July 25th 2018 commit not backward compatible

[CyborgDroid]

Running a model trained with mallet 2.0.8 on new data breaks due to edd3a5a

# breaks in develop
ldamallet.convert_input(corpus=corpus, infer=True, serialize_corpus=False)

java.lang.ClassCastException: java.rmi.dgc.VMID cannot be cast to java.util.UUID
        at cc.mallet.types.Alphabet.readObject(Alphabet.java:352)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1158)
        at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2169)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2060)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1567)
        at java.io.ObjectInputStream.readObject(ObjectInputStream.java:427)
        at cc.mallet.types.FeatureSequence.readObject(FeatureSequence.java:281)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1158)
        at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2169)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2060)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1567)
        at java.io.ObjectInputStream.readObject(ObjectInputStream.java:427)
        at cc.mallet.types.Instance.readObject(Instance.java:228)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1158)
        at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2169)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2060)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1567)
        at java.io.ObjectInputStream.readObject(ObjectInputStream.java:427)
        at java.util.ArrayList.readObject(ArrayList.java:797)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1158)
        at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2169)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2060)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1567)
        at java.io.ObjectInputStream.readObject(ObjectInputStream.java:427)
        at cc.mallet.types.InstanceList.load(InstanceList.java:841)
        at cc.mallet.classify.tui.Csv2Vectors.main(Csv2Vectors.java:146)
Exception in thread "main" java.lang.IllegalArgumentException: Couldn't read InstanceList from file /topic_model/eef175_corpus.mallet
        at cc.mallet.types.InstanceList.load(InstanceList.java:846)
        at cc.mallet.classify.tui.Csv2Vectors.main(Csv2Vectors.java:146)
Terminated: 15

Reverting back to mallet 2.0.8 or building the commit prior to that change fixes the issue:

git clone https://github.com/mimno/Mallet.git
cd Mallet
git checkout 48f60b28b02ffae8e50447c4b159f603034514bd
ant