title: Getting sun.security.validator.ValidatorException: PKIX path building failed Error
body: <p>My application calls a web service in order to authenticate a specific user in that web service. That web service has their own self-signed CA certificate. I am using POST REST call to that service to authenticate a user by passing users 'username' and 'password' but then I am getting this error..</p>
  
  <h2>javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target</h2>
  
  <p>I have created a keystore and imported that servers certificate into that it. I am using that keystore in my application to trust the web service. Importing the certificate into JDK's cacerts can resolve my problem but this application can migrate to other servers according to clients requirement. So importing that certificate into jdk will not resolve the problem because that certificate has to be imported on that server too. So I have to trust it through my application code using that keystore. I searched many blogs and posts where everyone suggested to import that CA certificate into JDK's cacerts or to ignore the exception and blindly accept every CA certificate like this link <a href="https://stackoverflow.com/questions/2290570/pkix-path-building-failed-while-making-ssl-connection">PKIX path building failed while making SSL connection</a>. </p>
  
  <p>My error is very similar but none of the approach seem to work for me in this situation.
  What I am doing in my application in order to authenticate a user is following and if there is any mistake in this approach then please correct me...</p>
  
  <ol>
  <li><p>Created a keystore "authenticate.keystore"</p>
  
  <pre><code>-imported the self-signed certificate into that keystore.
  </code></pre></li>
  <li><p>declared a static block that loads the keystore </p>
  
  <pre><code>static{
  Properties properties;
  try {
  properties = new Properties();
  properties.load(Util.class.getClassLoader().getResourceAsStream("application.properties"));
  System.out.println("Properties loaded successfully");
  } catch (IOException e) {
  properties = null;
  e.printStackTrace();
  }
  String keyStore = Util.class.getClassLoader().getResource(properties.getProperty("KeyStoreLocation")).getFile();
  System.setProperty("javax.net.ssl.trustStore", keyStore );
  System.setProperty("javax.net.ssl.trustStorePassword", "changeit");
  System.setProperty("java.protocol.handler.pkgs","com.sun.net.ssl.internal.www.protocol");
  Security.addProvider( (Provider)Class.forName("com.sun.crypto.provider.SunJCE").newInstance());
  Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
  }
  </code></pre></li>
  <li><p>Then Fetching users credentials from session and authenticating the client using REST call. Here I am using org.apache.commons.httpclient.methods.PostMethod</p>
  
  <pre><code>HttpSession session = request.getSession();
  String userName = (String) session.getAttribute("j_username");
  String password = (String) session.getAttribute("USER_PASSWORD");           
  PostMethod methodP = new PostMethod("location");
  method.addParameter("username", userName);
  method.addParameter("password", password);
  authenticateUser(method);
  </code></pre></li>
  <li><p>openning connection and trying to authenticate. I am using org.apache.commons.httpclient.HttpClient</p>
  
  <pre><code>public String authenticateUser(PostMethod method){
  try{
  final HttpClient httpClient = new HttpClient();
  httpClient.executeMethod(method);
  if(statusCode==200)
  method.releaseConnection();
  }
  catch(Exception e){
  e.printStackTrace();
  method.releaseConnection();
  }        
  return null;
  }
  </code></pre></li>
  </ol>
  
  <p>But then while executing I am getting PKIX path binding error. Pasting the complete stacktrace below...</p>
  
  <pre><code>javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
  at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
  at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1902)
  at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:276)
  at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:270)
  at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1338)
  at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:154)
  at sun.security.ssl.Handshaker.processLoop(Handshaker.java:868)
  at sun.security.ssl.Handshaker.process_record(Handshaker.java:804)
  at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1032)
  at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1328)
  at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1355)
  at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1339)
  at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:515)
  at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)
  at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1299)
  at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:468)
  at com.sun.net.ssl.internal.www.protocol.https.HttpsURLConnectionOldImpl.getResponseCode(HttpsURLConnectionOldImpl.java:308)
  at sysvana.helpdesk.HelperTicket.httpTicketGET(HelperTicket.java:238)
  at sysvana.helpdesk.ActionHelpDeskBean.loadTickets(ActionHelpDeskBean.java:329)
  at sysvana.helpdesk.ActionHelpDeskBean.getAllTickets(ActionHelpDeskBean.java:292)
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:601)
  at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:328)
  at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:273)
  at org.jboss.el.parser.AstMethodSuffix.getValue(AstMethodSuffix.java:59)
  at org.jboss.el.parser.AstMethodSuffix.invoke(AstMethodSuffix.java:65)
  at org.jboss.el.parser.AstValue.invoke(AstValue.java:96)
  at org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)
  at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
  at com.sun.faces.facelets.tag.jsf.core.DeclarativeSystemEventListener.processEvent(EventHandler.java:128)
  at javax.faces.component.UIComponent$ComponentSystemEventListenerAdapter.processEvent(UIComponent.java:2508)
  at javax.faces.event.SystemEvent.processListener(SystemEvent.java:106)
  at com.sun.faces.application.ApplicationImpl.processListeners(ApplicationImpl.java:2129)
  at com.sun.faces.application.ApplicationImpl.invokeComponentListenersFor(ApplicationImpl.java:2077)
  at com.sun.faces.application.ApplicationImpl.publishEvent(ApplicationImpl.java:286)
  at com.sun.faces.application.ApplicationImpl.publishEvent(ApplicationImpl.java:244)
  at javax.faces.application.ApplicationWrapper.publishEvent(ApplicationWrapper.java:670)
  at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:108)
  at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
  at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
  at com.liferay.faces.bridge.lifecycle.LifecycleWrapper.render(LifecycleWrapper.java:45)
  at com.liferay.faces.bridge.BridgePhaseRenderImpl.execute(BridgePhaseRenderImpl.java:280)
  at com.liferay.faces.bridge.BridgePhaseRenderImpl.execute(BridgePhaseRenderImpl.java:92)
  at com.liferay.faces.bridge.BridgeImpl.doFacesRequest(BridgeImpl.java:99)
  at javax.portlet.faces.GenericFacesPortlet.doView(GenericFacesPortlet.java:255)
  at javax.portlet.GenericPortlet.doDispatch(GenericPortlet.java:328)
  at javax.portlet.faces.GenericFacesPortlet.doDispatch(GenericFacesPortlet.java:204)
  at javax.portlet.GenericPortlet.render(GenericPortlet.java:233)
  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:111)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
  at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
  at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:593)
  at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:530)
  at com.liferay.portlet.InvokerPortletImpl.invoke(InvokerPortletImpl.java:534)
  at com.liferay.portlet.InvokerPortletImpl.invokeRender(InvokerPortletImpl.java:607)
  at com.liferay.portlet.InvokerPortletImpl.render(InvokerPortletImpl.java:359)
  at org.apache.jsp.html.portal.render_005fportlet_jsp._jspService(render_005fportlet_jsp.java:1207)
  at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
  at com.liferay.portal.servlet.DirectRequestDispatcher.include(DirectRequestDispatcher.java:97)
  at com.liferay.portal.servlet.PACLRequestDispatcherWrapper.doDispatch(PACLRequestDispatcherWrapper.java:90)
  at com.liferay.portal.servlet.PACLRequestDispatcherWrapper.include(PACLRequestDispatcherWrapper.java:54)
  at com.liferay.portal.util.PortalImpl.renderPortlet(PortalImpl.java:5158)
  at com.liferay.portal.util.PortalUtil.renderPortlet(PortalUtil.java:1569)
  at com.liferay.portlet.layoutconfiguration.util.RuntimePortletImpl.processPortlet(RuntimePortletImpl.java:165)
  at com.liferay.portlet.layoutconfiguration.util.RuntimePortletImpl.processPortlet(RuntimePortletImpl.java:97)
  at com.liferay.portlet.layoutconfiguration.util.RuntimePortletImpl.doProcessTemplate(RuntimePortletImpl.java:531)
  at com.liferay.portlet.layoutconfiguration.util.RuntimePortletImpl.doDispatch(RuntimePortletImpl.java:394)
  at com.liferay.portlet.layoutconfiguration.util.RuntimePortletImpl.processTemplate(RuntimePortletImpl.java:228)
  at com.liferay.portlet.layoutconfiguration.util.RuntimePortletImpl.processTemplate(RuntimePortletImpl.java:216)
  at com.liferay.portlet.layoutconfiguration.util.RuntimePortletUtil.processTemplate(RuntimePortletUtil.java:113)
  at org.apache.jsp.html.portal.layout.view.portlet_jsp._jspService(portlet_jsp.java:507)
  at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
  at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
  at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
  at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
  at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
  at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:593)
  at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:530)
  at com.liferay.portal.action.LayoutAction.includeLayoutContent(LayoutAction.java:468)
  at com.liferay.portal.action.LayoutAction.processLayout(LayoutAction.java:735)
  at com.liferay.portal.action.LayoutAction.execute(LayoutAction.java:249)
  at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
  at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
  at com.liferay.portal.struts.PortalRequestProcessor.process(PortalRequestProcessor.java:176)
  at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
  at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
  at com.liferay.portal.servlet.MainServlet.callParentService(MainServlet.java:560)
  at com.liferay.portal.servlet.MainServlet.service(MainServlet.java:537)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
  at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
  at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:294)
  at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
  at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
  at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:471)
  at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)
  at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)
  at com.liferay.portal.servlet.FriendlyURLServlet.service(FriendlyURLServlet.java:138)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
  at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
  at com.liferay.portal.servlet.filters.strip.StripFilter.processFilter(StripFilter.java:335)
  at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
  at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
  at com.liferay.portal.servlet.filters.gzip.GZipFilter.processFilter(GZipFilter.java:123)
  at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
  at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
  at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:294)
  at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
  at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
  at com.liferay.portal.servlet.filters.i18n.I18nFilter.processFilter(I18nFilter.java:241)
  at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
  at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
  at com.liferay.portal.servlet.filters.autologin.AutoLoginFilter.processFilter(AutoLoginFilter.java:246)
  at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
  at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
  at com.liferay.portal.servlet.filters.sso.ntlm.NtlmPostFilter.processFilter(NtlmPostFilter.java:83)
  at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
  at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
  at com.liferay.portal.sharepoint.SharepointFilter.processFilter(SharepointFilter.java:80)
  at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
  at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
  at com.liferay.portal.servlet.filters.virtualhost.VirtualHostFilter.processFilter(VirtualHostFilter.java:216)
  at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:187)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:95)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
  at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:738)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:167)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:95)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:167)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:95)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:187)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:95)
  at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
  at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
  at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
  at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
  at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
  at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
  at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
  at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
  at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
  at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999)
  at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565)
  at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
  at java.lang.Thread.run(Thread.java:722)
  
  Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
  at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:385)
  at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292)
  at sun.security.validator.Validator.validate(Validator.java:260)
  at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:326)
  at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:231)
  at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:126)
  at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1320)
  ... 210 more
  
  Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
  at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:196)
  at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:268)
  at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:380)
  ... 216 more
  </code></pre>
  
  <p>I am very much stuck with this situation for a long time and really bugged by it. Any help or guidance will be highly appreciated.</p>