Jasper report formatting and font issues - jasper-reports

Question

I have the following Jasper Report subreport .jrxml file and it's producing very strange results.
Each row of data returned gets mysteriously split into 2 separate lines on the report. Specifically, the very last character in location_name appears on a new line (unless there's a comma in the data, in which case a new line starts there). Why does that happen?
<?xml version="1.0" encoding="UTF-8"?>
<jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports
http://jasperreports.sourceforge.net/xsd/jasperreport.xsd">
<queryString>
<![CDATA[SELECT substr(location_name, 1, 5) as location_name from location]]>
</queryString>
<field name="location_name" class="java.lang.String"/>
<detail>
<band height="25">
<textField>
<reportElement x="0" y="0" width="100" height="25"/>
<box topPadding="1"><topPen lineWidth="0.5"/></box>
<textElement>
<font fontName="Times New Roman" size="8"
isBold="true" pdfFontName="Helvetica-Bold"/>
</textElement>
<textFieldExpression class="java.lang.String">
<![CDATA[$F{location_name}]]>
</textFieldExpression>
</textField>
</band>
</detail>
</jasperReport>
One possible clue is that when I opened this in Jaspersoft Studio I got a warning, "The use of pdf font is deprecated and replaced by the font extension". So I tried removing fontName and pdfFontName, leaving textElement as just:
...
<textElement>
<font size="8" isBold="true" />
</textElement>
...
That helps in that each line of data now appears on a single line, but the isBold has no effect.
Barring a solution, does anyone have a sample of how to bold text in a Jasper report?

Answer 1

I resolved this by upgrading from jasperreports-4.0.2.jar to jasperreports-5.1.0.jar.