java.sql.SQLException: column homework_id is not unique

[GoogleCodeExporter]

~/mdb-sqlite-1.0.2$ java -jar dist/mdb-sqlite.jar ../homework.mdb 
../homework.sdb
JarClassLoader: Warning: Unable to load native library: 
java.lang.NullPointerException
Exception in thread "main" java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:616)
    at com.simontuffs.onejar.Boot.run(Boot.java:306)
    at com.simontuffs.onejar.Boot.main(Boot.java:159)
Caused by: java.sql.SQLException: column homework_id is not unique
    at org.sqlite.DB.execute(DB.java:275)
    at org.sqlite.DB.executeUpdate(DB.java:281)
    at org.sqlite.PrepStmt.executeUpdate(PrepStmt.java:77)
    at com.plausiblelabs.mdb.AccessExporter.populateTable(Unknown Source)
    at com.plausiblelabs.mdb.AccessExporter.populateTables(Unknown Source)
    at com.plausiblelabs.mdb.AccessExporter.export(Unknown Source)
    at com.plausiblelabs.mdb.Main.main(Unknown Source)
    ... 6 more


What version of the product are you using? On what operating system?
$ java -version
java version "1.6.0_20"
OpenJDK Runtime Environment (IcedTea6 1.9.2) (6b20-1.9.2-0ubuntu1~10.04.1)
OpenJDK Client VM (build 19.0-b09, mixed mode, sharing)

mdb-sqlite version: 1.0.2

Please provide any additional information below.

Original issue reported on code.google.com by roy...@gmail.com on 10 Dec 2010 at 3:07