Khalid Huseynov created ZEPPELIN-1612: -----------------------------------------
Summary: NPE when starting Zeppelin because of non-initialized subject Key: ZEPPELIN-1612 URL: https://issues.apache.org/jira/browse/ZEPPELIN-1612 Project: Zeppelin Issue Type: Bug Reporter: Khalid Huseynov When starting Zeppelin Notebook is initialized and loads notes in [here|https://github.com/apache/zeppelin/blob/master/zeppelin-zengine/src/main/java/org/apache/zeppelin/notebook/Notebook.java#L465] with empty subject, which causes NPE in [here|https://github.com/apache/zeppelin/blob/master/zeppelin-zengine/src/main/java/org/apache/zeppelin/notebook/Notebook.java#L447]. Log is given below: {quote} java.lang.reflect.InvocationTargetException at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.apache.cxf.jaxrs.servlet.CXFNonSpringJaxrsServlet.createSingletonInstance(CXFNonSpringJaxrsServlet.java:382) at org.apache.cxf.jaxrs.servlet.CXFNonSpringJaxrsServlet.createApplicationInstance(CXFNonSpringJaxrsServlet.java:454) at org.apache.cxf.jaxrs.servlet.CXFNonSpringJaxrsServlet.createServerFromApplication(CXFNonSpringJaxrsServlet.java:432) at org.apache.cxf.jaxrs.servlet.CXFNonSpringJaxrsServlet.init(CXFNonSpringJaxrsServlet.java:93) at org.eclipse.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:616) at org.eclipse.jetty.servlet.ServletHolder.initialize(ServletHolder.java:396) at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:871) at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:298) at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1349) at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1342) at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:741) at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:505) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132) at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114) at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61) at org.eclipse.jetty.server.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:163) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132) at org.eclipse.jetty.server.Server.start(Server.java:387) at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114) at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61) at org.eclipse.jetty.server.Server.doStart(Server.java:354) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) at org.apache.zeppelin.server.ZeppelinServer.main(ZeppelinServer.java:144) Caused by: java.lang.NullPointerException at org.apache.zeppelin.notebook.Notebook.loadNoteFromRepo(Notebook.java:447) at org.apache.zeppelin.notebook.Notebook.loadAllNotes(Notebook.java:469) at org.apache.zeppelin.notebook.Notebook.<init>(Notebook.java:123) at org.apache.zeppelin.server.ZeppelinServer.<init>(ZeppelinServer.java:107) ... 29 more {quote} -- This message was sent by Atlassian JIRA (v6.3.4#6332)