Runtime Java null pointer error

Ravi_Swamy

created an external component but it is making a call to internal java class.when i click on "preview" in the component, it throws this error (mentioned below). Please help.


java.lang.RuntimeException: Unable to access template (CS): /iwadmin/main/livesite/component/WORKAREA/shared/Product_Browse/BuyingGuide.component
at com.interwoven.livesite.iw.servlet.preview.PageBuilder.getComponentPalettePage(PageBuilder.java:310)
at com.interwoven.livesite.iw.servlet.preview.PageBuilder.getPreviewPage(PageBuilder.java:102)
at com.interwoven.livesite.iw.servlet.preview.PreviewDataMapping.setPage(PreviewDataMapping.java:192)
at com.interwoven.livesite.iw.servlet.preview.rendering.PreviewRenderingManager.doSetupPage(PreviewRenderingManager.java:130)
at com.interwoven.livesite.iw.servlet.preview.rendering.PagePaletteRenderingManager.buildContext(PagePaletteRenderingManager.java:126)
at com.interwoven.livesite.iw.servlet.preview.rendering.PagePaletteRenderingManager.preRender(PagePaletteRenderingManager.java:91)
at com.interwoven.livesite.iw.servlet.preview.rendering.PagePaletteRenderingManager.render(PagePaletteRenderingManager.java:150)
at com.interwoven.livesite.runtime.impl.BaseRequestContext.render(BaseRequestContext.java:201)
at com.interwoven.livesite.iw.servlet.preview.PagePaletteFilter.doFilter(PagePaletteFilter.java:80)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:183)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:138)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.NullPointerException
at org.apache.xalan.transformer.TransformerImpl.setOutputProperty(TransformerImpl.java:966)
at com.interwoven.livesite.common.xml.StylesheetWrapper.setOutputProperties(StylesheetWrapper.java:604)
at com.interwoven.livesite.common.xml.StylesheetWrapper.transformToString(StylesheetWrapper.java:457)
at com.interwoven.livesite.runtime.model.page.RuntimePage.init(RuntimePage.java:317)
at com.interwoven.livesite.model.page.PreviewPage.(PreviewPage.java:144)
at com.interwoven.livesite.model.page.PageConverter.convertXMLToEmptyPreviewPage(PageConverter.java:114)
at com.interwoven.livesite.model.util.TempPage.getPalettePreviewPage(TempPage.java:129)
at com.interwoven.livesite.iw.servlet.preview.PageBuilder.getComponentPalettePage(PageBuilder.java:306)
... 24 more

Crsb

It looks like you are getting the null expection when it tried using setOutputProperty in TransformerImpl.java with a null transformer obj. probably the null object is caused by failing to access /iwadmin/main/livesite/component/WORKAREA/shared/Product_Browse/BuyingGuide.component.

you might want to post your code, it will be easier to find with the null is coming from.