Charset name problem

gistfile1.txt

Log.d("Charset", "toString() : " + CharsetToolkit.getDefaultSystemCharset().toString());
Log.d("Charset", "displayName() : " + CharsetToolkit.getDefaultSystemCharset().displayName());
Log.d("Charset", "name() : " + CharsetToolkit.getDefaultSystemCharset().name());

Output :

D/Charset﹕ toString() : java.nio.charset.CharsetICU[UTF-8]
D/Charset﹕ displayName() : UTF-8
D/Charset﹕ name() : UTF-8

Then :

new URL('http://google.com').text fails with 

     Caused by: java.nio.charset.IllegalCharsetNameException: java.nio.charset.CharsetICU[UTF-8]
            at java.nio.charset.Charset.checkCharsetName(Charset.java:201)
            at java.nio.charset.Charset.forName(Charset.java:295)
            at java.io.InputStreamReader.<init>(InputStreamReader.java:85)
            at org.codehaus.groovy.runtime.ResourceGroovyMethods.newReader(ResourceGroovyMethods.java:2064)


new URL('http://google.com').getText("utf-8") works ok.