in src/main/java/org/apache/maven/shared/verifier/util/ResourceExtractor.java [41:53]
public static File simpleExtractResources( Class<?> cl, String resourcePath )
throws IOException
{
String tempDirPath = System.getProperty( "maven.test.tmpdir", System.getProperty( "java.io.tmpdir" ) );
File tempDir = new File( tempDirPath );
File testDir = new File( tempDir, resourcePath );
FileUtils.deleteDirectory( testDir );
testDir = ResourceExtractor.extractResourcePath( cl, resourcePath, tempDir, false );
return testDir;
}