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https://issues.apache.org/jira/browse/TRINIDAD-1558?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Angel updated TRINIDAD-1558:
----------------------------
Status: Patch Available (was: Open)
> java.lang.NullPointerException: version must be non-null with Googlebot agent
> (trindad trunk)
> ----------------------------------------------------------------------------------------------
>
> Key: TRINIDAD-1558
> URL: https://issues.apache.org/jira/browse/TRINIDAD-1558
> Project: MyFaces Trinidad
> Issue Type: Bug
> Affects Versions: 1.2.13-core
> Environment: Linux 2.6 Java(TM) SE Runtime Environment (build
> 1.6.0_16-b01) tomcat 6.0.18 myfaces-api/impl-1.2.7 trinidad-api/impl
> 1.2.13-SNAPSHOT (trunk)
> Reporter: Angel
> Priority: Critical
>
> when request with the header of Googlebots comes
> org/apache/myfaces/trinidadinternal/agent/AgentImpl.java gets initialized
> with String _agent = NULL; and String _agentVersion = NULL; and a NPE is
> thrown:
> java.lang.NullPointerException: version must be non-null
> at
> org.apache.myfaces.trinidad.context.Version._checkNonEmptyString(Version.java:197)
> at org.apache.myfaces.trinidad.context.Version.<init>(Version.java:69)
> at org.apache.myfaces.trinidad.context.Version.<init>(Version.java:54)
> at
> org.apache.myfaces.trinidadinternal.style.util.NameUtils._isBrowserAndVersionMatch(NameUtils.java:640)
> at
> org.apache.myfaces.trinidadinternal.style.util.NameUtils.getContextName(NameUtils.java:344)
> at
> org.apache.myfaces.trinidadinternal.style.cache.FileSystemStyleCache.getTargetStyleSheetName(FileSystemStyleCache.java:325)
> at
> org.apache.myfaces.trinidadinternal.skin.SkinStyleProvider.getTargetStyleSheetName(SkinStyleProvider.java:199)
> at
> org.apache.myfaces.trinidadinternal.style.cache.FileSystemStyleCache._getOutputFiles(FileSystemStyleCache.java:879)
> at
> org.apache.myfaces.trinidadinternal.style.cache.FileSystemStyleCache._createStyleSheetFiles(FileSystemStyleCache.java:757)
> at
> org.apache.myfaces.trinidadinternal.style.cache.FileSystemStyleCache._createEntry(FileSystemStyleCache.java:542)
> at
> org.apache.myfaces.trinidadinternal.style.cache.FileSystemStyleCache._getEntry(FileSystemStyleCache.java:445)
> at
> org.apache.myfaces.trinidadinternal.style.cache.FileSystemStyleCache.getStyleSheetURIs(FileSystemStyleCache.java:165)
> at
> org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.StyleSheetRenderer.encodeAll(StyleSheetRenderer.java:97)
> at
> org.apache.myfaces.trinidad.render.CoreRenderer.delegateRenderer(CoreRenderer.java:446)
> at
> org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.HeadRenderer.encodeBegin(HeadRenderer.java:80)
> at
> org.apache.myfaces.trinidad.render.CoreRenderer.encodeBegin(CoreRenderer.java:311)
> at
> org.apache.myfaces.trinidad.component.UIXComponentBase.encodeBegin(UIXComponentBase.java:718)
> at
> org.apache.myfaces.trinidad.component.UIXComponentBase.__encodeRecursive(UIXComponentBase.java:1478)
> at
> org.apache.myfaces.trinidad.component.UIXComponentBase.__encodeRecursive(UIXComponentBase.java:1489)
> at
> org.apache.myfaces.trinidad.component.UIXComponentBase.encodeAll(UIXComponentBase.java:771)
> at javax.faces.component.UIComponent.encodeAll(UIComponent.java:257)
> at
> org.apache.myfaces.application.jsp.JspViewHandlerImpl.actuallyRenderView(JspViewHandlerImpl.java:427)
> at
> org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:383)
> at
> javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:48)
> at
> org.apache.myfaces.trinidadinternal.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:193)
> at
> org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:41)
> at
> org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:140)
> at javax.faces.webapp.FacesServlet.service(FacesServlet.java:155)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Unknown
> Source)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(Unknown
> Source)
> at
> org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:247)
> at
> org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:157)
> at
> org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Unknown
> Source)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(Unknown
> Source)
> at org.piranko.filters.LocaleFilter.doFilter(LocaleFilter.java:82)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Unknown
> Source)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(Unknown
> Source)
> at
> org.piranko.filters.ExceptionsFilter.doFilter(ExceptionsFilter.java:61)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Unknown
> Source)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(Unknown
> Source)
> at
> org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:247)
> at
> org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:157)
> at
> org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Unknown
> Source)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(Unknown
> Source)
> at org.apache.catalina.core.StandardWrapperValve.invoke(Unknown Source)
> at org.apache.catalina.core.StandardContextValve.invoke(Unknown Source)
> at org.apache.catalina.core.StandardHostValve.invoke(Unknown Source)
> at org.apache.catalina.valves.ErrorReportValve.invoke(Unknown Source)
> at org.apache.catalina.core.StandardEngineValve.invoke(Unknown Source)
> at org.apache.catalina.connector.CoyoteAdapter.service(Unknown Source)
> at org.apache.jk.server.JkCoyoteHandler.invoke(Unknown Source)
> at org.apache.jk.common.HandlerRequest.invoke(Unknown Source)
> at org.apache.jk.common.ChannelSocket.invoke(Unknown Source)
> at org.apache.jk.common.ChannelSocket.processConnection(Unknown Source)
> at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(Unknown
> Source)
> at
> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(Unknown Source)
> at java.lang.Thread.run(Thread.java:619)
> We have patched the code temporary with:
> Index:
> trinidad-api/src/main/java/org/apache/myfaces/trinidad/context/Agent.java
> ===================================================================
> --- trinidad-api/src/main/java/org/apache/myfaces/trinidad/context/Agent.java
> (revision 807570)
> +++ trinidad-api/src/main/java/org/apache/myfaces/trinidad/context/Agent.java
> (working copy)
> @@ -124,7 +124,12 @@
> */
> public static final String AGENT_UNKNOWN = "unknown";
>
> +
> /**
> + * Constant used for unknown versions of agents
> + */
> + public static final String VERSION_UNKNOWN = "unknown";
> + /**
> * Constant for Konqueror agent
> */
> public static final String AGENT_KONQUEROR = "konqueror";
> and
> Index:
> trinidad-impl/src/main/java/org/apache/myfaces/trinidadinternal/agent/AgentImpl.java
> ===================================================================
> ---
> trinidad-impl/src/main/java/org/apache/myfaces/trinidadinternal/agent/AgentImpl.java
> (revision 807570)
> +++
> trinidad-impl/src/main/java/org/apache/myfaces/trinidadinternal/agent/AgentImpl.java
> (working copy)
> @@ -146,8 +146,8 @@
> private static class AgentEntry
> {
> Object _type = TYPE_UNKNOWN;
> - String _agent;
> - String _agentVersion;
> + String _agent = AGENT_UNKNOWN;
> + String _agentVersion = VERSION_UNKNOWN;
> String _platform;
> String _platformVersion;
> String _makeModel;
> so that the AgentEntry class _agent and _agentVersion will always be
> initialized. Is that acceptable solution or another brake might be expected.
> We have also observed that to reproduce the error one must not call the local
> server with "http://localhost:8080/"; but with "http://10.1.1.208:8080/";
> otherwise the problem does not apear. This is probably because the styles are
> pulled out of cache of some sort and not freshly created when the problem
> appears when creating new stylesheet.
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