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<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-US'>Hello:<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-US'><span style='mso-tab-count:
1'>            </span>I
have <span class=SpellE>opencms</span> 5.0 on tomcat 4.1.24 with an Oracle
database. Every a few hours I get this error or directly the server don’t
respond. The only solution I have found is to restart the Tomcat server.<o:p></o:p></span></font></p>

<p class=MsoNormal style='text-indent:35.4pt'><font size=2 face=Arial><span
lang=EN-US style='font-size:10.0pt;font-family:Arial;mso-ansi-language:EN-US'>What
could be the problem<span class=GramE>?.</span><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-US'><o:p> </o:p></span></font></p>

<pre><span class=SpellE><font size=2 color=black face="Courier New"><span
lang=EN-US style='font-size:10.0pt;color:black;mso-ansi-language:EN-US'>java.lang.NullPointerException</span></font></span><font
color=black><span lang=EN-US style='color:black;mso-ansi-language:EN-US'><o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>com.opencms.file.CmsRequestContext.getSiteRoot</span>(CmsRequestContext.java:532)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>com.opencms.file.CmsObject.getSiteRoot</span>(CmsObject.java:4039)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>com.opencms.file.CmsObject.readFile</span>(CmsObject.java:2883)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>com.opencms.core.OpenCms.initResource</span>(OpenCms.java:788)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>com.opencms.core.OpenCmsHttpServlet.doGet</span>(OpenCmsHttpServlet.java:306)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>javax.servlet.http.HttpServlet.service</span>(HttpServlet.java:740)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>javax.servlet.http.HttpServlet.service</span>(HttpServlet.java:853)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span></span></font><font
color=black><span lang=FR style='color:black;mso-ansi-language:FR'>at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=FR style='font-size:10.0pt;
color:black;mso-ansi-language:FR'><span style='mso-tab-count:1'>        </span>at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=FR style='font-size:10.0pt;
color:black;mso-ansi-language:FR'><span style='mso-tab-count:1'>        </span></span></font><span
class=GramE><font color=black><span lang=EN-US style='color:black;mso-ansi-language:
EN-US'>at</span></font></span><font color=black><span lang=EN-US
style='color:black;mso-ansi-language:EN-US'> <span class=SpellE>org.apache.catalina.core.StandardWrapperValve.invoke</span>(StandardWrapperValve.java:256)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>org.apache.catalina.core.StandardPipeline.invoke</span>(StandardPipeline.java:480)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>org.apache.catalina.core.ContainerBase.invoke</span>(ContainerBase.java:995)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>org.apache.catalina.core.StandardContextValve.invoke</span>(StandardContextValve.java:191)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>org.apache.catalina.core.StandardPipeline.invoke</span>(StandardPipeline.java:480)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>org.apache.catalina.core.ContainerBase.invoke</span>(ContainerBase.java:995)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>org.apache.catalina.core.StandardContext.invoke</span>(StandardContext.java:2415)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>org.apache.catalina.core.StandardHostValve.invoke</span>(StandardHostValve.java:180)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>org.apache.catalina.valves.ErrorDispatcherValve.invoke</span>(ErrorDispatcherValve.java:171)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>org.apache.catalina.valves.ErrorReportValve.invoke</span>(ErrorReportValve.java:172)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>org.apache.catalina.core.StandardPipeline.invoke</span>(StandardPipeline.java:480)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>org.apache.catalina.core.ContainerBase.invoke</span>(ContainerBase.java:995)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>org.apache.catalina.core.StandardEngineValve.invoke</span>(StandardEngineValve.java:174)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>org.apache.catalina.core.StandardPipeline.invoke</span>(StandardPipeline.java:480)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>org.apache.catalina.core.ContainerBase.invoke</span>(ContainerBase.java:995)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>org.apache.jk.server.JkCoyoteHandler.invoke</span>(JkCoyoteHandler.java:261)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>org.apache.jk.common.HandlerRequest.invoke</span>(HandlerRequest.java:360)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>org.apache.jk.common.ChannelSocket.invoke</span>(ChannelSocket.java:604)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>org.apache.jk.common.ChannelSocket.processConnection</span>(ChannelSocket.java:562)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>org.apache.jk.common.SocketConnection.runIt</span>(ChannelSocket.java:679)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run</span>(ThreadPool.java:619)<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span lang=EN-US style='font-size:10.0pt;
color:black;mso-ansi-language:EN-US'><span style='mso-tab-count:1'>        </span><span
class=GramE>at</span> <span class=SpellE>java.lang.Thread.run</span>(Thread.java:536)<o:p></o:p></span></font></pre>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-US'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-US'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-US'>Thanks<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-US'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>

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