I'm in the middle of upgrade my Liferay Portal from 6.1.2 GA3 to 7.0.2 GA3.

I have a Portlet plugin build with maven that I migrate to Liferay 7 API, and I try to deploy it into Liferay 7. My code needs to read from a Java properties file some configuration.

In Liferay Portal 6.1.2 GA3 I have the properties file at:

liferay/tomcat-7.0.40/lib/com/spribo/spribo-ext.properties

But in Liferay 7 I got next exception (because code could not read properties file)

14:08:52.286 [fileinstall-/opt/liferay-7/osgi/war] ERROR com.spribo.sswp.SpriboProperty - Fail to read property ehcache.jgroups.properties
com.spribo.sswp.SpriboPropertyException: The critical property ehcache.jgroups.properties was not found. The program can't continue until the value is been set. Please review your spribo-ext or spribo properties file configuration
	at com.spribo.sswp.SpriboProperty.getProperty(SpriboProperty.java:219) ~[sswp-8.0-SNAPSHOT.jar:8.0-SNAPSHOT]
	at com.spribo.sswp.SpriboProperty.getProperty(SpriboProperty.java:156) [sswp-8.0-SNAPSHOT.jar:8.0-SNAPSHOT]
	at com.spribo.sswp.service.cache.EhcacheCommunity.createCacheManagerConfiguration(EhcacheCommunity.java:95) [sswp-8.0-SNAPSHOT.jar:8.0-SNAPSHOT]
	at com.spribo.sswp.service.cache.EhcacheCommunity.<init>(EhcacheCommunity.java:44) [sswp-8.0-SNAPSHOT.jar:8.0-SNAPSHOT]
	at com.spribo.sswp.service.cache.EhcacheCommunity.<clinit>(EhcacheCommunity.java:29) [sswp-8.0-SNAPSHOT.jar:8.0-SNAPSHOT]
	at com.spribo.sswp.service.ServiceProviderInstance.initialize(ServiceProviderInstance.java:306) [sswp-8.0-SNAPSHOT.jar:8.0-SNAPSHOT]
	at com.spribo.sswp.service.ServiceProvider.getInstance(ServiceProvider.java:95) [sswp-8.0-SNAPSHOT.jar:8.0-SNAPSHOT]
	at com.spribo.sswp.service.ServiceProvider.getCommunityService(ServiceProvider.java:65) [sswp-8.0-SNAPSHOT.jar:8.0-SNAPSHOT]
	at com.spribo.vaadin.portlet.singlenotification.SingleNotificationVaadinPortlet.createPortletService(SingleNotificationVaadinPortlet.java:29) [bundleFile:?]
	at com.vaadin.server.VaadinPortlet.init(VaadinPortlet.java:373) [vaadin-server-7.4.6.3.jar:?]
	at com.liferay.portlet.InvokerPortletImpl.init(InvokerPortletImpl.java:296) [portal-impl.jar:?]
	at com.liferay.portal.monitoring.internal.portlet.MonitoringInvokerPortlet.init(MonitoringInvokerPortlet.java:141) [bundleFile:?]
	at com.liferay.portlet.PortletInstanceFactoryImpl.init(PortletInstanceFactoryImpl.java:288) [portal-impl.jar:?]
	at com.liferay.portlet.PortletInstanceFactoryImpl.create(PortletInstanceFactoryImpl.java:193) [portal-impl.jar:?]
	at com.liferay.portal.kernel.portlet.PortletInstanceFactoryUtil.create(PortletInstanceFactoryUtil.java:49) [portal-kernel.jar:?]
	at com.liferay.portlet.PortletBagFactory.create(PortletBagFactory.java:217) [portal-impl.jar:?]
	at com.liferay.portal.service.impl.PortletLocalServiceImpl.initWAR(PortletLocalServiceImpl.java:858) [portal-impl.jar:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_77]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_77]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_77]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_77]
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:153) [portal-impl.jar:?]
	at com.liferay.portal.spring.aop.ServiceBeanAopProxy.invoke(ServiceBeanAopProxy.java:173) [portal-impl.jar:?]
	at com.sun.proxy.$Proxy109.initWAR(Unknown Source) [?:?]
	at com.liferay.portal.kernel.service.PortletLocalServiceUtil.initWAR(PortletLocalServiceUtil.java:327) [portal-kernel.jar:?]
	at com.liferay.portal.deploy.hot.PortletHotDeployListener.doInvokeDeploy(PortletHotDeployListener.java:210) [portal-impl.jar:?]
	at com.liferay.portal.deploy.hot.PortletHotDeployListener.invokeDeploy(PortletHotDeployListener.java:95) [portal-impl.jar:?]
	at com.liferay.portal.deploy.hot.HotDeployImpl.doFireDeployEvent(HotDeployImpl.java:237) [portal-impl.jar:?]
	at com.liferay.portal.deploy.hot.HotDeployImpl.fireDeployEvent(HotDeployImpl.java:104) [portal-impl.jar:?]
	at com.liferay.portal.kernel.deploy.hot.HotDeployUtil.fireDeployEvent(HotDeployUtil.java:28) [portal-kernel.jar:?]
	at com.liferay.portal.kernel.servlet.PluginContextListener.fireDeployEvent(PluginContextListener.java:164) [portal-kernel.jar:?]
	at com.liferay.portal.kernel.servlet.PluginContextListener.doPortalInit(PluginContextListener.java:154) [portal-kernel.jar:?]
	at com.liferay.portal.kernel.util.BasePortalLifecycle.portalInit(BasePortalLifecycle.java:44) [portal-kernel.jar:?]
	at com.liferay.portal.kernel.util.PortalLifecycleUtil.register(PortalLifecycleUtil.java:74) [portal-kernel.jar:?]
	at com.liferay.portal.kernel.util.PortalLifecycleUtil.register(PortalLifecycleUtil.java:58) [portal-kernel.jar:?]
	at com.liferay.portal.kernel.util.BasePortalLifecycle.registerPortalLifecycle(BasePortalLifecycle.java:54) [portal-kernel.jar:?]
	at com.liferay.portal.kernel.servlet.PluginContextListener.contextInitialized(PluginContextListener.java:116) [portal-kernel.jar:?]
	at com.liferay.portal.kernel.servlet.SecurePluginContextListener.contextInitialized(SecurePluginContextListener.java:151) [portal-kernel.jar:?]
	at com.liferay.portal.osgi.web.wab.extender.internal.adapter.ServletContextListenerExceptionAdapter.contextInitialized(ServletContextListenerExceptionAdapter.java:51) [bundleFile:?]
	at sun.reflect.GeneratedMethodAccessor430.invoke(Unknown Source) ~[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_77]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_77]
	at org.eclipse.equinox.http.servlet.internal.registration.ListenerRegistration$EventListenerInvocationHandler.invoke(ListenerRegistration.java:132) [bundleFile:?]
	at com.sun.proxy.$Proxy476.contextInitialized(Unknown Source) [?:?]
	at org.eclipse.equinox.http.servlet.internal.context.ContextController.doAddListenerRegistration(ContextController.java:359) [bundleFile:?]
	at org.eclipse.equinox.http.servlet.internal.context.ContextController.addListenerRegistration(ContextController.java:312) [bundleFile:?]
	at org.eclipse.equinox.http.servlet.internal.customizer.ContextListenerTrackerCustomizer.addingService(ContextListenerTrackerCustomizer.java:67) [bundleFile:?]
	at org.eclipse.equinox.http.servlet.internal.customizer.ContextListenerTrackerCustomizer.addingService(ContextListenerTrackerCustomizer.java:1) [bundleFile:?]
	at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:941) [org.eclipse.osgi.jar:?]
	at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:1) [org.eclipse.osgi.jar:?]
	at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256) [org.eclipse.osgi.jar:?]
	at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:229) [org.eclipse.osgi.jar:?]
	at org.osgi.util.tracker.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:901) [org.eclipse.osgi.jar:?]
	at org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged(FilteredServiceListener.java:109) [org.eclipse.osgi.jar:?]
	at org.eclipse.osgi.internal.framework.BundleContextImpl.dispatchEvent(BundleContextImpl.java:917) [org.eclipse.osgi.jar:?]
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230) [org.eclipse.osgi.jar:?]
	at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148) [org.eclipse.osgi.jar:?]
	at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:862) [org.eclipse.osgi.jar:?]
	at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:801) [org.eclipse.osgi.jar:?]
	at org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.register(ServiceRegistrationImpl.java:127) [org.eclipse.osgi.jar:?]
	at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.registerService(ServiceRegistry.java:225) [org.eclipse.osgi.jar:?]
	at org.eclipse.osgi.internal.framework.BundleContextImpl.registerService(BundleContextImpl.java:464) [org.eclipse.osgi.jar:?]
	at org.eclipse.osgi.internal.framework.BundleContextImpl.registerService(BundleContextImpl.java:482) [org.eclipse.osgi.jar:?]
	at org.eclipse.osgi.internal.framework.BundleContextImpl.registerService(BundleContextImpl.java:1001) [org.eclipse.osgi.jar:?]
	at com.liferay.portal.osgi.web.wab.extender.internal.WabBundleProcessor.initListeners(WabBundleProcessor.java:526) [bundleFile:?]
	at com.liferay.portal.osgi.web.wab.extender.internal.WabBundleProcessor.init(WabBundleProcessor.java:152) [bundleFile:?]
	at com.liferay.portal.osgi.web.wab.extender.internal.WebBundleDeployer._initWabBundle(WebBundleDeployer.java:186) [bundleFile:?]
	at com.liferay.portal.osgi.web.wab.extender.internal.WebBundleDeployer.doStart(WebBundleDeployer.java:106) [bundleFile:?]
	at com.liferay.portal.osgi.web.wab.extender.internal.WabFactory$WABExtension.start(WabFactory.java:162) [bundleFile:?]
	at org.apache.felix.utils.extender.AbstractExtender.createExtension(AbstractExtender.java:259) [bundleFile:?]
	at org.apache.felix.utils.extender.AbstractExtender.modifiedBundle(AbstractExtender.java:232) [bundleFile:?]
	at org.osgi.util.tracker.BundleTracker$Tracked.customizerModified(BundleTracker.java:482) [org.eclipse.osgi.jar:?]
	at org.osgi.util.tracker.BundleTracker$Tracked.customizerModified(BundleTracker.java:1) [org.eclipse.osgi.jar:?]
	at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:232) [org.eclipse.osgi.jar:?]
	at org.osgi.util.tracker.BundleTracker$Tracked.bundleChanged(BundleTracker.java:444) [org.eclipse.osgi.jar:?]
	at org.eclipse.osgi.internal.framework.BundleContextImpl.dispatchEvent(BundleContextImpl.java:905) [org.eclipse.osgi.jar:?]
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230) [org.eclipse.osgi.jar:?]
	at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148) [org.eclipse.osgi.jar:?]
	at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEventPrivileged(EquinoxEventPublisher.java:165) [org.eclipse.osgi.jar:?]
	at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:75) [org.eclipse.osgi.jar:?]
	at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:67) [org.eclipse.osgi.jar:?]
	at org.eclipse.osgi.internal.framework.EquinoxContainerAdaptor.publishModuleEvent(EquinoxContainerAdaptor.java:102) [org.eclipse.osgi.jar:?]
	at org.eclipse.osgi.container.Module.publishEvent(Module.java:461) [org.eclipse.osgi.jar:?]
	at org.eclipse.osgi.container.Module.start(Module.java:452) [org.eclipse.osgi.jar:?]
	at org.eclipse.osgi.internal.framework.EquinoxBundle.start(EquinoxBundle.java:402) [org.eclipse.osgi.jar:?]
	at org.apache.felix.fileinstall.internal.DirectoryWatcher.startBundle(DirectoryWatcher.java:1252) [bundleFile:3.5.1-SNAPSHOT]
	at org.apache.felix.fileinstall.internal.DirectoryWatcher.startBundles(DirectoryWatcher.java:1224) [bundleFile:3.5.1-SNAPSHOT]
	at org.apache.felix.fileinstall.internal.DirectoryWatcher.doProcess(DirectoryWatcher.java:512) [bundleFile:3.5.1-SNAPSHOT]
	at org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:361) [bundleFile:3.5.1-SNAPSHOT]
	at org.apache.felix.fileinstall.internal.DirectoryWatcher.run(DirectoryWatcher.java:313) [bundleFile:3.5.1-SNAPSHOT]
14:08:52,290 ERROR [fileinstall-/opt/liferay-7/osgi/war][HotDeployImpl:240] com.liferay.portal.kernel.deploy.hot.HotDeployException: Error registering portlets for spribo-portlet-80-SNAPSHOT
com.liferay.portal.kernel.deploy.hot.HotDeployException: Error registering portlets for spribo-portlet-80-SNAPSHOT
	at com.liferay.portal.kernel.deploy.hot.BaseHotDeployListener.throwHotDeployException(BaseHotDeployListener.java:38)
	at com.liferay.portal.deploy.hot.PortletHotDeployListener.invokeDeploy(PortletHotDeployListener.java:98)
	at com.liferay.portal.deploy.hot.HotDeployImpl.doFireDeployEvent(HotDeployImpl.java:237)
	at com.liferay.portal.deploy.hot.HotDeployImpl.fireDeployEvent(HotDeployImpl.java:104)
	at com.liferay.portal.kernel.deploy.hot.HotDeployUtil.fireDeployEvent(HotDeployUtil.java:28)
	at com.liferay.portal.kernel.servlet.PluginContextListener.fireDeployEvent(PluginContextListener.java:164)
	at com.liferay.portal.kernel.servlet.PluginContextListener.doPortalInit(PluginContextListener.java:154)
	at com.liferay.portal.kernel.util.BasePortalLifecycle.portalInit(BasePortalLifecycle.java:44)
	at com.liferay.portal.kernel.util.PortalLifecycleUtil.register(PortalLifecycleUtil.java:74)
	at com.liferay.portal.kernel.util.PortalLifecycleUtil.register(PortalLifecycleUtil.java:58)
	at com.liferay.portal.kernel.util.BasePortalLifecycle.registerPortalLifecycle(BasePortalLifecycle.java:54)
	at com.liferay.portal.kernel.servlet.PluginContextListener.contextInitialized(PluginContextListener.java:116)
	at com.liferay.portal.kernel.servlet.SecurePluginContextListener.contextInitialized(SecurePluginContextListener.java:151)
	at com.liferay.portal.osgi.web.wab.extender.internal.adapter.ServletContextListenerExceptionAdapter.contextInitialized(ServletContextListenerExceptionAdapter.java:51)
	at sun.reflect.GeneratedMethodAccessor430.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.eclipse.equinox.http.servlet.internal.registration.ListenerRegistration$EventListenerInvocationHandler.invoke(ListenerRegistration.java:132)
	at com.sun.proxy.$Proxy476.contextInitialized(Unknown Source)
	at org.eclipse.equinox.http.servlet.internal.context.ContextController.doAddListenerRegistration(ContextController.java:359)
	at org.eclipse.equinox.http.servlet.internal.context.ContextController.addListenerRegistration(ContextController.java:312)
	at org.eclipse.equinox.http.servlet.internal.customizer.ContextListenerTrackerCustomizer.addingService(ContextListenerTrackerCustomizer.java:67)
	at org.eclipse.equinox.http.servlet.internal.customizer.ContextListenerTrackerCustomizer.addingService(ContextListenerTrackerCustomizer.java:1)
	at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:941)
	at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:1)
	at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256)
	at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:229)
	at org.osgi.util.tracker.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:901)
	at org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged(FilteredServiceListener.java:109)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.dispatchEvent(BundleContextImpl.java:917)
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
	at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
	at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:862)
	at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:801)
	at org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.register(ServiceRegistrationImpl.java:127)
	at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.registerService(ServiceRegistry.java:225)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.registerService(BundleContextImpl.java:464)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.registerService(BundleContextImpl.java:482)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.registerService(BundleContextImpl.java:1001)
	at com.liferay.portal.osgi.web.wab.extender.internal.WabBundleProcessor.initListeners(WabBundleProcessor.java:526)
	at com.liferay.portal.osgi.web.wab.extender.internal.WabBundleProcessor.init(WabBundleProcessor.java:152)
	at com.liferay.portal.osgi.web.wab.extender.internal.WebBundleDeployer._initWabBundle(WebBundleDeployer.java:186)
	at com.liferay.portal.osgi.web.wab.extender.internal.WebBundleDeployer.doStart(WebBundleDeployer.java:106)
	at com.liferay.portal.osgi.web.wab.extender.internal.WabFactory$WABExtension.start(WabFactory.java:162)
	at org.apache.felix.utils.extender.AbstractExtender.createExtension(AbstractExtender.java:259)
	at org.apache.felix.utils.extender.AbstractExtender.modifiedBundle(AbstractExtender.java:232)
	at org.osgi.util.tracker.BundleTracker$Tracked.customizerModified(BundleTracker.java:482)
	at org.osgi.util.tracker.BundleTracker$Tracked.customizerModified(BundleTracker.java:1)
	at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:232)
	at org.osgi.util.tracker.BundleTracker$Tracked.bundleChanged(BundleTracker.java:444)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.dispatchEvent(BundleContextImpl.java:905)
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
	at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
	at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEventPrivileged(EquinoxEventPublisher.java:165)
	at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:75)
	at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:67)
	at org.eclipse.osgi.internal.framework.EquinoxContainerAdaptor.publishModuleEvent(EquinoxContainerAdaptor.java:102)
	at org.eclipse.osgi.container.Module.publishEvent(Module.java:461)
	at org.eclipse.osgi.container.Module.start(Module.java:452)
	at org.eclipse.osgi.internal.framework.EquinoxBundle.start(EquinoxBundle.java:402)
	at org.apache.felix.fileinstall.internal.DirectoryWatcher.startBundle(DirectoryWatcher.java:1252)
	at org.apache.felix.fileinstall.internal.DirectoryWatcher.startBundles(DirectoryWatcher.java:1224)
	at org.apache.felix.fileinstall.internal.DirectoryWatcher.doProcess(DirectoryWatcher.java:512)
	at org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:361)
	at org.apache.felix.fileinstall.internal.DirectoryWatcher.run(DirectoryWatcher.java:313)
Caused by: java.lang.ExceptionInInitializerError
	at com.spribo.sswp.service.ServiceProviderInstance.initialize(ServiceProviderInstance.java:306)
	at com.spribo.sswp.service.ServiceProvider.getInstance(ServiceProvider.java:95)
	at com.spribo.sswp.service.ServiceProvider.getCommunityService(ServiceProvider.java:65)
	at com.spribo.vaadin.portlet.singlenotification.SingleNotificationVaadinPortlet.createPortletService(SingleNotificationVaadinPortlet.java:29)
	at com.vaadin.server.VaadinPortlet.init(VaadinPortlet.java:373)
	at com.liferay.portlet.InvokerPortletImpl.init(InvokerPortletImpl.java:296)
	at com.liferay.portal.monitoring.internal.portlet.MonitoringInvokerPortlet.init(MonitoringInvokerPortlet.java:141)
	at com.liferay.portlet.PortletInstanceFactoryImpl.init(PortletInstanceFactoryImpl.java:288)
	at com.liferay.portlet.PortletInstanceFactoryImpl.create(PortletInstanceFactoryImpl.java:193)
	at com.liferay.portal.kernel.portlet.PortletInstanceFactoryUtil.create(PortletInstanceFactoryUtil.java:49)
	at com.liferay.portlet.PortletBagFactory.create(PortletBagFactory.java:217)
	at com.liferay.portal.service.impl.PortletLocalServiceImpl.initWAR(PortletLocalServiceImpl.java:858)
	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:498)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:153)
	at com.liferay.portal.spring.aop.ServiceBeanAopProxy.invoke(ServiceBeanAopProxy.java:173)
	at com.sun.proxy.$Proxy109.initWAR(Unknown Source)
	at com.liferay.portal.kernel.service.PortletLocalServiceUtil.initWAR(PortletLocalServiceUtil.java:327)
	at com.liferay.portal.deploy.hot.PortletHotDeployListener.doInvokeDeploy(PortletHotDeployListener.java:210)
	at com.liferay.portal.deploy.hot.PortletHotDeployListener.invokeDeploy(PortletHotDeployListener.java:95)
	... 63 more
</clinit></init>

Where I must put my configuration Java properties file to enable my code to read it?