR [STDERR] at org.jboss.web.tomcat.filters
.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
| 16:00:31,625 ERROR [STDERR] at org.apache.catalina.core
.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
| 16:00:32,125 ERROR [STDERR] at org.apache.catalina.core
.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
| 16:00:32,125 ERROR [STDERR] at org.apache.catalina.core
.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
| 16:00:32,125 ERROR [STDERR] at org.apache.catalina.core
.StandardContextValve.invoke(StandardContextValve.java:175)
| 16:00:32,125 ERROR [STDERR] at org.jboss.web.tomcat.security
.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
| 16:00:32,125 ERROR [STDERR] at org.apache.catalina.authenticator
.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
| 16:00:32,125 ERROR [STDERR] at org.jboss.web.tomcat.security
.JaccContextValve.invoke(JaccContextValve.java:84)
| 16:00:32,125 ERROR [STDERR] at org.apache.catalina.core.StandardHostValve
.invoke(StandardHostValve.java:127)
| 16:00:32,125 ERROR [STDERR] at org.apache.catalina.valves.ErrorReportValve
.invoke(ErrorReportValve.java:102)
| 16:00:32,125 ERROR [STDERR] at org.jboss.web.tomcat.service.jca
.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
| 16:00:32,125 ERROR [STDERR] at org.apache.catalina.core
.StandardEngineValve.invoke(StandardEngineValve.java:109)
| 16:00:32,125 ERROR [STDERR] at org.apache.catalina.connector.CoyoteAdapter
.service(CoyoteAdapter.java:262)
| 16:00:32,125 ERROR [STDERR] at org.apache.coyote.http11.Http11Processor
.process(Http11Processor.java:844)
| 16:00:32,125 ERROR [STDERR] at org.apache.coyote.http11.Http11Protocol
$Http11ConnectionHandler.process(Http11Protocol.java:583)
| 16:00:32,125 ERROR [STDERR] at org.apache.tomcat.util.net.JIoEndpoint
$Worker.run(JIoEndpoint.java:446)
| 16:00:32,125 ERROR [STDERR] at java.lang.Thread.run(Thread.java:595)
|
i tried comment the line:
EntityManager em = (EntityManager) Component.getInstance("entityManager");
and inject entityManager by hand with @(protected):
@(protected)(create = true, value = "entityManager")
private EntityManager em;
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