Encoding error with PMD

The PMD rule 'Avoid Duplicate Literals' induces error while parsing the file pmd.xml. The java file seems to have the EUR symbol (€) directly in the source.

pmd.xml :

<violation line="164" rule="AvoidDuplicateLiterals" ruleset="String and StringBuffer Rules" package="xxxxxx" class="xxxxx" method="exportToPDF" externalInfoUrl="http://pmd.sourceforge.net/rules/strings.html#AvoidDuplicateLiterals" priority="3">
The String literal " &u20ac; TTC\n" appears 3 times in this file; the first occurrence is on line 164
</violation>

[Fatal Error] pmd.xml:117:34: The entity "u20ac" was referenced, but not declared.

[ERROR] Cannot execute the command org.codehaus.sonar:sonar-core-maven-plugin::collect

ch.hortis.sonar.mvn.mc.XmlParserException: can not parse the file .....\trunk\target\pmd.xml

at ch.hortis.sonar.mvn.mc.XmlReportParser.parse(XmlReportParser.java:72)

at ch.hortis.sonar.mvn.mc.PMDCollector.initialize(PMDCollector.java:47)

at ch.hortis.sonar.mvn.mc.BaseMeasuresCollector.initialize(BaseMeasuresCollector.java:58)

at ch.hortis.sonar.mvn.CollectMojo.collectAndPersist(CollectMojo.java:269)

at ch.hortis.sonar.mvn.CollectMojo.collect(CollectMojo.java:321)