Issue with loading font using JaspersReport

I have an issue with loading my own font.

I've exported the font using iReports and this tutorial.

This resulted in having the files:

/resources/jasperreports_extension.properties
/resources/fonts/fontsfamily1480698239543.xml
/resources/fonts/Lato-Bold.ttf
/resources/fonts/Lato-BoldItalic.ttf
/resources/fonts/Lato-Italic.ttf
/resources/fonts/Lato-Regular.ttf

Where jasperreports_extension.properties:

net.sf.jasperreports.extension.registry.factory.fonts=net.sf.jasperreports.engine.fonts.SimpleFontExtensionsRegistryFactory
net.sf.jasperreports.extension.registry.factory.simple.font.families=net.sf.jasperreports.engine.fonts.SimpleFontExtensionsRegistryFactory
net.sf.jasperreports.extension.simple.font.families.Lato=fonts/fontsfamily1480698239543.xml

And fontsfamily1480698239543.xml:

<?xml version="1.0" encoding="UTF-8"?>
<fontFamilies>
   <fontFamily name="Lato">
       <normal><![CDATA[fonts/Lato-Regular.ttf]]></normal>
       <bold><![CDATA[fonts/Lato-Bold.ttf]]></bold>
       <italic><![CDATA[fonts/Lato-Italic.ttf]]></italic>
       <boldItalic><![CDATA[fonts/Lato-BoldItalic.ttf]]></boldItalic>
       <pdfEncoding><![CDATA[Cp1250]]></pdfEncoding>
       <pdfEmbedded><![CDATA[true]]></pdfEmbedded>
   </fontFamily>
</fontFamilies>

In my report.jrxml I use the following for text:

        <staticText>
            <reportElement style="Colored" x="119" y="93" width="161" height="15" uuid="724f085b-cb64-4d11-ac64-dc23e6f04553"/>
            <textElement markup="none">
                <font fontName="Lato" size="10" pdfEncoding="Cp1250" isPdfEmbedded="true"/>
            </textElement>
            <text><![CDATA[Whatever]]></text>
        </staticText>

        <staticText>
            <reportElement x="198" y="200" width="154" height="24" uuid="95b310d8-19bf-4485-840f-f3f5076b225e"/>
            <textElement markup="none">
                <font size="14" isItalic="false" isUnderline="false" pdfFontName="Lato" pdfEncoding="Cp1250" isPdfEmbedded="true"/>
            </textElement>
            <text><![CDATA[Address:]]></text>
        </staticText>

When I am trying to generate the file, I get the following error:

net.sf.jasperreports.engine.JRRuntimeException: Could not load the following font: 
pdfFontName: Lato
pdfEncoding: Cp1250
isPdfEmbedded : true] with root cause
net.sf.jasperreports.engine.JRRuntimeException: Could not load the following font: 
pdfFontName: Lato
pdfEncoding: Cp1250
isPdfEmbedded : true
    at net.sf.jasperreports.engine.export.JRPdfExporter.getFont(JRPdfExporter.java:2176) ~[jasperreports-6.1.0.jar:6.1.0]

What am I doing wrong?

Update

I've applied changes with accordance to comment by AlexK and dada67, but this still didn't changed the font that is generated in the PDF. However, I can see the font in iReports application. I now use:

        <staticText>
            <reportElement x="198" y="200" width="154" height="24" uuid="95b310d8-19bf-4485-840f-f3f5076b225e"/>
            <textElement markup="none">
                <font size="14" fontName="Lato"/>
            </textElement>
            <text><![CDATA[Address:]]></text>
        </staticText>

Which doesn't throw any error.

Here is how I generate the pdf in java:

ClassLoader classLoader = getClass().getClassLoader();
JasperReport jasperReportSpec = JasperCompileManager.compileReport(classLoader.getResourceAsStream("reporting/Example.jrxml"));
JasperPrint jasperPrintSpec = JasperFillManager.fillReport(jasperReportSpec, parameters, new JREmptyDataSource());
files.put("generatedFile", JasperExportManager.exportReportToPdf(jasperPrintSpec));

回答1:

When you use font extensions you should only set the fontName attribute.

Remove the pdfFontName, pdfEncoding and isPdfEmbedded attributes from the text elements so that the PDF exporter will use the font as defined in the font extension.

回答2:

Turns out that the issue was that I was not loading the font in my classpath. Thanks to @AlexD, I've managed to add it using maven.