Charts without legend in OH2.2 and iOS client

jjmeseguer · January 18, 2018, 12:12pm

Hi,
Since I upgraded to openHAB 2.2, charts with only one item don’t show the legend when viewed from the iOS client. Charts with more than one item (groups) show it and everything works ok from the web browser. Also, lots of times, when the iOS client loads a chart, I get an exception.
Am I doing anything wrong?
I’m pasting below an example of item and chart definitios and an exception dump.
Thanks.

Number ConsumoElectrico "Consumo eléctrico [%.2f Wh]" <energy>

Chart item=ConsumoElectrico period=h refresh=300000 visibility=[ConsumoElectrico_Chart_Period==0] legend=true

2018-01-18 13:02:50.173 [WARN ] [eclipse.jetty.servlet.ServletHandler] - /chart
javax.imageio.IIOException: I/O error writing PNG file!
	at com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1168) [?:?]
	at javax.imageio.ImageWriter.write(ImageWriter.java:615) [?:?]
	at javax.imageio.ImageIO.doWrite(ImageIO.java:1612) [?:?]
	at javax.imageio.ImageIO.write(ImageIO.java:1492) [?:?]
	at org.eclipse.smarthome.ui.internal.chart.ChartServlet.doGet(ChartServlet.java:302) [155:org.eclipse.smarthome.ui:0.10.0.b1]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) [31:javax.servlet-api:3.1.0]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [31:javax.servlet-api:3.1.0]
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:848) [88:org.eclipse.jetty.servlet:9.3.22.v20171030]
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:584) [88:org.eclipse.jetty.servlet:9.3.22.v20171030]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:71) [191:org.ops4j.pax.web.pax-web-jetty:6.0.7]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) [85:org.eclipse.jetty.security:9.3.22.v20171030]
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:284) [191:org.ops4j.pax.web.pax-web-jetty:6.0.7]
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512) [88:org.eclipse.jetty.servlet:9.3.22.v20171030]
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:80) [191:org.ops4j.pax.web.pax-web-jetty:6.0.7]
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.Server.handle(Server.java:534) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:333) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283) [79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108) [79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93) [79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at java.lang.Thread.run(Thread.java:748) [?:?]
Caused by: org.eclipse.jetty.io.EofException
	at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:199) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.WriteFlusher.flush(WriteFlusher.java:420) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.WriteFlusher.write(WriteFlusher.java:313) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.AbstractEndPoint.write(AbstractEndPoint.java:147) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpConnection$SendCallback.process(HttpConnection.java:739) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.util.IteratingCallback.processing(IteratingCallback.java:241) ~[90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.IteratingCallback.iterate(IteratingCallback.java:224) ~[90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpConnection.send(HttpConnection.java:519) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpChannel.sendResponse(HttpChannel.java:750) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpChannel.write(HttpChannel.java:801) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:235) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:219) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpOutput.flush(HttpOutput.java:355) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at javax.imageio.stream.FileCacheImageOutputStream.flushBefore(FileCacheImageOutputStream.java:258) ~[?:?]
	at com.sun.imageio.plugins.png.ChunkStream.finish(PNGImageWriter.java:140) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.writeIEND(PNGImageWriter.java:951) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1164) ~[?:?]
	... 32 more
Caused by: java.io.IOException: Broken pipe
	at sun.nio.ch.FileDispatcherImpl.writev0(Native Method) ~[?:?]
	at sun.nio.ch.SocketDispatcher.writev(SocketDispatcher.java:51) ~[?:?]
	at sun.nio.ch.IOUtil.write(IOUtil.java:148) ~[?:?]
	at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:504) ~[?:?]
	at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:179) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.WriteFlusher.flush(WriteFlusher.java:420) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.WriteFlusher.write(WriteFlusher.java:313) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.AbstractEndPoint.write(AbstractEndPoint.java:147) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpConnection$SendCallback.process(HttpConnection.java:739) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.util.IteratingCallback.processing(IteratingCallback.java:241) ~[90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.IteratingCallback.iterate(IteratingCallback.java:224) ~[90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpConnection.send(HttpConnection.java:519) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpChannel.sendResponse(HttpChannel.java:750) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpChannel.write(HttpChannel.java:801) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:235) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:219) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpOutput.flush(HttpOutput.java:355) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at javax.imageio.stream.FileCacheImageOutputStream.flushBefore(FileCacheImageOutputStream.java:258) ~[?:?]
	at com.sun.imageio.plugins.png.ChunkStream.finish(PNGImageWriter.java:140) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.writeIEND(PNGImageWriter.java:951) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1164) ~[?:?]
	... 32 more
2018-01-18 13:02:50.197 [WARN ] [org.eclipse.jetty.server.HttpChannel] - //myopenhab.org/chart?random=910&period=h&items=ConsumoElectrico
javax.servlet.ServletException: javax.imageio.IIOException: I/O error writing PNG file!
	at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:88) [191:org.ops4j.pax.web.pax-web-jetty:6.0.7]
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.Server.handle(Server.java:534) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:333) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283) [79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108) [79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93) [79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at java.lang.Thread.run(Thread.java:748) [?:?]
Caused by: javax.imageio.IIOException: I/O error writing PNG file!
	at com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1168) ~[?:?]
	at javax.imageio.ImageWriter.write(ImageWriter.java:615) ~[?:?]
	at javax.imageio.ImageIO.doWrite(ImageIO.java:1612) ~[?:?]
	at javax.imageio.ImageIO.write(ImageIO.java:1492) ~[?:?]
	at org.eclipse.smarthome.ui.internal.chart.ChartServlet.doGet(ChartServlet.java:302) ~[?:?]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) ~[?:?]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) ~[?:?]
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:848) ~[?:?]
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:584) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:71) ~[?:?]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) ~[?:?]
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) ~[?:?]
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226) ~[?:?]
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:284) ~[?:?]
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512) ~[?:?]
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) ~[?:?]
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112) ~[?:?]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:80) ~[?:?]
	... 13 more
Caused by: org.eclipse.jetty.io.EofException
	at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:199) ~[?:?]
	at org.eclipse.jetty.io.WriteFlusher.flush(WriteFlusher.java:420) ~[?:?]
	at org.eclipse.jetty.io.WriteFlusher.write(WriteFlusher.java:313) ~[?:?]
	at org.eclipse.jetty.io.AbstractEndPoint.write(AbstractEndPoint.java:147) ~[?:?]
	at org.eclipse.jetty.server.HttpConnection$SendCallback.process(HttpConnection.java:739) ~[?:?]
	at org.eclipse.jetty.util.IteratingCallback.processing(IteratingCallback.java:241) ~[?:?]
	at org.eclipse.jetty.util.IteratingCallback.iterate(IteratingCallback.java:224) ~[?:?]
	at org.eclipse.jetty.server.HttpConnection.send(HttpConnection.java:519) ~[?:?]
	at org.eclipse.jetty.server.HttpChannel.sendResponse(HttpChannel.java:750) ~[?:?]
	at org.eclipse.jetty.server.HttpChannel.write(HttpChannel.java:801) ~[?:?]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:235) ~[?:?]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:219) ~[?:?]
	at org.eclipse.jetty.server.HttpOutput.flush(HttpOutput.java:355) ~[?:?]
	at javax.imageio.stream.FileCacheImageOutputStream.flushBefore(FileCacheImageOutputStream.java:258) ~[?:?]
	at com.sun.imageio.plugins.png.ChunkStream.finish(PNGImageWriter.java:140) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.writeIEND(PNGImageWriter.java:951) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1164) ~[?:?]
	at javax.imageio.ImageWriter.write(ImageWriter.java:615) ~[?:?]
	at javax.imageio.ImageIO.doWrite(ImageIO.java:1612) ~[?:?]
	at javax.imageio.ImageIO.write(ImageIO.java:1492) ~[?:?]
	at org.eclipse.smarthome.ui.internal.chart.ChartServlet.doGet(ChartServlet.java:302) ~[?:?]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) ~[?:?]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) ~[?:?]
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:848) ~[?:?]
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:584) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:71) ~[?:?]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) ~[?:?]
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) ~[?:?]
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226) ~[?:?]
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:284) ~[?:?]
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512) ~[?:?]
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) ~[?:?]
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112) ~[?:?]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:80) ~[?:?]
	... 13 more
Caused by: java.io.IOException: Broken pipe
	at sun.nio.ch.FileDispatcherImpl.writev0(Native Method) ~[?:?]
	at sun.nio.ch.SocketDispatcher.writev(SocketDispatcher.java:51) ~[?:?]
	at sun.nio.ch.IOUtil.write(IOUtil.java:148) ~[?:?]
	at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:504) ~[?:?]
	at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:179) ~[?:?]
	at org.eclipse.jetty.io.WriteFlusher.flush(WriteFlusher.java:420) ~[?:?]
	at org.eclipse.jetty.io.WriteFlusher.write(WriteFlusher.java:313) ~[?:?]
	at org.eclipse.jetty.io.AbstractEndPoint.write(AbstractEndPoint.java:147) ~[?:?]
	at org.eclipse.jetty.server.HttpConnection$SendCallback.process(HttpConnection.java:739) ~[?:?]
	at org.eclipse.jetty.util.IteratingCallback.processing(IteratingCallback.java:241) ~[?:?]
	at org.eclipse.jetty.util.IteratingCallback.iterate(IteratingCallback.java:224) ~[?:?]
	at org.eclipse.jetty.server.HttpConnection.send(HttpConnection.java:519) ~[?:?]
	at org.eclipse.jetty.server.HttpChannel.sendResponse(HttpChannel.java:750) ~[?:?]
	at org.eclipse.jetty.server.HttpChannel.write(HttpChannel.java:801) ~[?:?]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:235) ~[?:?]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:219) ~[?:?]
	at org.eclipse.jetty.server.HttpOutput.flush(HttpOutput.java:355) ~[?:?]
	at javax.imageio.stream.FileCacheImageOutputStream.flushBefore(FileCacheImageOutputStream.java:258) ~[?:?]
	at com.sun.imageio.plugins.png.ChunkStream.finish(PNGImageWriter.java:140) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.writeIEND(PNGImageWriter.java:951) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1164) ~[?:?]
	at javax.imageio.ImageWriter.write(ImageWriter.java:615) ~[?:?]
	at javax.imageio.ImageIO.doWrite(ImageIO.java:1612) ~[?:?]
	at javax.imageio.ImageIO.write(ImageIO.java:1492) ~[?:?]
	at org.eclipse.smarthome.ui.internal.chart.ChartServlet.doGet(ChartServlet.java:302) ~[?:?]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) ~[?:?]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) ~[?:?]
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:848) ~[?:?]
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:584) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:71) ~[?:?]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) ~[?:?]
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) ~[?:?]
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226) ~[?:?]
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:284) ~[?:?]
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512) ~[?:?]
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) ~[?:?]
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112) ~[?:?]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:80) ~[?:?]
	... 13 more
2018-01-18 13:03:06.762 [WARN ] [io.openhabcloud.internal.CloudClient] - Jetty request 516273 failed: null

jjmeseguer · January 24, 2018, 8:26am

Hi,
It’s getting worse. Now, from the iOS client, when connecting though myopenhab.org (it doesn’t happen when connecting from my LAN to my server), charts with only one element don’t show the legend or the graph:

And I’m getting these errors and exceptions in the log:

2018-01-24 09:15:16.108 [WARN ] [io.openhabcloud.internal.CloudClient] - Jetty request 408628 failed: null
2018-01-24 09:15:26.621 [WARN ] [io.openhabcloud.internal.CloudClient] - Jetty request 408665 failed: null
2018-01-24 09:15:26.626 [WARN ] [io.openhabcloud.internal.CloudClient] - Jetty request 408663 failed: null
2018-01-24 09:15:26.703 [WARN ] [eclipse.jetty.servlet.ServletHandler] - /chart
javax.imageio.IIOException: I/O error writing PNG file!
	at com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1168) [?:?]
	at javax.imageio.ImageWriter.write(ImageWriter.java:615) [?:?]
	at javax.imageio.ImageIO.doWrite(ImageIO.java:1612) [?:?]
	at javax.imageio.ImageIO.write(ImageIO.java:1492) [?:?]
	at org.eclipse.smarthome.ui.internal.chart.ChartServlet.doGet(ChartServlet.java:302) [155:org.eclipse.smarthome.ui:0.10.0.b1]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) [31:javax.servlet-api:3.1.0]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [31:javax.servlet-api:3.1.0]
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:848) [88:org.eclipse.jetty.servlet:9.3.22.v20171030]
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:584) [88:org.eclipse.jetty.servlet:9.3.22.v20171030]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:71) [191:org.ops4j.pax.web.pax-web-jetty:6.0.7]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) [85:org.eclipse.jetty.security:9.3.22.v20171030]
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:284) [191:org.ops4j.pax.web.pax-web-jetty:6.0.7]
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512) [88:org.eclipse.jetty.servlet:9.3.22.v20171030]
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:80) [191:org.ops4j.pax.web.pax-web-jetty:6.0.7]
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.Server.handle(Server.java:534) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:333) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283) [79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108) [79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93) [79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at java.lang.Thread.run(Thread.java:748) [?:?]
Caused by: org.eclipse.jetty.io.EofException
	at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:199) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.WriteFlusher.flush(WriteFlusher.java:420) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.WriteFlusher.write(WriteFlusher.java:313) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.AbstractEndPoint.write(AbstractEndPoint.java:147) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpConnection$SendCallback.process(HttpConnection.java:739) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.util.IteratingCallback.processing(IteratingCallback.java:241) ~[90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.IteratingCallback.iterate(IteratingCallback.java:224) ~[90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpConnection.send(HttpConnection.java:519) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpChannel.sendResponse(HttpChannel.java:750) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpChannel.write(HttpChannel.java:801) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:235) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:219) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpOutput.flush(HttpOutput.java:355) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at javax.imageio.stream.FileCacheImageOutputStream.flushBefore(FileCacheImageOutputStream.java:258) ~[?:?]
	at com.sun.imageio.plugins.png.IDATOutputStream.finishChunk(PNGImageWriter.java:196) ~[?:?]
	at com.sun.imageio.plugins.png.IDATOutputStream.finish(PNGImageWriter.java:254) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.write_IDAT(PNGImageWriter.java:945) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1158) ~[?:?]
	... 32 more
Caused by: java.io.IOException: Broken pipe
	at sun.nio.ch.FileDispatcherImpl.writev0(Native Method) ~[?:?]
	at sun.nio.ch.SocketDispatcher.writev(SocketDispatcher.java:51) ~[?:?]
	at sun.nio.ch.IOUtil.write(IOUtil.java:148) ~[?:?]
	at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:504) ~[?:?]
	at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:179) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.WriteFlusher.flush(WriteFlusher.java:420) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.WriteFlusher.write(WriteFlusher.java:313) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.AbstractEndPoint.write(AbstractEndPoint.java:147) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpConnection$SendCallback.process(HttpConnection.java:739) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.util.IteratingCallback.processing(IteratingCallback.java:241) ~[90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.IteratingCallback.iterate(IteratingCallback.java:224) ~[90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpConnection.send(HttpConnection.java:519) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpChannel.sendResponse(HttpChannel.java:750) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpChannel.write(HttpChannel.java:801) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:235) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:219) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpOutput.flush(HttpOutput.java:355) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at javax.imageio.stream.FileCacheImageOutputStream.flushBefore(FileCacheImageOutputStream.java:258) ~[?:?]
	at com.sun.imageio.plugins.png.IDATOutputStream.finishChunk(PNGImageWriter.java:196) ~[?:?]
	at com.sun.imageio.plugins.png.IDATOutputStream.finish(PNGImageWriter.java:254) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.write_IDAT(PNGImageWriter.java:945) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1158) ~[?:?]
	... 32 more
2018-01-24 09:15:26.762 [WARN ] [org.eclipse.jetty.server.HttpChannel] - //myopenhab.org/chart?
javax.servlet.ServletException: javax.imageio.IIOException: I/O error writing PNG file!
	at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:88) [191:org.ops4j.pax.web.pax-web-jetty:6.0.7]
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.Server.handle(Server.java:534) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:333) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283) [79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108) [79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93) [79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at java.lang.Thread.run(Thread.java:748) [?:?]
Caused by: javax.imageio.IIOException: I/O error writing PNG file!
	at com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1168) ~[?:?]
	at javax.imageio.ImageWriter.write(ImageWriter.java:615) ~[?:?]
	at javax.imageio.ImageIO.doWrite(ImageIO.java:1612) ~[?:?]
	at javax.imageio.ImageIO.write(ImageIO.java:1492) ~[?:?]
	at org.eclipse.smarthome.ui.internal.chart.ChartServlet.doGet(ChartServlet.java:302) ~[?:?]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) ~[?:?]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) ~[?:?]
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:848) ~[?:?]
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:584) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:71) ~[?:?]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) ~[?:?]
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) ~[?:?]
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226) ~[?:?]
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:284) ~[?:?]
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512) ~[?:?]
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) ~[?:?]
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112) ~[?:?]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:80) ~[?:?]
	... 13 more
Caused by: org.eclipse.jetty.io.EofException
	at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:199) ~[?:?]
	at org.eclipse.jetty.io.WriteFlusher.flush(WriteFlusher.java:420) ~[?:?]
	at org.eclipse.jetty.io.WriteFlusher.write(WriteFlusher.java:313) ~[?:?]
	at org.eclipse.jetty.io.AbstractEndPoint.write(AbstractEndPoint.java:147) ~[?:?]
	at org.eclipse.jetty.server.HttpConnection$SendCallback.process(HttpConnection.java:739) ~[?:?]
	at org.eclipse.jetty.util.IteratingCallback.processing(IteratingCallback.java:241) ~[?:?]
	at org.eclipse.jetty.util.IteratingCallback.iterate(IteratingCallback.java:224) ~[?:?]
	at org.eclipse.jetty.server.HttpConnection.send(HttpConnection.java:519) ~[?:?]
	at org.eclipse.jetty.server.HttpChannel.sendResponse(HttpChannel.java:750) ~[?:?]
	at org.eclipse.jetty.server.HttpChannel.write(HttpChannel.java:801) ~[?:?]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:235) ~[?:?]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:219) ~[?:?]
	at org.eclipse.jetty.server.HttpOutput.flush(HttpOutput.java:355) ~[?:?]
	at javax.imageio.stream.FileCacheImageOutputStream.flushBefore(FileCacheImageOutputStream.java:258) ~[?:?]
	at com.sun.imageio.plugins.png.IDATOutputStream.finishChunk(PNGImageWriter.java:196) ~[?:?]
	at com.sun.imageio.plugins.png.IDATOutputStream.finish(PNGImageWriter.java:254) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.write_IDAT(PNGImageWriter.java:945) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1158) ~[?:?]
	at javax.imageio.ImageWriter.write(ImageWriter.java:615) ~[?:?]
	at javax.imageio.ImageIO.doWrite(ImageIO.java:1612) ~[?:?]
	at javax.imageio.ImageIO.write(ImageIO.java:1492) ~[?:?]
	at org.eclipse.smarthome.ui.internal.chart.ChartServlet.doGet(ChartServlet.java:302) ~[?:?]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) ~[?:?]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) ~[?:?]
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:848) ~[?:?]
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:584) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:71) ~[?:?]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) ~[?:?]
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) ~[?:?]
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226) ~[?:?]
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:284) ~[?:?]
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512) ~[?:?]
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) ~[?:?]
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112) ~[?:?]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:80) ~[?:?]
	... 13 more
Caused by: java.io.IOException: Broken pipe
	at sun.nio.ch.FileDispatcherImpl.writev0(Native Method) ~[?:?]
	at sun.nio.ch.SocketDispatcher.writev(SocketDispatcher.java:51) ~[?:?]
	at sun.nio.ch.IOUtil.write(IOUtil.java:148) ~[?:?]
	at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:504) ~[?:?]
	at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:179) ~[?:?]
	at org.eclipse.jetty.io.WriteFlusher.flush(WriteFlusher.java:420) ~[?:?]
	at org.eclipse.jetty.io.WriteFlusher.write(WriteFlusher.java:313) ~[?:?]
	at org.eclipse.jetty.io.AbstractEndPoint.write(AbstractEndPoint.java:147) ~[?:?]
	at org.eclipse.jetty.server.HttpConnection$SendCallback.process(HttpConnection.java:739) ~[?:?]
	at org.eclipse.jetty.util.IteratingCallback.processing(IteratingCallback.java:241) ~[?:?]
	at org.eclipse.jetty.util.IteratingCallback.iterate(IteratingCallback.java:224) ~[?:?]
	at org.eclipse.jetty.server.HttpConnection.send(HttpConnection.java:519) ~[?:?]
	at org.eclipse.jetty.server.HttpChannel.sendResponse(HttpChannel.java:750) ~[?:?]
	at org.eclipse.jetty.server.HttpChannel.write(HttpChannel.java:801) ~[?:?]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:235) ~[?:?]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:219) ~[?:?]
	at org.eclipse.jetty.server.HttpOutput.flush(HttpOutput.java:355) ~[?:?]
	at javax.imageio.stream.FileCacheImageOutputStream.flushBefore(FileCacheImageOutputStream.java:258) ~[?:?]
	at com.sun.imageio.plugins.png.IDATOutputStream.finishChunk(PNGImageWriter.java:196) ~[?:?]
	at com.sun.imageio.plugins.png.IDATOutputStream.finish(PNGImageWriter.java:254) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.write_IDAT(PNGImageWriter.java:945) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1158) ~[?:?]
	at javax.imageio.ImageWriter.write(ImageWriter.java:615) ~[?:?]
	at javax.imageio.ImageIO.doWrite(ImageIO.java:1612) ~[?:?]
	at javax.imageio.ImageIO.write(ImageIO.java:1492) ~[?:?]
	at org.eclipse.smarthome.ui.internal.chart.ChartServlet.doGet(ChartServlet.java:302) ~[?:?]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) ~[?:?]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) ~[?:?]
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:848) ~[?:?]
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:584) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:71) ~[?:?]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) ~[?:?]
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) ~[?:?]
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226) ~[?:?]
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:284) ~[?:?]
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512) ~[?:?]
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) ~[?:?]
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112) ~[?:?]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) ~[?:?]
	at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:80) ~[?:?]
	... 13 more
2018-01-24 09:15:26.781 [WARN ] [eclipse.jetty.servlet.ServletHandler] - /chart
javax.imageio.IIOException: I/O error writing PNG file!
	at com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1168) [?:?]
	at javax.imageio.ImageWriter.write(ImageWriter.java:615) [?:?]
	at javax.imageio.ImageIO.doWrite(ImageIO.java:1612) [?:?]
	at javax.imageio.ImageIO.write(ImageIO.java:1492) [?:?]
	at org.eclipse.smarthome.ui.internal.chart.ChartServlet.doGet(ChartServlet.java:302) [155:org.eclipse.smarthome.ui:0.10.0.b1]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) [31:javax.servlet-api:3.1.0]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [31:javax.servlet-api:3.1.0]
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:848) [88:org.eclipse.jetty.servlet:9.3.22.v20171030]
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:584) [88:org.eclipse.jetty.servlet:9.3.22.v20171030]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:71) [191:org.ops4j.pax.web.pax-web-jetty:6.0.7]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) [85:org.eclipse.jetty.security:9.3.22.v20171030]
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:284) [191:org.ops4j.pax.web.pax-web-jetty:6.0.7]
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512) [88:org.eclipse.jetty.servlet:9.3.22.v20171030]
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:80) [191:org.ops4j.pax.web.pax-web-jetty:6.0.7]
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.Server.handle(Server.java:534) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:333) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283) [79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108) [79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93) [79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at java.lang.Thread.run(Thread.java:748) [?:?]
Caused by: org.eclipse.jetty.io.EofException
	at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:199) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.WriteFlusher.flush(WriteFlusher.java:420) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.WriteFlusher.write(WriteFlusher.java:313) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.AbstractEndPoint.write(AbstractEndPoint.java:147) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpConnection$SendCallback.process(HttpConnection.java:739) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.util.IteratingCallback.processing(IteratingCallback.java:241) ~[90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.IteratingCallback.iterate(IteratingCallback.java:224) ~[90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpConnection.send(HttpConnection.java:519) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpChannel.sendResponse(HttpChannel.java:750) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpChannel.write(HttpChannel.java:801) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:235) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:219) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpOutput.flush(HttpOutput.java:355) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at javax.imageio.stream.FileCacheImageOutputStream.flushBefore(FileCacheImageOutputStream.java:258) ~[?:?]
	at com.sun.imageio.plugins.png.IDATOutputStream.finishChunk(PNGImageWriter.java:196) ~[?:?]
	at com.sun.imageio.plugins.png.IDATOutputStream.finish(PNGImageWriter.java:254) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.write_IDAT(PNGImageWriter.java:945) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1158) ~[?:?]
	... 32 more
Caused by: java.io.IOException: Broken pipe
	at sun.nio.ch.FileDispatcherImpl.writev0(Native Method) ~[?:?]
	at sun.nio.ch.SocketDispatcher.writev(SocketDispatcher.java:51) ~[?:?]
	at sun.nio.ch.IOUtil.write(IOUtil.java:148) ~[?:?]
	at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:504) ~[?:?]
	at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:179) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.WriteFlusher.flush(WriteFlusher.java:420) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.WriteFlusher.write(WriteFlusher.java:313) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.AbstractEndPoint.write(AbstractEndPoint.java:147) ~[79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpConnection$SendCallback.process(HttpConnection.java:739) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.util.IteratingCallback.processing(IteratingCallback.java:241) ~[90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.IteratingCallback.iterate(IteratingCallback.java:224) ~[90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpConnection.send(HttpConnection.java:519) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpChannel.sendResponse(HttpChannel.java:750) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpChannel.write(HttpChannel.java:801) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:235) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:219) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpOutput.flush(HttpOutput.java:355) ~[87:org.eclipse.jetty.server:9.3.22.v20171030]
	at javax.imageio.stream.FileCacheImageOutputStream.flushBefore(FileCacheImageOutputStream.java:258) ~[?:?]
	at com.sun.imageio.plugins.png.IDATOutputStream.finishChunk(PNGImageWriter.java:196) ~[?:?]
	at com.sun.imageio.plugins.png.IDATOutputStream.finish(PNGImageWriter.java:254) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.write_IDAT(PNGImageWriter.java:945) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1158) ~[?:?]
	... 32 more
2018-01-24 09:15:26.964 [WARN ] [org.eclipse.jetty.server.HttpChannel] - //myopenhab.org/chart?random=85&period=D&items=DespachoHumedad
javax.servlet.ServletException: javax.imageio.IIOException: I/O error writing PNG file!
	at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:88) [191:org.ops4j.pax.web.pax-web-jetty:6.0.7]
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.Server.handle(Server.java:534) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:333) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251) [87:org.eclipse.jetty.server:9.3.22.v20171030]
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283) [79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108) [79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93) [79:org.eclipse.jetty.io:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589) [90:org.eclipse.jetty.util:9.3.22.v20171030]
	at java.lang.Thread.run(Thread.java:748) [?:?]
Caused by: javax.imageio.IIOException: I/O error writing PNG file!
	at com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1168) ~[?:?]
	at javax.imageio.ImageWriter.write(ImageWriter.java:615) ~[?:?]
	at javax.imageio.ImageIO.doWrite(ImageIO.java:1612) ~[?:?]
	at javax.imageio.ImageIO.write(ImageIO.java:1492) ~[?:?]

...

Please, help!

jjmeseguer · January 24, 2018, 8:34am

Also, many dynamic icons don’t work when on the app and through myopenhab.org.
When using the app at home against the server they work ok.
When using the browser at home or through myopenhab.org, they work ok.

nobbi123 · January 24, 2018, 9:58am

I have the same problem since I updated to 2.2 -.-

Koen · January 24, 2018, 5:57pm

same problem here. I thought it was me. happy to see that I do not have it alone. look forward to a solution

waspie · January 26, 2018, 1:39am

single charts add legend=true to the chart line.
no clue on the error, i have tons of them

jjmeseguer · January 26, 2018, 9:52am

Hi,
I already had legend=true in all of them and it only works when viewed from the browser.
Regards.

Guillermo_Schimmel · March 13, 2018, 5:18pm

Same here.

jjmeseguer · October 15, 2018, 11:22am

Still no legend in single item charts in iOS. Any news about this?