Cau,
a dival si se do zdrojaku tridy Digester na dany radek co je presne "null"?
Pokud mam stejnou verzi (tohle je dekompilovany JADem), tak tipuju ze
getParser() vraci "null" a tim zpusobi NPE:
public XMLReader getXMLReader()
throws SAXException
{
if(reader == null)
reader = getParser().getXMLReader();
reader.setDTDHandler(this);
reader.setContentHandler(this);
if(entityResolver == null)
reader.setEntityResolver(this);
else
reader.setEntityResolver(entityResolver);
reader.setErrorHandler(this);
return reader;
}
No a getParser() vypada takhle, takze zkus zjistits proc ti to nevytvori
instanci XML parseru...
public SAXParser getParser()
{
if(parser != null)
return parser;
try
{
if(validating)
{
Properties properties = new Properties();
properties.put("SAXParserFactory", getFactory());
if(schemaLocation != null)
{
properties.put("schemaLocation", schemaLocation);
properties.put("schemaLanguage", schemaLanguage);
}
parser = ParserFeatureSetterFactory.newSAXParser(properties);
} else
{
parser = getFactory().newSAXParser();
}
}
catch(Exception e)
{
log.error("Digester.getParser: ", e);
return null;
}
return parser;
}
Mej se,
Milan
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Petr Burdik
Sent: Wednesday, April 11, 2007 9:35 AM
To: Java
Subject: springframework - struts-tiles java.lang.NullPointerException
Ahojte,
uz jsem ten problem psal i vcera, ale tady je blizsi popis. Mam s tim
obrovske problemy ze to nejede a uz si fakt nevim rady. Zitra mam
predvadecku projektu ktery je naprogramovany a kvuli takoveto blbine mi to
nechce nabehnout.
popis problemu:
kdyz neni zakomentovany blok radku:
<property name="definitions">
<list>
<value>/WEB-INF/tiles-itsynapse.xml</value>
</list>
</property>
v konfiguraci springu, vyhodi mi pri spusteni aplikace
java.lang.NullPointerException (cela chyba na konci mailu). Nemuzu uz
treti den prijit na to proc. Nezkusite me prosim nakopnout? Aplikace s
timto nastavenim uz mi fungovala cca rok a neco. Ten definicni soubor jsem
zkratil a takto jsem to i testoval se stejnym "uspechem"
konfigurace v spring-servlet.xml
--------------------------------
<bean id="tilesConfigurer"
class="org.springframework.web.servlet.view.tiles.TilesConfigurer">
<property name="factoryClass"
value="org.apache.struts.tiles.xmlDefinition.I18nFactorySet"/>
<property name="definitions">
<list>
<value>/WEB-INF/tiles-itsynapse.xml</value>
</list>
</property>
</bean>
ukazka souboru:
--------------------------------
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE tiles-definitions PUBLIC
"-//Apache Software Foundation//DTD Tiles Configuration 1.3//EN"
"http://struts.apache.org/dtds/tiles-config_1_3.dtd";>
<tiles-definitions>
<definition name=".cms.ajaxInterface"
path="/WEB-INF/jsp/cms/itsynapse/ajaxInterface.jsp"/>
</tiles-definitions>
exception kterou to vyhodi
--------------------------------
2007-04-11 09:27:04,611 ERROR
[org.springframework.web.context.ContextLoader] - <Context initialization
failed>
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'tilesConfigurer' defined in ServletContext resource
[/WEB-INF/springapp-servlet.xml]: Invocation of init method failed; nested
exception is java.lang.NullPointerException
Caused by:
java.lang.NullPointerException
at
org.apache.commons.digester.Digester.getXMLReader(Digester.java:891)
at org.apache.commons.digester.Digester.parse(Digester.java:1591)
at
org.apache.struts.tiles.xmlDefinition.XmlParser.parse(XmlParser.java:277)
at
org.apache.struts.tiles.xmlDefinition.I18nFactorySet.parseXmlFile(I18nFactorySet.java:511)
at
org.apache.struts.tiles.xmlDefinition.I18nFactorySet.parseXmlFiles(I18nFactorySet.java:446)
at
org.apache.struts.tiles.xmlDefinition.I18nFactorySet.createDefaultFactory(I18nFactorySet.java:263)
at
org.apache.struts.tiles.xmlDefinition.I18nFactorySet.initFactory(I18nFactorySet.java:238)
at
org.apache.struts.tiles.xmlDefinition.I18nFactorySet.initFactory(I18nFactorySet.java:188)
at
org.apache.struts.tiles.definition.ComponentDefinitionsFactoryWrapper.init(ComponentDefinitionsFactoryWrapper.java:102)
at
org.apache.struts.tiles.TilesUtilImpl.createDefinitionsFactory(TilesUtilImpl.java:136)
at
org.apache.struts.tiles.TilesUtil.createDefinitionsFactory(TilesUtil.java:165)
at
org.springframework.web.servlet.view.tiles.TilesConfigurer.createDefinitionsFactory(TilesConfigurer.java:133)
at
org.springframework.web.servlet.view.tiles.TilesConfigurer.afterPropertiesSet(TilesConfigurer.java:119)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1143)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1110)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:431)
at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:254)
at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:144)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:251)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:163)
at
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:284)
at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:352)
at
org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:241)
at
org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:184)
at
org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:49)
at
org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3729)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4187)
at
org.apache.catalina.manager.ManagerServlet.start(ManagerServlet.java:1175)
at
org.apache.catalina.manager.ManagerServlet.doGet(ManagerServlet.java:368)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:174)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:619)
2007-04-11 09:27:04,617 ERROR
[org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/itsynapse20]]
- <Exception sending context initialized event to listener instance of
class org.springframework.web.context.ContextLoaderListener>
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'tilesConfigurer' defined in ServletContext resource
[/WEB-INF/springapp-servlet.xml]: Invocation of init method failed; nested
exception is java.lang.NullPointerException
Caused by:
java.lang.NullPointerException
at
org.apache.commons.digester.Digester.getXMLReader(Digester.java:891)
at org.apache.commons.digester.Digester.parse(Digester.java:1591)
at
org.apache.struts.tiles.xmlDefinition.XmlParser.parse(XmlParser.java:277)
at
org.apache.struts.tiles.xmlDefinition.I18nFactorySet.parseXmlFile(I18nFactorySet.java:511)
at
org.apache.struts.tiles.xmlDefinition.I18nFactorySet.parseXmlFiles(I18nFactorySet.java:446)
at
org.apache.struts.tiles.xmlDefinition.I18nFactorySet.createDefaultFactory(I18nFactorySet.java:263)
at
org.apache.struts.tiles.xmlDefinition.I18nFactorySet.initFactory(I18nFactorySet.java:238)
at
org.apache.struts.tiles.xmlDefinition.I18nFactorySet.initFactory(I18nFactorySet.java:188)
at
org.apache.struts.tiles.definition.ComponentDefinitionsFactoryWrapper.init(ComponentDefinitionsFactoryWrapper.java:102)
at
org.apache.struts.tiles.TilesUtilImpl.createDefinitionsFactory(TilesUtilImpl.java:136)
at
org.apache.struts.tiles.TilesUtil.createDefinitionsFactory(TilesUtil.java:165)
at
org.springframework.web.servlet.view.tiles.TilesConfigurer.createDefinitionsFactory(TilesConfigurer.java:133)
at
org.springframework.web.servlet.view.tiles.TilesConfigurer.afterPropertiesSet(TilesConfigurer.java:119)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1143)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1110)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:431)
at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:254)
at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:144)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:251)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:163)
at
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:284)
at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:352)
at
org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:241)
at
org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:184)
at
org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:49)
at
org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3729)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4187)
at
org.apache.catalina.manager.ManagerServlet.start(ManagerServlet.java:1175)
at
org.apache.catalina.manager.ManagerServlet.doGet(ManagerServlet.java:368)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:174)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:619)
Za nakopnuti predem moc dik
Pet
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