EricGao888 edited a comment on pull request #4160:
URL: https://github.com/apache/zeppelin/pull/4160#issuecomment-874557842
> Please test manually, it seems that the server does not start. Thank you
for submitting the PR to close security gaps.
Tested again, couldn't start server. Got warning message like that:
```
WARN [2021-07-06 15:54:34,822] ({main} WebAppContext.java[doStart]:533) -
Failed startup of context
o.e.j.w.WebAppContext@7e5c856f{zeppelin-web,/,file:///Users/alibaba/workplace/me/zeppelin/zeppelin-web/dist/,UNAVAILABLE}
java.lang.IllegalStateException
at
org.eclipse.jetty.servlet.ServletHolder.setClassFrom(ServletHolder.java:300)
at
org.eclipse.jetty.servlet.ServletHolder.doStart(ServletHolder.java:347)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
at
org.eclipse.jetty.servlet.ServletHandler.lambda$initialize$0(ServletHandler.java:730)
at
java.util.stream.SortedOps$SizedRefSortingSink.end(SortedOps.java:352)
at
java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:483)
at
java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
at
java.util.stream.StreamSpliterators$WrappingSpliterator.forEachRemaining(StreamSpliterators.java:312)
at
java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:743)
at
java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:580)
at
org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:755)
at
org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:379)
at
org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1449)
at
org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1414)
at
org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:911)
at
org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:288)
at
org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:524)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
at
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
at
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
at
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
at
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
at
io.micrometer.core.instrument.binder.jetty.TimedHandler.doStart(TimedHandler.java:162)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
at
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
at org.eclipse.jetty.server.Server.start(Server.java:423)
at
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
at org.eclipse.jetty.server.Server.doStart(Server.java:387)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
at
org.apache.zeppelin.server.ZeppelinServer.main(ZeppelinServer.java:253)
```
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