Classic UI Server Error

Setup, Configuration and Use Installation
1

I know this has been asked before, but I don’t see an answer anywhere. (other than clear the cache…)

  • Platform information:
    • Hardware: RP3
    • openHAB version: 2.4.0 snapshot

Classic UI and Paper UI do not work for me.
Paper UI works fine, as does HABMIN

If I reinstall the UI it still does not work
if I clear the cache, sometimes it works for a little while.

this is the error message i get when trying to access Classic UI

HTTP ERROR 500

Problem accessing /classicui/app. Reason:

Server Error

Caused by:

java.lang.NullPointerException
at org.eclipse.smarthome.ui.internal.items.ItemUIRegistryImpl.convertStateToWidgetUnit(ItemUIRegistryImpl.java:431)
at org.eclipse.smarthome.ui.internal.items.ItemUIRegistryImpl.getLabel(ItemUIRegistryImpl.java:404)
at org.eclipse.smarthome.ui.classic.internal.render.AbstractWidgetRenderer.getLabel(AbstractWidgetRenderer.java:126)
at org.eclipse.smarthome.ui.classic.internal.render.AbstractWidgetRenderer.getLabel(AbstractWidgetRenderer.java:115)
at org.eclipse.smarthome.ui.classic.internal.render.TextRenderer.renderWidget(TextRenderer.java:48)
at org.eclipse.smarthome.ui.classic.internal.render.PageRenderer.renderWidget(PageRenderer.java:178)
at org.eclipse.smarthome.ui.classic.internal.render.PageRenderer.processChildren(PageRenderer.java:139)
at org.eclipse.smarthome.ui.classic.internal.render.PageRenderer.processChildren(PageRenderer.java:160)
at org.eclipse.smarthome.ui.classic.internal.render.PageRenderer.processPage(PageRenderer.java:99)
at org.eclipse.smarthome.ui.classic.internal.servlet.WebAppServlet.service(WebAppServlet.java:177)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:865)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:535)
at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:71)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1317)
at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:293)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1219)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:80)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
at org.eclipse.jetty.server.Server.handle(Server.java:531)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:352)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:281)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102)
at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:762)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:680)
at java.lang.Thread.run(Thread.java:748)

any help appreciated. Happy New year to all.
Mark

2

It could be an error in your sitemap
Please post the sitemap code, thanks

3

Apparently relative to a channel using the ESH unit system. Maybe a wrong unit is set in the sitemap.

4

hi, thanks for the replies. here’s my sitemap, it’s a work in progress…

sitemap alma label=“Alma”
{
Frame label=“Weather”
{
Text item=Sunrise_Sunset
Text item=Sensor_2_temperature label=“Outside temperature [%.1f C]” icon=“temperature”
Text item=Sensor_2_Luminance label=“Outside Luminance [%.1f]” icon=“sun”
Text item=Sensor_Smoke_1_temperature label=“Inside temperature [%.1f C]” icon=“temperature”
Text item=Sensor_Thermostat_temperature label=“Thermo temperature [%.1f C]” icon=“temperature”
}

Frame label="Control" 
      {
	Group item=AllLights label="Lights" icon="light" 
              {
            	Frame label="Poolroom" 
                      {
			Switch item=Light_GF_Poolroom  label="Lamp" icon="light"	
			Colorpicker    item=Light_GF_Poolroom_C   label="Hue"
			Slider         item=Light_GF_Poolroom_T   label="Color Temperature" 
	          }
            	Frame label="Lounge" 
                      {
			Switch item=Light_GF_Lounge  label="Lamp" icon="light"	
			Colorpicker    item=Light_GF_Lounge_C   label="Hue"
			Slider         item=Light_GF_Lounge_T   label="Color Temperature" 
		  } 
            	Frame label="Kitchen Cabinet" 
                      {
			Switch item=Light_GF_KitchenCabinet  label="Lamp" icon="light"	
			Colorpicker    item=Light_GF_KitchenCabinet_C   label="Hue"
			Slider         item=Light_GF_KitchenCabinet_T   label="Color Temperature" 
		  }
            	Frame label="Bedroom" 
                      {
			Switch item=Light_GF_Bedroom  label="Lamp" icon="light"	
			Slider	       item=Light_GF_Bedroom_B   label="Brightness"
			Slider         item=Light_GF_Bedroom_T   label="Color Temperature" 
		  }
		Frame label="Kitchen"
		  {
			Switch item=Switch_GF_Kitchen label="Lamp" icon="light"
		  }
            	Frame label="External" 
                      {
			Switch item=Switch_GF_ExternalRear_Switch label="External Rear" icon="light"	
			Switch item=Switch_GF_ExternalFront label="External Front" icon="light"	
			Switch item=Switch_GF_ExternalParty label="Party Lights" icon="light"	
		  }
	  }


	Group item=AllShutters label="Shutters" 
              {
		Switch item=Shutter_GF_Poolroom mappings=[100="Close", 70="Half", 0="Open"]			
		Switch item=Shutter_GF_MainBed mappings=[100="Close", 70="Half", 0="Open"]			
		Switch item=Shutter_GF_SecondBed mappings=[100="Close", 70="Half", 0="Open"]			
		Switch item=Shutter_GF_Laundry mappings=[100="Close", 70="Half", 0="Open"]			
	  }		
	Group item=Windows label="Windows" 
              {
		Switch item=Window_GF_Poolroom mappings=[0="Close", 50="Half", 100="Open"]			
		Switch item=Window_GF_Lounge mappings=[0="Close", 50="Half", 100="Open"]			
	  }	
	Group item=Media label="Media" 
              {
		Switch item=LG_TV_Power	label="TV Power"		
                    Switch item=MediaPC 
                    Switch item=LG_TV_Toast_Dummy 
                    Switch item=RXV773_Power label="Yamaha Power" 
                    Switch item=RXV773_Mute  label="Yamaha Mute"
		Switch item=Thermostat_Clock label="Clock"		  	
		Switch item=Scene_Media label="Media"
		Switch item=Fix_Clock  label="Fix Clock"		  	
          }	
	Group item=HeatingCooling label="Heating / Cooling" 
              {
 			Text item=Sensor_Thermostat_temperature label="Room temperature [%.1f C]" icon="temperature"		
    		Selection item=Sensor_Thermostat_Mode label="Thermostat Mode [%d]" 
    		Selection item=Sensor_Thermostat_State label="Thermostat Setting" icon="gas" mappings=[0="Off",2="Heat",3="Cool",4="Auto",5="Resume"]
                    Setpoint item=Sensor_Thermostat_Setpoint label="Set Point [%.1f C]" minValue=17 maxValue=24 step=0.5

    	  }	
       }	

Frame label="Status" 
      {
	Group item=AllBatteries label="Batteries" icon="battery" 
              {
		Text item=Sensor_Smoke_1_Battery label="Lounge Smoke Detector [%.1f]" icon="battery"		
		Text item=Sensor_1_Battery label="Sensor 1 [%.1f]" icon="battery"		
		Text item=Sensor_2_Battery label="Sensor 2 [%.1f]" icon="battery"		
	  }		
      }

}

5

Replace C by °C

1 Like