CQLSStableWriter example fails on 3.0rc1

CQLSSTableWriter which works with 2.2.1 does not work with 3.0rc1.
Something like https://github.com/yukim/cassandra-bulkload-example should be added to the test suite.

Exception in thread "main" java.lang.RuntimeException: java.lang.ExceptionInInitializerError
at org.apache.cassandra.io.sstable.SSTableSimpleUnsortedWriter.close(SSTableSimpleUnsortedWriter.java:136)
at org.apache.cassandra.io.sstable.CQLSSTableWriter.close(CQLSSTableWriter.java:274)
at com.metawiring.sandbox.BulkLoadExample.main(BulkLoadExample.java:160)
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:497)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)
Caused by: java.lang.ExceptionInInitializerError
at org.apache.cassandra.db.Keyspace.initCf(Keyspace.java:372)
at org.apache.cassandra.db.Keyspace.<init>(Keyspace.java:309)
at org.apache.cassandra.db.Keyspace.open(Keyspace.java:133)
at org.apache.cassandra.db.Keyspace.open(Keyspace.java:110)
at org.apache.cassandra.io.sstable.SSTableTxnWriter.create(SSTableTxnWriter.java:97)
at org.apache.cassandra.io.sstable.AbstractSSTableSimpleWriter.createWriter(AbstractSSTableSimpleWriter.java:63)
at org.apache.cassandra.io.sstable.SSTableSimpleUnsortedWriter$DiskWriter.run(SSTableSimpleUnsortedWriter.java:206)
Caused by: java.lang.NullPointerException
at org.apache.cassandra.config.DatabaseDescriptor.getFlushWriters(DatabaseDescriptor.java:1153)
at org.apache.cassandra.db.ColumnFamilyStore.<clinit>(ColumnFamilyStore.java:116)
... 7 more