HABot Null Pointer Exception

brianmichalk · November 25, 2021, 6:14pm

I am running Openhab 3.1 in Debian on a virtual machine.

I’ve set up my semantic tags and want to query, but HABot has never worked for me. I’ve updated as of today.
When I access from a web browser to /habot/, I get the stack trace below in my openhab log file.

==> /var/log/openhab/openhab.log <==
2021-11-25 12:01:55.946 [WARN ] [org.eclipse.jetty.server.HttpChannel] - /habot/js/vendor.b67fa4a.js
java.lang.NullPointerException: null
	at org.openhab.ui.habot.tile.internal.HABotHttpContext.getResource(HABotHttpContext.java:69) ~[?:?]
	at org.ops4j.pax.web.service.internal.WebContainerContextWrapper.getResource(WebContainerContextWrapper.java:51) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.ResourceServlet.getWelcomeFile(ResourceServlet.java:342) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.ResourceServlet.service(ResourceServlet.java:188) ~[?:?]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) ~[bundleFile:3.1.0]
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:791) ~[?:?]
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:550) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:71) ~[?:?]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:602) ~[?:?]
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1435) ~[bundleFile:9.4.40.v20210413]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:294) ~[?:?]
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:501) ~[?:?]
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1350) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) ~[bundleFile:9.4.40.v20210413]
	at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:82) ~[?:?]
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.Server.handle(Server.java:516) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:388) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:633) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:380) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:277) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:882) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1036) [bundleFile:9.4.40.v20210413]
	at java.lang.Thread.run(Thread.java:829) [?:?]
2021-11-25 12:01:55.947 [WARN ] [org.eclipse.jetty.server.HttpChannel] - /habot/js/app.1061f8d.js
java.lang.NullPointerException: null
	at org.openhab.ui.habot.tile.internal.HABotHttpContext.getResource(HABotHttpContext.java:69) ~[?:?]
	at org.ops4j.pax.web.service.internal.WebContainerContextWrapper.getResource(WebContainerContextWrapper.java:51) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.ResourceServlet.getWelcomeFile(ResourceServlet.java:342) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.ResourceServlet.service(ResourceServlet.java:188) ~[?:?]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) ~[bundleFile:3.1.0]
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:791) ~[?:?]
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:550) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:71) ~[?:?]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:602) ~[?:?]
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1435) ~[bundleFile:9.4.40.v20210413]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:294) ~[?:?]
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:501) ~[?:?]
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1350) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) ~[bundleFile:9.4.40.v20210413]
	at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:82) ~[?:?]
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.Server.handle(Server.java:516) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:388) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:633) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:380) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:277) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:383) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:882) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1036) [bundleFile:9.4.40.v20210413]
	at java.lang.Thread.run(Thread.java:829) [?:?]
2021-11-25 12:01:56.025 [WARN ] [org.eclipse.jetty.server.HttpChannel] - /habot/js/vendor.b67fa4a.js
java.lang.NullPointerException: null
	at org.openhab.ui.habot.tile.internal.HABotHttpContext.getResource(HABotHttpContext.java:69) ~[?:?]
	at org.ops4j.pax.web.service.internal.WebContainerContextWrapper.getResource(WebContainerContextWrapper.java:51) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.ResourceServlet.getWelcomeFile(ResourceServlet.java:342) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.ResourceServlet.service(ResourceServlet.java:188) ~[?:?]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) ~[bundleFile:3.1.0]
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:791) ~[?:?]
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:550) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:71) ~[?:?]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:602) ~[?:?]
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1435) ~[bundleFile:9.4.40.v20210413]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:294) ~[?:?]
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:501) ~[?:?]
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1350) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) ~[bundleFile:9.4.40.v20210413]
	at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:82) ~[?:?]
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.Server.handle(Server.java:516) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:388) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:633) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:380) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:277) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:383) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:882) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1036) [bundleFile:9.4.40.v20210413]
	at java.lang.Thread.run(Thread.java:829) [?:?]
2021-11-25 12:01:56.043 [WARN ] [org.eclipse.jetty.server.HttpChannel] - /habot/js/charts.24e8a6e.js
java.lang.NullPointerException: null
	at org.openhab.ui.habot.tile.internal.HABotHttpContext.getResource(HABotHttpContext.java:69) ~[?:?]
	at org.ops4j.pax.web.service.internal.WebContainerContextWrapper.getResource(WebContainerContextWrapper.java:51) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.ResourceServlet.getWelcomeFile(ResourceServlet.java:342) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.ResourceServlet.service(ResourceServlet.java:188) ~[?:?]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) ~[bundleFile:3.1.0]
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:791) ~[?:?]
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:550) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:71) ~[?:?]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:602) ~[?:?]
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1435) ~[bundleFile:9.4.40.v20210413]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:294) ~[?:?]
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:501) ~[?:?]
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1350) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) ~[bundleFile:9.4.40.v20210413]
	at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:82) ~[?:?]
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.Server.handle(Server.java:516) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:388) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:633) ~[bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:380) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:277) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:383) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:882) [bundleFile:9.4.40.v20210413]
	at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1036) [bundleFile:9.4.40.v20210413]
	at java.lang.Thread.run(Thread.java:829) [?:?]

ysc · November 25, 2021, 8:09pm

github.com

openhab/openhab-webui/blob/1e916dad8add25ac876d259f8ff12fd4ba713db9/bundles/org.openhab.ui.habot/src/main/java/org/openhab/ui/habot/tile/internal/HABotHttpContext.java#L69

    
      
              return defaultHttpContext.handleSecurity(request, response);
          }
          
          
@Override
          public URL getResource(String name) {
              logger.debug("Requesting resource: {}", name);
              // Get the gzipped version for selected resources, built as static resources by webpack
              URL defaultResource = defaultHttpContext.getResource(name);
              if (useGzipCompression && isGzipVersionAvailable(name)) {
                  try {
                      return new URL(defaultResource.toString() + ".gz");
                  } catch (MalformedURLException e) {
                      return defaultResource;
                  }
              } else {
                  if (name.equals(resourcesBase) || name.equals(resourcesBase + "/") || !name.contains(".")) {
                      return defaultHttpContext.getResource(resourcesBase + "/index.html");
                  }
                  return defaultResource;
              }
          }

Can you try at the openHAB console:

openhab> config:list | grep useGzipCompression

if so this needs to be cleared, this option was deprecated.

brianmichalk · November 26, 2021, 2:58pm

Ah!, that worked!!! Thank you so much.
This is the solution:
openhab-cli console
config:property-set -p org.openhab.habot useGzipCompression false