Due to a HW-issue with my installation, I have had to re-install on a new server and thought I would use the opportunity to move to a docker install. Steep learning curve - but I think I got it 
My HW is AMD64 with 16GB and 250GB storage, running Ubuntu server 25.04 (GNU/Linux 6.14.0-28-generic x86_64) with Docker and Portainer installed.
Openhab in a portainer container is running OH5.0.1. Java version states:
root@homeserver:/openhab# java --version
openjdk 21.0.8 2025-07-15
OpenJDK Runtime Environment (build 21.0.8+9-Debian-1)
OpenJDK 64-Bit Server VM (build 21.0.8+9-Debian-1, mixed mode, sharing)
I have restored my old OH-installation and most seems to work (and very fast). My problem is however, that no charts are shown on the BasicUI and when looking in openhab.log, I see it throws this message:
2025-08-23 08:50:13.585 [WARN ] [org.eclipse.jetty.server.HttpChannel] - /chart
java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11FontManager
at sun.font.PlatformFontInfo.createFontManager(PlatformFontInfo.java:37) ~[?:?]
at sun.font.FontManagerFactory.getInstance(FontManagerFactory.java:51) ~[?:?]
at java.awt.Font.getFont2D(Font.java:526) ~[?:?]
at java.awt.Font.defaultLineMetrics(Font.java:2394) ~[?:?]
at java.awt.Font.getLineMetrics(Font.java:2501) ~[?:?]
at java.awt.font.TextLayout.fastInit(TextLayout.java:597) ~[?:?]
at java.awt.font.TextLayout.<init>(TextLayout.java:392) ~[?:?]
at org.knowm.xchart.internal.chartpart.AxisTickCalculator_.willLabelsFitInTickSpaceHint(AxisTickCalculator_.java:134) ~[?:?]
at org.knowm.xchart.internal.chartpart.AxisTickCalculator_Date.calculate(AxisTickCalculator_Date.java:253) ~[?:?]
at org.knowm.xchart.internal.chartpart.AxisTickCalculator_Date.<init>(AxisTickCalculator_Date.java:101) ~[?:?]
at org.knowm.xchart.internal.chartpart.Axis.getAxisTickCalculatorForX(Axis.java:530) ~[?:?]
at org.knowm.xchart.internal.chartpart.Axis.getAxisTickCalculator(Axis.java:390) ~[?:?]
at org.knowm.xchart.internal.chartpart.Axis.getXAxisHeightHint(Axis.java:293) ~[?:?]
at org.knowm.xchart.internal.chartpart.Axis.preparePaint(Axis.java:161) ~[?:?]
at org.knowm.xchart.internal.chartpart.AxisPair.paint(AxisPair.java:120) ~[?:?]
at org.knowm.xchart.XYChart.paint(XYChart.java:416) ~[?:?]
at org.openhab.core.ui.internal.chart.defaultchartprovider.DefaultChartProvider.createChart(DefaultChartProvider.java:305) ~[?:?]
at org.openhab.core.ui.internal.chart.ChartServlet.doGet(ChartServlet.java:307) ~[?:?]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:497) ~[bundleFile:4.0.4]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:584) ~[bundleFile:4.0.4]
at org.ops4j.pax.web.service.spi.servlet.OsgiInitializedServlet.service(OsgiInitializedServlet.java:102) ~[?:?]
at org.eclipse.jetty.servlet.ServletHolder$NotAsync.service(ServletHolder.java:1450) ~[?:?]
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:799) ~[?:?]
at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1656) ~[?:?]
at org.ops4j.pax.web.service.spi.servlet.OsgiFilterChain.doFilter(OsgiFilterChain.java:113) ~[?:?]
at org.ops4j.pax.web.service.jetty.internal.PaxWebServletHandler.doHandle(PaxWebServletHandler.java:334) ~[?:?]
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) ~[?:?]
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:600) ~[?:?]
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[?:?]
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235) ~[?:?]
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624) ~[?:?]
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233) ~[?:?]
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1440) ~[?:?]
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188) ~[?:?]
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:505) ~[?:?]
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594) ~[?:?]
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186) ~[?:?]
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1355) ~[?:?]
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) ~[?:?]
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:234) ~[?:?]
at org.ops4j.pax.web.service.jetty.internal.PrioritizedHandlerCollection.handle(PrioritizedHandlerCollection.java:96) ~[?:?]
at org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:731) ~[?:?]
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[?:?]
at org.eclipse.jetty.server.Server.handle(Server.java:516) ~[?:?]
at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:487) ~[?:?]
at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:732) ~[?:?]
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:479) ~[?:?]
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:277) ~[?:?]
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311) ~[?:?]
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105) ~[?:?]
at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104) ~[?:?]
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:338) ~[bundleFile:9.4.57.v20241219]
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:315) ~[bundleFile:9.4.57.v20241219]
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:173) ~[bundleFile:9.4.57.v20241219]
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131) ~[bundleFile:9.4.57.v20241219]
at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:409) ~[bundleFile:9.4.57.v20241219]
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:883) ~[bundleFile:9.4.57.v20241219]
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1034) ~[bundleFile:9.4.57.v20241219]
at java.lang.Thread.run(Thread.java:1583) [?:?]
Caused by: java.lang.ExceptionInInitializerError: Exception java.lang.UnsatisfiedLinkError: /usr/lib/jvm/java-21-openjdk-amd64/lib/libfontmanager.so: libharfbuzz.so.0: cannot open shared object file: No such file or directory [in thread "qtp1050773533-821"]
at jdk.internal.loader.NativeLibraries.load(Native Method) ~[?:?]
at jdk.internal.loader.NativeLibraries$NativeLibraryImpl.open(NativeLibraries.java:331) ~[?:?]
at jdk.internal.loader.NativeLibraries.loadLibrary(NativeLibraries.java:197) ~[?:?]
at jdk.internal.loader.NativeLibraries.loadLibrary(NativeLibraries.java:139) ~[?:?]
at jdk.internal.loader.NativeLibraries.findFromPaths(NativeLibraries.java:259) ~[?:?]
at jdk.internal.loader.NativeLibraries.loadLibrary(NativeLibraries.java:249) ~[?:?]
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:2427) ~[?:?]
at java.lang.Runtime.loadLibrary0(Runtime.java:916) ~[?:?]
at java.lang.System.loadLibrary(System.java:2063) ~[?:?]
at sun.font.FontManagerNativeLibrary$1.run(FontManagerNativeLibrary.java:60) ~[?:?]
at java.security.AccessController.doPrivileged(AccessController.java:319) ~[?:?]
at sun.font.FontManagerNativeLibrary.<clinit>(FontManagerNativeLibrary.java:33) ~[?:?]
at sun.font.SunFontManager$1.run(SunFontManager.java:269) ~[?:?]
at sun.font.SunFontManager$1.run(SunFontManager.java:267) ~[?:?]
at java.security.AccessController.doPrivileged(AccessController.java:319) ~[?:?]
at sun.font.SunFontManager.initStatic(SunFontManager.java:267) ~[?:?]
at sun.font.SunFontManager.<clinit>(SunFontManager.java:262) ~[?:?]
... 59 more
Having searched the forum it seems to be connected to java and potentially something missing in the dockerfile. Can anyone point me in the right direction to solve this?
