in src/main/org/apache/ant/antunit/listener/BaseAntUnitListener.java [188:196]
protected final String normalize(String buildFile) {
File base = parentTask != null ? parentTask.getProject().getBaseDir()
: new File(System.getProperty("user.dir"));
buildFile = FileUtils.getFileUtils().removeLeadingPath(base, new File(buildFile));
if (buildFile.length() > 0 && buildFile.charAt(0) == File.separatorChar) {
buildFile = buildFile.substring(1);
}
return buildFile.replace('.', '_').replace(':', '_').replace(File.separatorChar, '.');
}