NullPointerException in TouchUI

[sandeepm744005]

Facing below error while trying to open the pages in the TouchUI. Please let me know what could be missing - 

Env = AEM 6.0 + SP2

Exception:

java.lang.NullPointerException at org.apache.jsp.libs.cq.gui.components.common.pathbrowsers7.render_jsp._jspService(render_jsp.java:198) at org.apache.sling.scripting.jsp.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:502) at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:449) at org.apache.sling.scripting.jsp.JspScriptEngineFactory.callJsp(JspScriptEngineFactory.java:281) at org.apache.sling.scripting.jsp.JspScriptEngineFactory.access$100(JspScriptEngineFactory.java:102) at org.apache.sling.scripting.jsp.JspScriptEngineFactory$JspScriptEngine.eval(JspScriptEngineFactory.java:524) at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:361) at org.apache.sling.scripting.core.impl.DefaultSlingScript.eval(DefaultSlingScript.java:171) at org.apache.sling.scripting.core.impl.DefaultSlingScript.service(DefaultSlingScript.java:463) at com.adobe.granite.ui.components.ComponentHelper.call(ComponentHelper.java:528) at org.apache.jsp.libs.granite.ui.components.foundation.form.field.field_jsp._jspService(field_jsp.java:218) at org.apache.sling.scripting.jsp.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:502) at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:449) at org.apache.sling.scripting.jsp.JspScriptEngineFactory.callJsp(JspScriptEngineFactory.java:281) at org.apache.sling.scripting.jsp.JspScriptEngineFactory.access$100(JspScriptEngineFactory.java:102) at org.apache.sling.scripting.jsp.JspScriptEngineFactory$JspScriptEngine.eval(JspScriptEngineFactory.java:524) at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:361) at org.apache.sling.scripting.core.impl.DefaultSlingScript.eval(DefaultSlingScript.java:171) at org.apache.sling.scripting.core.impl.DefaultSlingScript.service(DefaultSlingScript.java:463) at org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:533) at org.apache.sling.engine.impl.filter.SlingComponentFilterChain.render(SlingComponentFilterChain.java:45) at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:64) at com.day.cq.personalization.impl.TargetComponentFilter.doFilter(TargetComponentFilter.java:96) at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60) at com.day.cq.wcm.core.impl.WCMDebugFilter.doFilter(WCMDebugFilter.java:133) at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60) at com.day.cq.wcm.core.impl.WCMComponentFilter.doFilter(WCMComponentFilter.java:223) at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60) at com.day.cq.wcm.core.impl.WCMDeveloperModeFilter.doFilter(WCMDeveloperModeFilter.java:116) at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60) at org.apache.sling.engine.impl.SlingRequestProcessorImpl.processComponent(SlingRequestProcessorImpl.java:282) at org.apache.sling.engine.impl.SlingRequestProcessorImpl.dispatchRequest(SlingRequestProcessorImpl.java:322) at org.apache.sling.engine.impl.request.SlingRequestDispatcher.dispatch(SlingRequestDispatcher.java:216) at org.apache.sling.engine.impl.request.SlingRequestDispatcher.include(SlingRequestDispatcher.java:103) at com.day.cq.wcm.core.impl.WCMComponentFilter$ForwardRequestDispatcher.include(WCMComponentFilter.java:431)

[smacdonald2008]

Is this an upgraded instance or a fresh CQ install? 

[sandeepm744005]

I have recently copied "repository" folder from other server to one of the dev server. Facing NPE issue in the TouchUI, i already tried deleting the /var/classes/* files to filter out caching issue. I have tried two times, one time copied "repository" folder and other time copy the full "crx-quickstart" from the server. Same issue in both the times. Bundles are looking good, all are active. Please let me know what else i need to try ? 

[sandeepm744005]

After deleting the /var/classes and tried to hit the page. Getting below error, even tried add some space in proxy.jsp to force it to recompile but no help.

Unable to compile class for JSP: An error occurred at line: 1 in the jsp file: /libs/foundation/components/primary/cq/Page/Page.jsp Unreachable code 1: <%@include file="proxy.jsp" %>

Exception:

org.apache.sling.scripting.jsp.jasper.JasperException: Unable to compile class for JSP: An error occurred at line: 1 in the jsp file: /libs/foundation/components/primary/cq/Page/Page.jsp Unreachable code 1: <%@include file="proxy.jsp" %>      

[sandeepm744005]

i tried to copy the repository again and tried to run the server but it is stuck here with below logs. Server is not starting.

10.04.2016 15:34:55.331 *WARN* [FelixStartLevel] org.apache.jackrabbit.oak.plugins.segment.file.TarReader Invalid graph metadata in tar file /app/AEM6/author/crx-quickstart/repository/segmentstore/data00005d.tar
10.04.2016 15:34:55.440 *WARN* [FelixStartLevel] org.apache.jackrabbit.oak.plugins.segment.file.TarReader Invalid graph metadata in tar file /app/AEM6/author/crx-quickstart/repository/segmentstore/data00003b.tar
10.04.2016 15:34:55.517 *WARN* [FelixStartLevel] org.apache.jackrabbit.oak.plugins.segment.file.TarReader Invalid graph metadata in tar file /app/AEM6/author/crx-quickstart/repository/segmentstore/data00002g.tar
10.04.2016 15:34:55.551 *WARN* [FelixStartLevel] org.apache.jackrabbit.oak.plugins.segment.file.TarReader Invalid graph metadata in tar file /app/AEM6/author/crx-quickstart/repository/segmentstore/data00001b.tar
10.04.2016 15:34:55.649 *WARN* [FelixStartLevel] org.apache.jackrabbit.oak.plugins.segment.file.TarReader Invalid graph metadata in tar file /app/AEM6/author/crx-quickstart/repository/segmentstore/data00000h.tar

10.04.2016 15:37:01.361 *INFO* [qtp918055329-89] org.apache.sling.startupfilter.impl.StartupFilterImpl Reloaded list of StartupInfoProvider: []