I have a ServletContextListener which is giving me an IllegalArgumentException when it tries to load the properties from the file. My code is as follows:
private final static Properties properties = new Properties();
@Override
public void contextInitialized(ServletContextEvent sce) {
ServletContext sc = sce.getServletContext();
try {
// Load MyProject's properties file.
properties.load(sc.getResourceAsStream(sc.getInitParameter("myProjectPropsFilePath")));
}
catch(IOException e) {
Utils.printStackTrace(e);
}
// Write properties to ServletContext.
sc.setAttribute("properties", properties);
}
The context parameter is being retrieved from web.xml but I do not understand why the IllegalArgumentException is being thrown at line:
properties.load(sc.getResourceAsStream(sc.getInitParameter("myProjectPropsFilePath")));
The stacktrace is as follows:
08-Jun-2015 12:52:07.439 SEVERE [http-apr-8080-exec-34] org.apache.catalina.core.StandardContext.listenerStart Exception sending context initialized event to listener instance of class myProject.listener.SetPropertiesServletContextListener
java.lang.IllegalArgumentException: The resource path [\WEB-INF\properties\MyProject.properties] is not valid
at org.apache.catalina.webresources.StandardRoot.validate(StandardRoot.java:237)
at org.apache.catalina.webresources.StandardRoot.getResource(StandardRoot.java:199)
at org.apache.catalina.webresources.StandardRoot.getResource(StandardRoot.java:193)
at org.apache.catalina.core.ApplicationContext.getResourceAsStream(ApplicationContext.java:559)
at org.apache.catalina.core.ApplicationContextFacade.getResourceAsStream(ApplicationContextFacade.java:209)
at myProject.listener.SetPropertiesServletContextListener.contextInitialized(SetPropertiesServletContextListener.java:26)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4738)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5158)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:726)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:702)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:697)
at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:579)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:455)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1554)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at org.apache.catalina.manager.ManagerServlet.check(ManagerServlet.java:1428)
at org.apache.catalina.manager.ManagerServlet.deploy(ManagerServlet.java:885)
at org.apache.catalina.manager.ManagerServlet.doGet(ManagerServlet.java:343)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:618)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:301)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:615)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:136)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:74)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:516)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1015)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:652)
at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:277)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2451)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2440)
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)
Any ideas? I am using Apache Tomcat 8.0.3.
The appropriate part of web.xml is:
<!-- Listeners and parameters. -->
<listener>
<description>SetPropertiesServletContextListener</description>
<listener-class>myProject.listener.SetPropertiesServletContextListener</listener-class>
</listener>
<context-param>
<param-name>myProjectPropsFilePath</param-name>
<param-value>\WEB-INF\properties\myProject.properties</param-value>
</context-param>
The path should contain / as a separator because /WEB-INF/ remains the same in windows and in linux. You probably have wrong values in web.xml. According to Java API specs, you always use /.
This is wrong: <param-value>\WEB-INF\properties\myProject.properties</param-value>
Should've been:
<param-value>/WEB-INF/properties/myProject.properties</param-value>