Upgrade XChart to 3.8.8 (#4628)

Upgrade XChart from 3.1.0 to 3.8.8
See changelog:
https://knowm.org/open-source/xchart/xchart-change-log/

Signed-off-by: Holger Friedrich <mail@holger-friedrich.de>

bundles/org.openhab.core.ui/NOTICE

@@ -15,10 +15,10 @@ https://github.com/openhab/openhab-core
 
 == Third-party Content
 
-xchart-3.1.0
+xchart-3.8.8
 * License: Apache License, 2.0
 * Project: http://knowm.org/open-source/xchart
-* Source: https://github.com/timmolter/XChart/tree/xchart-3.1.0
+* Source: https://github.com/knowm/XChart/tree/xchart-3.8.8
 
 == Third-party license(s)
 

bundles/org.openhab.core.ui/bnd.bnd

@@ -4,4 +4,7 @@ Private-Package: \
   org.knowm.xchart.*
 Import-Package: \
   de.erichseifert.vectorgraphics2d.*;resolution:=optional,\
+  de.rototor.pdfbox.*;resolution:=optional,\
+  com.madgag.*;resolution:=optional,\
+  org.apache.pdfbox.*;resolution:=optional,\
   *

bundles/org.openhab.core.ui/pom.xml

@@ -18,8 +18,14 @@
     <dependency>
       <groupId>org.knowm.xchart</groupId>
       <artifactId>xchart</artifactId>
-      <!-- Newer versions have issues with customized grid lines, see: https://github.com/knowm/XChart/issues/628 -->
-      <version>3.1.0</version>
+      <version>3.8.8</version>
+      <!-- for pdfbox issue https://issues.apache.org/jira/browse/PDFBOX-5722 merged but not included in 3.8.8 -->
+      <exclusions>
+        <exclusion>
+          <groupId>org.junit.jupiter</groupId>
+          <artifactId>junit-jupiter</artifactId>
+        </exclusion>
+      </exclusions>
     </dependency>
     <dependency>
       <groupId>org.openhab.core.bundles</groupId>

bundles/org.openhab.core.ui/src/main/java/org/openhab/core/ui/internal/chart/defaultchartprovider/DefaultChartProvider.java

@@ -32,7 +32,7 @@ import org.eclipse.jdt.annotation.Nullable;
 import org.knowm.xchart.XYChart;
 import org.knowm.xchart.XYChartBuilder;
 import org.knowm.xchart.XYSeries;
-import org.knowm.xchart.style.Styler;
+import org.knowm.xchart.style.AxesChartStyler.TextAlignment;
 import org.knowm.xchart.style.Styler.LegendPosition;
 import org.knowm.xchart.style.XYStyler;
 import org.knowm.xchart.style.markers.None;
@@ -194,14 +194,14 @@ public class DefaultChartProvider implements ChartProvider {
         // axis
         styler.setAxisTickLabelsFont(chartTheme.getAxisTickLabelsFont(dpi));
         styler.setAxisTickLabelsColor(chartTheme.getAxisTickLabelsColor());
-        styler.setXAxisMin(startTime.toInstant().toEpochMilli());
-        styler.setXAxisMax(endTime.toInstant().toEpochMilli());
+        styler.setXAxisMin((double) startTime.toInstant().toEpochMilli());
+        styler.setXAxisMax((double) endTime.toInstant().toEpochMilli());
         int yAxisSpacing = Math.max(height / 10, chartTheme.getAxisTickLabelsFont(dpi).getSize());
         if (yAxisDecimalPattern != null) {
             styler.setYAxisDecimalPattern(yAxisDecimalPattern);
         }
         styler.setYAxisTickMarkSpacingHint(yAxisSpacing);
-        styler.setYAxisLabelAlignment(Styler.TextAlignment.Right);
+        styler.setYAxisLabelAlignment(TextAlignment.Right);
         // chart
         styler.setChartBackgroundColor(chartTheme.getChartBackgroundColor());
         styler.setChartFontColor(chartTheme.getChartFontColor());