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Unable to read a DriverClass from Jar file placed inside Tomcat/lib/ext
Jatinderveer Singh, modified 6 Years ago.
Unable to read a DriverClass from Jar file placed inside Tomcat/lib/ext
New Member Posts: 21 Join Date: 2/24/17 Recent Posts
Hi ,
I am using a JSF based LR portlet and I want to utilize my Phoenix-Hbase jar file which I placed inside LiferaHome/Tomcat/lib/ext. While using the attached code I see the below exception while setting up simple JDBC connection to Hbase. The jar file is 100 MB and i do not want to include that in each of the modules. The code works fine if i just place the jar of connection inside the module lib folder. Some where LR is not able to recognize the Jar. We are using phoenix-4.7.0.2.5.0.0-1245-client jar file. This is not available over maven or gradle.
We have a LR support system access but we were not sure under which category will this fall. For faster resolution we would like this to be moved under LESA. Please take necessary actions. I will attach the jar into the LESA ticket once we have this moved there.
I am using a JSF based LR portlet and I want to utilize my Phoenix-Hbase jar file which I placed inside LiferaHome/Tomcat/lib/ext. While using the attached code I see the below exception while setting up simple JDBC connection to Hbase. The jar file is 100 MB and i do not want to include that in each of the modules. The code works fine if i just place the jar of connection inside the module lib folder. Some where LR is not able to recognize the Jar. We are using phoenix-4.7.0.2.5.0.0-1245-client jar file. This is not available over maven or gradle.
We have a LR support system access but we were not sure under which category will this fall. For faster resolution we would like this to be moved under LESA. Please take necessary actions. I will attach the jar into the LESA ticket once we have this moved there.
12:52:21,025 INFO [http-nio-8080-exec-3][PortletClass:39] Get Connection for Hbase
12:52:21,026 ERROR [http-nio-8080-exec-3][PortletClass:47] [PSD Portlet]PSDHomeMBean.init() Exception in InIt()::
java.lang.ClassNotFoundException: org.apache.phoenix.PhoenixDriver cannot be found by HbaseTest-1.0_1.0.0
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:444)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:357)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:349)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at com.test.hbase.util.HbaseUtil.openConnection(HbaseUtil.java:26)
at com.test.hbase.portletClass.PortletClass.init(PortletClass.java:40)
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.sun.faces.vendor.WebContainerInjectionProvider.invokeAnnotatedMethod(WebContainerInjectionProvider.java:113)
at com.sun.faces.vendor.WebContainerInjectionProvider.invokePostConstruct(WebContainerInjectionProvider.java:95)
at com.sun.faces.mgbean.BeanBuilder.invokePostConstruct(BeanBuilder.java:221)
at com.sun.faces.mgbean.BeanBuilder.build(BeanBuilder.java:103)
at com.sun.faces.mgbean.BeanManager.createAndPush(BeanManager.java:409)
at com.sun.faces.mgbean.BeanManager.create(BeanManager.java:269)
at com.sun.faces.el.ManagedBeanELResolver.resolveBean(ManagedBeanELResolver.java:257)
at com.sun.faces.el.ManagedBeanELResolver.getValue(ManagedBeanELResolver.java:117)
at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
at com.sun.el.parser.AstIdentifier.getValue(AstIdentifier.java:116)
at com.sun.el.parser.AstValue.getBase(AstValue.java:151)
at com.sun.el.parser.AstValue.getValue(AstValue.java:200)
at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:226)
at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194)
at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:182)
at javax.faces.component.UIOutput.getValue(UIOutput.java:174)
at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:205)
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:355)
at com.sun.faces.renderkit.html_basic.LabelRenderer.encodeBegin(LabelRenderer.java:120)
at javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:865)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1854)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1859)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:458)
at javax.faces.view.ViewDeclarationLanguageWrapper.renderView(ViewDeclarationLanguageWrapper.java:146)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:134)
at com.liferay.faces.bridge.application.internal.ViewHandlerCompatImpl.renderView(ViewHandlerCompatImpl.java:95)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219)
at com.liferay.faces.bridge.internal.BridgePhaseRenderImpl.execute(BridgePhaseRenderImpl.java:238)
at com.liferay.faces.bridge.internal.BridgePhaseRenderImpl.execute(BridgePhaseRenderImpl.java:93)
at com.liferay.faces.bridge.internal.BridgeImpl.doFacesRequest(BridgeImpl.java:141)
at javax.portlet.faces.GenericFacesPortlet.doView(GenericFacesPortlet.java:673)
at javax.portlet.GenericPortlet.doDispatch(GenericPortlet.java:359)
at javax.portlet.faces.GenericFacesPortlet.doDispatch(GenericFacesPortlet.java:589)
at javax.portlet.GenericPortlet.render(GenericPortlet.java:262)
at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:103)
at com.liferay.portlet.ScriptDataPortletFilter.doFilter(ScriptDataPortletFilter.java:57)
at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:100)
at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:64)
at com.liferay.portal.kernel.servlet.PortletServlet.service(PortletServlet.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at com.liferay.portal.osgi.web.wab.extender.internal.adapter.ServletExceptionAdapter.service(ServletExceptionAdapter.java:68)
at org.eclipse.equinox.http.servlet.internal.registration.EndpointRegistration.service(EndpointRegistration.java:153)
at org.eclipse.equinox.http.servlet.internal.servlet.FilterChainImpl.doFilter(FilterChainImpl.java:50)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:119)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:99)
at com.liferay.portal.osgi.web.wab.extender.internal.adapter.FilterExceptionAdapter.doFilter(FilterExceptionAdapter.java:46)
at org.eclipse.equinox.http.servlet.internal.registration.FilterRegistration.doFilter(FilterRegistration.java:121)
at org.eclipse.equinox.http.servlet.internal.servlet.FilterChainImpl.doFilter(FilterChainImpl.java:45)
at org.eclipse.equinox.http.servlet.internal.servlet.ResponseStateHandler.processRequest(ResponseStateHandler.java:70)
at org.eclipse.equinox.http.servlet.internal.context.DispatchTargets.doDispatch(DispatchTargets.java:117)
at org.eclipse.equinox.http.servlet.internal.servlet.RequestDispatcherAdaptor.include(RequestDispatcherAdaptor.java:48)
at com.liferay.portlet.InvokerPortletImpl.invoke(InvokerPortletImpl.java:530)
at com.liferay.portlet.InvokerPortletImpl.invokeRender(InvokerPortletImpl.java:605)
at com.liferay.portlet.InvokerPortletImpl.render(InvokerPortletImpl.java:391)
at com.liferay.portal.monitoring.internal.portlet.MonitoringInvokerPortlet.render(MonitoringInvokerPortlet.java:265)
at org.apache.jsp.html.portal.render_005fportlet_jsp._jspService(render_005fportlet_jsp.java:1580)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:438)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:119)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:99)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:720)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:584)
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:523)
at com.liferay.portal.servlet.DirectServletPathRegisterDispatcher.include(DirectServletPathRegisterDispatcher.java:67)
at com.liferay.portal.servlet.ClassLoaderRequestDispatcherWrapper.doDispatch(ClassLoaderRequestDispatcherWrapper.java:78)
at com.liferay.portal.servlet.ClassLoaderRequestDispatcherWrapper.include(ClassLoaderRequestDispatcherWrapper.java:53)
at com.liferay.portlet.PortletContainerImpl._render(PortletContainerImpl.java:682)
at com.liferay.portlet.PortletContainerImpl.render(PortletContainerImpl.java:145)
at com.liferay.portlet.SecurityPortletContainerWrapper.render(SecurityPortletContainerWrapper.java:126)
at com.liferay.portlet.RestrictPortletContainerWrapper.render(RestrictPortletContainerWrapper.java:126)
at com.liferay.portal.kernel.portlet.PortletContainerUtil.render(PortletContainerUtil.java:155)
at com.liferay.portal.action.RenderPortletAction.execute(RenderPortletAction.java:112)
at com.liferay.portal.action.UpdateLayoutAction.addPortlet(UpdateLayoutAction.java:317)
at com.liferay.portal.action.UpdateLayoutAction.getJSON(UpdateLayoutAction.java:268)
at com.liferay.portal.struts.JSONAction.execute(JSONAction.java:76)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
at com.liferay.portal.struts.PortalRequestProcessor.process(PortalRequestProcessor.java:170)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
at com.liferay.portal.servlet.MainServlet.callParentService(MainServlet.java:603)
at com.liferay.portal.servlet.MainServlet.service(MainServlet.java:580)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:119)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)
at com.liferay.portal.servlet.filters.uploadservletrequest.UploadServletRequestFilter.processFilter(UploadServletRequestFilter.java:93)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)
at com.liferay.portal.servlet.filters.strip.StripFilter.processFilter(StripFilter.java:336)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)
at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:337)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)
at com.liferay.portal.servlet.filters.jsoncontenttype.JSONContentTypeFilter.processFilter(JSONContentTypeFilter.java:42)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)
at com.liferay.portal.sharepoint.SharepointFilter.processFilter(SharepointFilter.java:88)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)
at com.liferay.portal.servlet.filters.virtualhost.VirtualHostFilter.processFilter(VirtualHostFilter.java:257)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)
at com.liferay.portal.monitoring.internal.servlet.filter.MonitoringFilter.processFilter(MonitoringFilter.java:181)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:188)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:188)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)
at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:176)
at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:145)
at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:92)
at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:394)
at com.liferay.portal.servlet.filters.urlrewrite.UrlRewriteFilter.processFilter(UrlRewriteFilter.java:65)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:168)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:168)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:188)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:99)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:522)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1095)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:672)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Attachments:
David H Nebinger, modified 6 Years ago.
RE: Unable to read a DriverClass from Jar file placed inside Tomcat/lib/ext
Liferay Legend Posts: 14919 Join Date: 9/2/06 Recent PostsJatinderveer Singh:
I want to utilize my Phoenix-Hbase jar file which I placed inside LiferaHome/Tomcat/lib/ext. The code works fine if i just place the jar of connection inside the module lib folder. Some where LR is not able to recognize the Jar.
Okay, so let's say this again in as clear a language as I can.
The application container's global class loader is not available to the OSGi framework's global class loader.
This is done on purpose, there is no reason to pollute the OSGi class loader with things a developer may need to load differently, different versions or dependencies.
The jar file is 100 MB and i do not want to include that in each of the modules.
Dude, you are totally worrying about the wrong thing. This is absolutely not a problem and you're wasting your time and effort thinking about it.
In the magical world of OSGi, thought experiments about what is or is not a problem is pointless. Deploy, test and measure. Only then can you know what is a problem and what isn't, what needs to be solved and what was just an uneducated guess.
Jatinderveer Singh, modified 6 Years ago.
RE: Unable to read a DriverClass from Jar file placed inside Tomcat/lib/ext
New Member Posts: 21 Join Date: 2/24/17 Recent Posts
Ok. Let me ask this question in a different way. I have a JSF module in LR7. I want to utilize a class from Global library which is not LR out of box. What would it take to do that. I have seen a thread related on how to do so in modules built by utilizing the LR 7 gradle dependencies but i did not see anything on how to do the same in Maven based modules.
100 MB jar if included will lead to a 100mb+ size module being kept in memory when I am only using like 10 MB of it on constant basis. Mutliply this with number of modules using this Jar and it causes a problem in long run.
Hope i have been clear enough to elaborate my problem.
100 MB jar if included will lead to a 100mb+ size module being kept in memory when I am only using like 10 MB of it on constant basis. Mutliply this with number of modules using this Jar and it causes a problem in long run.
Hope i have been clear enough to elaborate my problem.
David H Nebinger, modified 6 Years ago.
RE: Unable to read a DriverClass from Jar file placed inside Tomcat/lib/ext
Liferay Legend Posts: 14919 Join Date: 9/2/06 Recent PostsJatinderveer Singh:
100 MB jar if included will lead to a 100mb+ size module being kept in memory when I am only using like 10 MB of it on constant basis. Mutliply this with number of modules using this Jar and it causes a problem in long run.
False.
Of the 100MB jar, only classes used in memory become resident, the whole 100mb+ file is not persisted in memory.
Like I said, you are conducting a thought experiment about what you think is going on. But without an indepth knowledge of class loaders, what the OSGi container is doing, etc., you are just guessing and trying to solve a problem that really doesn't exist.
Trust me, you're worrying about the wrong things. Get your module(s) working and the environment functional. Then measure and test and see if there really is a problem.
Jatinderveer Singh, modified 6 Years ago.
RE: Unable to read a DriverClass from Jar file placed inside Tomcat/lib/ext
New Member Posts: 21 Join Date: 2/24/17 Recent Posts
Well I did do what you suggested (kind of reluctantly) but now i face an altogether new challenge. I removed my jar file from Global directory and placed it under my module lib but now i see the below exception.
The pom.xml remains unchanged. Is there something i need to remove for this to work?
5:35:57,556 ERROR [Refresh Thread: Equinox Container: 700005c4-e217-0018-1285-cf36eb7d5e28][com_liferay_portal_osgi_web_servlet_context_helper:97] HbaseTest-1.0_1.0.0 [593] unable to load servlet javax.faces.webapp.FacesServlet
java.lang.ClassCastException: class javax.faces.webapp.FacesServlet
at java.lang.Class.asSubclass(Class.java:3404)
at com.liferay.portal.osgi.web.servlet.context.helper.internal.definition.WebXMLDefinitionLoader._getServletInstance(WebXMLDefinitionLoader.java:1110)
at com.liferay.portal.osgi.web.servlet.context.helper.internal.definition.WebXMLDefinitionLoader._setServlet(WebXMLDefinitionLoader.java:1151)
at com.liferay.portal.osgi.web.servlet.context.helper.internal.definition.WebXMLDefinitionLoader.endElement(WebXMLDefinitionLoader.java:348)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(AbstractSAXParser.java:609)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(XMLDocumentFragmentScannerImpl.java:1782)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2967)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:602)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:505)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:841)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:770)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:643)
at com.liferay.portal.osgi.web.servlet.context.helper.internal.definition.WebXMLDefinitionLoader.loadWebXMLDefinition(WebXMLDefinitionLoader.java:515)
at com.liferay.portal.osgi.web.servlet.context.helper.internal.definition.WebXMLDefinitionLoader.loadWebXML(WebXMLDefinitionLoader.java:451)
at com.liferay.portal.osgi.web.servlet.context.helper.internal.ServletContextHelperRegistrationImpl.<init>(ServletContextHelperRegistrationImpl.java:76)
at com.liferay.portal.osgi.web.servlet.context.helper.internal.ServletContextHelperRegistrationServiceFactory.getService(ServletContextHelperRegistrationServiceFactory.java:49)
at com.liferay.portal.osgi.web.servlet.context.helper.internal.ServletContextHelperRegistrationServiceFactory.getService(ServletContextHelperRegistrationServiceFactory.java:32)
at org.eclipse.osgi.internal.serviceregistry.ServiceFactoryUse$1.run(ServiceFactoryUse.java:212)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.internal.serviceregistry.ServiceFactoryUse.factoryGetService(ServiceFactoryUse.java:210)
at org.eclipse.osgi.internal.serviceregistry.ServiceFactoryUse.getService(ServiceFactoryUse.java:111)
at org.eclipse.osgi.internal.serviceregistry.ServiceConsumer$2.getService(ServiceConsumer.java:45)
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.getService(ServiceRegistrationImpl.java:496)
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.getService(ServiceRegistry.java:461)
at org.eclipse.osgi.internal.framework.BundleContextImpl.getService(BundleContextImpl.java:619)
at org.osgi.util.tracker.ServiceTracker.addingService(ServiceTracker.java:414)
at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:941)
at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:1)
at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256)
at org.osgi.util.tracker.AbstractTracked.trackInitial(AbstractTracked.java:183)
at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:318)
at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:261)
at com.liferay.portal.osgi.web.wab.extender.internal.WabBundleProcessor.initContext(WabBundleProcessor.java:434)
at com.liferay.portal.osgi.web.wab.extender.internal.WabBundleProcessor.init(WabBundleProcessor.java:130)
at com.liferay.portal.osgi.web.wab.extender.internal.WebBundleDeployer._initWabBundle(WebBundleDeployer.java:186)
at com.liferay.portal.osgi.web.wab.extender.internal.WebBundleDeployer.doStart(WebBundleDeployer.java:106)
at com.liferay.portal.osgi.web.wab.extender.internal.WabFactory$WABExtension.start(WabFactory.java:158)
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$Tracked.bundleChanged(BundleTracker.java:444)
at org.eclipse.osgi.internal.framework.BundleContextImpl.dispatchEvent(BundleContextImpl.java:905)
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEventPrivileged(EquinoxEventPublisher.java:165)
at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:75)
at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:67)
at org.eclipse.osgi.internal.framework.EquinoxContainerAdaptor.publishModuleEvent(EquinoxContainerAdaptor.java:102)
at org.eclipse.osgi.container.Module.publishEvent(Module.java:461)
at org.eclipse.osgi.container.Module.start(Module.java:452)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:454)
at org.eclipse.osgi.container.ModuleContainer.applyDelta(ModuleContainer.java:717)
at org.eclipse.osgi.container.ModuleContainer.resolveAndApply(ModuleContainer.java:491)
at org.eclipse.osgi.container.ModuleContainer.resolve(ModuleContainer.java:437)
at org.eclipse.osgi.container.ModuleContainer.refresh(ModuleContainer.java:955)
at org.eclipse.osgi.container.ModuleContainer$ContainerWiring.dispatchEvent(ModuleContainer.java:1336)
at org.eclipse.osgi.container.ModuleContainer$ContainerWiring.dispatchEvent(ModuleContainer.java:1)
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:340)
22-Feb-2018 15:36:20.416 SEVERE [Refresh Thread: Equinox Container: 700005c4-e217-0018-1285-cf36eb7d5e28] org.apache.catalina.core.ApplicationContext.log interface javax.servlet.ServletContext is not visible from class loader
java.lang.IllegalArgumentException: interface javax.servlet.ServletContext is not visible from class loader
at java.lang.reflect.Proxy$ProxyClassFactory.apply(Proxy.java:581)
at java.lang.reflect.Proxy$ProxyClassFactory.apply(Proxy.java:557)
at java.lang.reflect.WeakCache$Factory.get(WeakCache.java:230)
at java.lang.reflect.WeakCache.get(WeakCache.java:127)
at java.lang.reflect.Proxy.getProxyClass0(Proxy.java:419)
at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:719)
at com.liferay.portal.osgi.web.servlet.jsp.compiler.JspServlet$1.<init>(JspServlet.java:349)
at com.liferay.portal.osgi.web.servlet.jsp.compiler.JspServlet.init(JspServlet.java:319)
at org.eclipse.equinox.http.servlet.internal.registration.EndpointRegistration.init(EndpointRegistration.java:95)
at org.eclipse.equinox.http.servlet.internal.context.ContextController.doAddServletRegistration(ContextController.java:573)
at org.eclipse.equinox.http.servlet.internal.context.ContextController.addServletRegistration(ContextController.java:447)
at org.eclipse.equinox.http.servlet.internal.customizer.ContextServletTrackerCustomizer.addingService(ContextServletTrackerCustomizer.java:55)
at org.eclipse.equinox.http.servlet.internal.customizer.ContextServletTrackerCustomizer.addingService(ContextServletTrackerCustomizer.java:1)
at org.osgi.util.tracker.ServiceTracker$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.servlet.context.helper.internal.ServletContextHelperRegistrationImpl.createJspServlet(ServletContextHelperRegistrationImpl.java:235)
at com.liferay.portal.osgi.web.servlet.context.helper.internal.ServletContextHelperRegistrationImpl.<init>(ServletContextHelperRegistrationImpl.java:108)
at com.liferay.portal.osgi.web.servlet.context.helper.internal.ServletContextHelperRegistrationServiceFactory.getService(ServletContextHelperRegistrationServiceFactory.java:49)
at com.liferay.portal.osgi.web.servlet.context.helper.internal.ServletContextHelperRegistrationServiceFactory.getService(ServletContextHelperRegistrationServiceFactory.java:32)
at org.eclipse.osgi.internal.serviceregistry.ServiceFactoryUse$1.run(ServiceFactoryUse.java:212)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.internal.serviceregistry.ServiceFactoryUse.factoryGetService(ServiceFactoryUse.java:210)
at org.eclipse.osgi.internal.serviceregistry.ServiceFactoryUse.getService(ServiceFactoryUse.java:111)
at org.eclipse.osgi.internal.serviceregistry.ServiceConsumer$2.getService(ServiceConsumer.java:45)
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.getService(ServiceRegistrationImpl.java:496)
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.getService(ServiceRegistry.java:461)
at org.eclipse.osgi.internal.framework.BundleContextImpl.getService(BundleContextImpl.java:619)
at org.osgi.util.tracker.ServiceTracker.addingService(ServiceTracker.java:414)
at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:941)
at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:1)
at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256)
at org.osgi.util.tracker.AbstractTracked.trackInitial(AbstractTracked.java:183)
at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:318)
at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:261)
at com.liferay.portal.osgi.web.wab.extender.internal.WabBundleProcessor.initContext(WabBundleProcessor.java:434)
at com.liferay.portal.osgi.web.wab.extender.internal.WabBundleProcessor.init(WabBundleProcessor.java:130)
at com.liferay.portal.osgi.web.wab.extender.internal.WebBundleDeployer._initWabBundle(WebBundleDeployer.java:186)
at com.liferay.portal.osgi.web.wab.extender.internal.WebBundleDeployer.doStart(WebBundleDeployer.java:106)
at com.liferay.portal.osgi.web.wab.extender.internal.WabFactory$WABExtension.start(WabFactory.java:158)
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$Tracked.bundleChanged(BundleTracker.java:444)
at org.eclipse.osgi.internal.framework.BundleContextImpl.dispatchEvent(BundleContextImpl.java:905)
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEventPrivileged(EquinoxEventPublisher.java:165)
at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:75)
at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:67)
at org.eclipse.osgi.internal.framework.EquinoxContainerAdaptor.publishModuleEvent(EquinoxContainerAdaptor.java:102)
at org.eclipse.osgi.container.Module.publishEvent(Module.java:461)
at org.eclipse.osgi.container.Module.start(Module.java:452)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:454)
at org.eclipse.osgi.container.ModuleContainer.applyDelta(ModuleContainer.java:717)
at org.eclipse.osgi.container.ModuleContainer.resolveAndApply(ModuleContainer.java:491)
at org.eclipse.osgi.container.ModuleContainer.resolve(ModuleContainer.java:437)
at org.eclipse.osgi.container.ModuleContainer.refresh(ModuleContainer.java:955)
at org.eclipse.osgi.container.ModuleContainer$ContainerWiring.dispatchEvent(ModuleContainer.java:1336)
at org.eclipse.osgi.container.ModuleContainer$ContainerWiring.dispatchEvent(ModuleContainer.java:1)
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:340)
15:36:20,424 WARN [Refresh Thread: Equinox Container: 700005c4-e217-0018-1285-cf36eb7d5e28][com_liferay_portal_osgi_web_wab_extender:103] [HbaseTest-1.0_1.0.0 [593]] Error while creating extension
java.lang.NoClassDefFoundError: javax/servlet/ServletContainerInitializer
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.defineClass(ModuleClassLoader.java:272)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.defineClass(ClasspathManager.java:632)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findClassImpl(ClasspathManager.java:588)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClassImpl(ClasspathManager.java:540)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:527)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:324)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:330)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:407)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:357)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:349)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at org.eclipse.osgi.internal.framework.EquinoxBundle.loadClass(EquinoxBundle.java:583)
at com.liferay.portal.osgi.web.wab.extender.internal.WabBundleProcessor.processServletContainerInitializerClass(WabBundleProcessor.java:690)
at com.liferay.portal.osgi.web.wab.extender.internal.WabBundleProcessor.initServletContainerInitializers(WabBundleProcessor.java:605)
at com.liferay.portal.osgi.web.wab.extender.internal.WabBundleProcessor.init(WabBundleProcessor.java:153)
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$WABExtension.start(WabFactory.java:158)
at org.apache.felix.utils.extender.AbstractExtender.createExtension(AbstractExtender.java:259)
at org.apache.felix.utils.extender.AbstractExtender.modifiedBundle(AbstractExtender.java:232)
at org.osgi.util.tracker.BundleTracker$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.framework.util.SecureAction.start(SecureAction.java:454)
at org.eclipse.osgi.container.ModuleContainer.applyDelta(ModuleContainer.java:717)
at org.eclipse.osgi.container.ModuleContainer.resolveAndApply(ModuleContainer.java:491)
at org.eclipse.osgi.container.ModuleContainer.resolve(ModuleContainer.java:437)
at org.eclipse.osgi.container.ModuleContainer.refresh(ModuleContainer.java:955)
at org.eclipse.osgi.container.ModuleContainer$ContainerWiring.dispatchEvent(ModuleContainer.java:1336)
at org.eclipse.osgi.container.ModuleContainer$ContainerWiring.dispatchEvent(ModuleContainer.java:1)
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:340)
Caused by: java.lang.ClassNotFoundException: javax.servlet.ServletContainerInitializer cannot be found by HbaseTest-1.0_1.0.0
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:444)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:357)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:349)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 45 more
</init></init></init>The pom.xml remains unchanged. Is there something i need to remove for this to work?
Jatinderveer Singh, modified 6 Years ago.
RE: Unable to read a DriverClass from Jar file placed inside Tomcat/lib/ext
New Member Posts: 21 Join Date: 2/24/17 Recent Posts
Also post these messages I see that the module has started in OSGI from the logs but it is no available for selection in portlet add menu.
15:46:46,720 INFO [Refresh Thread: Equinox Container: 700005c4-e217-0018-1285-cf36eb7d5e28][BundleStartStopLogger:35] STARTED HbaseTest-1.0_1.0.0 [593]
Minhchau Dang, modified 6 Years ago.
RE: Unable to read a DriverClass from Jar file placed inside Tomcat/lib/ext
Liferay Master Posts: 598 Join Date: 10/22/07 Recent PostsJatinderveer Singh:
Ok. Let me ask this question in a different way. I have a JSF module in LR7. I want to utilize a class from Global library which is not LR out of box. What would it take to do that.
As David has been saying, there's a few problems with thinking about it like that. Usually, you aim to deploy a module that works correctly with OSGi and then that module exposes what you need. Simply exposing something in the global classloader to OSGi is just as likely to cause things to break as it is to make your specific code work.
With that being said, if you are confident that all you need is the class, and that the class can work inside an OSGi container with no additional modifications (this isn't always true), and you know that your packages don't conflict with anyone else's packages, the way you expose classes in the global classloader to the OSGi container is achieved in one of three ways via portal properties:
- module.framework.system.packages.extra: If you want packages that are in the global classloader to be available for an Import-Package, then you update this list.
- module.framework.web.generator.default.servlet.packages: If you want packages to always be injected automatically into every .war file that you deploy (you develop with .war files instead of .jar files), then you update this list.
- module.framework.properties.org.osgi.framework.bootdelegation: If you want packages to always be injected automatically into every .jar and every .war file that you deploy, then you update this list.
Kyle Joseph Stiemann, modified 6 Years ago.
RE: Unable to read a DriverClass from Jar file placed inside Tomcat/lib/ext
Liferay Master Posts: 760 Join Date: 1/14/13 Recent Posts
Hi Jatinderveer,
You can ask this question on LESA by clicking this link, signing in, and copying the question there: https://web.liferay.com/group/customer/support/-/support/ticket.
Also, you may want to check out this related question by Tobias Leifke: Use features of the JEE application server in Liferay 7.
- Kyle
You can ask this question on LESA by clicking this link, signing in, and copying the question there: https://web.liferay.com/group/customer/support/-/support/ticket.
Also, you may want to check out this related question by Tobias Leifke: Use features of the JEE application server in Liferay 7.
- Kyle
Ovidiu David Dan, modified 3 Years ago.
RE: Unable to read a DriverClass from Jar file placed inside Tomcat/lib/ext
New Member Posts: 15 Join Date: 1/23/17 Recent PostsDavid H Nebinger:
The application container's global class loader is not available to the OSGi framework's global class loader.
I'm a bit confused because in the option 1 of https://liferay.dev/blogs/-/blogs/osgi-module-dependencies you said dependencies can be left in lib / ext.
Can you tell me what I'm misunderstanding please?
Thank you
Olaf Kock, modified 3 Years ago.
RE: Unable to read a DriverClass from Jar file placed inside Tomcat/lib/ext
Liferay Legend Posts: 6403 Join Date: 9/23/08 Recent PostsOvidiu David Dan:
David H Nebinger:
The application container's global class loader is not available to the OSGi framework's global class loader.
I'm a bit confused because in the option 1 of <a href="https://liferay.dev/blogs/-/blogs/osgi-module-dependencies"/> you said dependencies can be left in lib / ext.
can you tell me what I'm misunderstanding please?
It can be done. Technically, that's right. But it shouldn't. There's a better way. And yes, the global class loader is not available, but you can explicitly and selectively make some code available to OSGi from there. But it's a maintenance nightmare.
David H Nebinger, modified 3 Years ago.
RE: Unable to read a DriverClass from Jar file placed inside Tomcat/lib/ext
Liferay Legend Posts: 14919 Join Date: 9/2/06 Recent Posts
Right, by default the global class loader and global classes are not visible, so anything in lib/ext cannot be accessed in the OSGi container.
There's a portal-ext.property that you can add to, module.framework.system.packages.extra, which can expose global packages into the OSGi container, but this is not recommended.
For global classes, OSGi will not be able to use different versions as required by different modules, the single global class becomes the one that has to be used by all. Sometimes this is not a big deal, but other times it can be catastrophic (i.e. if you put a Spring 3 jar in as a global jar, this can muck with Liferay's Spring 4 usage).
Plus, as a global jar, all transitive dependencies the jar has also needs to be global otherwise you end up with CNFEs.
So the pollution of the global class loader is possible, but it will introduce a level of fragility into the system that you just don't want or need.
There's a portal-ext.property that you can add to, module.framework.system.packages.extra, which can expose global packages into the OSGi container, but this is not recommended.
For global classes, OSGi will not be able to use different versions as required by different modules, the single global class becomes the one that has to be used by all. Sometimes this is not a big deal, but other times it can be catastrophic (i.e. if you put a Spring 3 jar in as a global jar, this can muck with Liferay's Spring 4 usage).
Plus, as a global jar, all transitive dependencies the jar has also needs to be global otherwise you end up with CNFEs.
So the pollution of the global class loader is possible, but it will introduce a level of fragility into the system that you just don't want or need.
Ovidiu David Dan, modified 3 Years ago.
RE: Unable to read a DriverClass from Jar file placed inside Tomcat/lib/ext
New Member Posts: 15 Join Date: 1/23/17 Recent Posts
Ok, it is entirely clear to me now.. thank you!