I think this covers it: https://mathematica.stackexchange.com/a/22729/9490
In[1]:= << JLink`
In[2]:= LoadJavaClass["java.text.Normalizer$Form"]
Out[2]= JLink`JavaClass["java.text.Normalizer$Form", 2, {
JLink`JVM["vm1"]}, 3, "java`text`Normalizer$Form`", False, True]
In[3]:= Normalizer$Form`NFKC
Out[3]= JLink`Objects`vm1`JavaObject31853183189909505
