tagger.CrfFeatureExtractor not found

[ahmedahmedov]

While trying to load a pre-trained model, I get the following error:

Exception in thread "main" java.lang.ClassNotFoundException: tagger.CrfFeatureExtractor at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348) at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:677) at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1826) at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1713) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2000) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:422) at com.aliasi.crf.ChainCrf$Serializer.read(ChainCrf.java:1048) at com.aliasi.util.AbstractExternalizable.readExternal(AbstractExternalizable.java:141) at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:2076) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2025) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:422) at com.aliasi.util.AbstractExternalizable.readObject(AbstractExternalizable.java:310)

As far as I can see from the source code, there is no CrfFeatureExtractor class. I have tested both 4.1.0 and 4.1.2