Khalid Huseynov created ZEPPELIN-1612:
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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
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