The xyBar item label is not displayed in JFreeChart versions 1.5.4, 1.5.5 and 1.5.6

[AndrewZyablov-tech]

After upgrading to the new version of JFreeChart, item labels disappeared.

A study showed that in versions of JFreeChart from 1.5.0 to 1.5.3, item labels are displayed correctly.

And in versions of JFreeChart from 1.5.4 to 1.5.6, item labels disappeared.

[trashgod]

I can't reproduce this with v1.5.6. Can you show how you're using the labels?

[AndrewZyablov-tech]

springBootVersion=3.5.3
jasperReportsVersion=7.0.2
jFreeChartVersion=1.5.6

!-- Created with Jaspersoft Studio version 7.0.1.final using JasperReports Library version 7.0.1-573496633c2b4074e32f433154b543003f7d2498 --

`

<element kind="chart" chartType="xyBar" uuid="48f3c001-176d-4047-b1d8-d704aa73d909" x="1" y="0" width="601" height="132" showLegend="false" evaluationTime="Report" linkType="None" linkTarget="Self" titleColor="#000000" titlePosition="Top">
	<titleFont fontSize="11.0"/>
	<legendFont/>
	<dataset kind="xy">
		<series>
			<seriesExpression><![CDATA["SERIES 1"]]></seriesExpression>
			<labelExpression><![CDATA["1"]]></labelExpression>
			<yvalueExpression><![CDATA[50]]></yvalueExpression>
			<xvalueExpression><![CDATA[1]]></xvalueExpression>
		</series>
		<series>
			<seriesExpression><![CDATA["SERIES 2"]]></seriesExpression>
			<labelExpression><![CDATA["2"]]></labelExpression>
			<autoSort>true</autoSort>
			<yvalueExpression><![CDATA[75]]></yvalueExpression>
			<xvalueExpression><![CDATA[2]]></xvalueExpression>
		</series>
		<series>
			<seriesExpression><![CDATA["SERIES 3"]]></seriesExpression>
			<labelExpression><![CDATA["3"]]></labelExpression>
			<autoSort>true</autoSort>
			<yvalueExpression><![CDATA[100]]></yvalueExpression>
			<xvalueExpression><![CDATA[2]]></xvalueExpression>
		</series>
	</dataset>
	<plot categoryAxisLabelColor="#000000" categoryAxisTickLabelColor="#000000" categoryAxisTickLabelMask="" categoryAxisVerticalTickLabels="false" categoryAxisLineColor="#FFFFFF" valueAxisLabelColor="#000000" valueAxisTickLabelColor="#000000" valueAxisVerticalTickLabels="false" valueAxisLineColor="#FFFFFF" showTickMarks="false" showTickLabels="false" showLabels="true">
		<categoryAxisLabelFont fontSize="10.0"/>
		<categoryAxisTickLabelFont fontSize="10.0"/>
		<itemLabel color="#000000" backgroundColor="#FFFFFF">
			<font fontSize="10.0" strikeThrough="false" italic="false" bold="false" underline="false"/>
		</itemLabel>
		<seriesColor order="0" color="#FFFFFF"/>
		<seriesColor order="1" color="#C0F9E9"/>
		<seriesColor order="2" color="#3BE9B9"/>
	</plot>
</element>

`

[trashgod]

I'm not familiar with JasperReports; you may need to examine the generated code. In particular, look for something like this:

XYBarRenderer renderer = …; // get the renderer supplied by the ChartFactory
renderer.setDefaultItemLabelGenerator(new StandardXYItemLabelGenerator());
renderer.setDefaultItemLabelsVisible(true);

[AndrewZyablov-tech]

I examined the XYBarRenderer object, which returns JasperReports in two cases: JFreeChartVersion=1.5.3, where the item labels are displayed correctly:

and JFreeChartVersion=1.5.6, where they are missing:

At first glance, both versions have everything you need to display item labels. However, in the first case, the output is a correct PDF document, and in the second - without labels. Obviously, the XYBarRenderer objects are different for these versions. It is possible that JasperReports does not work correctly with the latest versions of JFreeChart. I would like to know if I can fix this problem on my own.

[trashgod]

Looking at the jasperreports repository, you might

• Try a different release; v7.0.3 seems to be current.
• Review relevant changes, for example.
• Scan issues or the forum for similar reports.