Postgis insert or modify feature operations throw a NULL pointer exception if a geometry is null

java.lang.NullPointerException
at org.geotools.data.postgis.attributeio.WKBEncoder.encodeWKBGeometry(WKBEncoder.java:146)
at org.geotools.data.postgis.attributeio.WKBEncoder.encodeGeometry(WKBEncoder.java:108)
at org.geotools.data.postgis.attributeio.WKBEncoder.encodeGeometryHex(WKBEncoder.java:187)
at org.geotools.data.postgis.PostgisFeatureWriter.getGeometryInsertText(PostgisFeatureWriter.java:76)
at org.geotools.data.jdbc.JDBCTextFeatureWriter.makeInsertSql(JDBCTextFeatureWriter.java:198)
at org.geotools.data.jdbc.JDBCTextFeatureWriter.doInsert(JDBCTextFeatureWriter.java:107)
at org.geotools.data.jdbc.JDBCFeatureWriter.write(JDBCFeatureWriter.java:220)
at org.geotools.data.InProcessLockingManager$1.write(InProcessLockingManager.java:331)
at org.geotools.data.jdbc.JDBCFeatureStore.addFeatures(JDBCFeatureStore.java:400)
at net.refractions.udig.project.internal.impl.UDIGFeatureStore.addFeatures(UDIGFeatureStore.java:160)
at net.refractions.udig.project.internal.commands.edit.AddFeatureCommand.run(AddFeatureCommand.java:88)
at net.refractions.udig.tools.edit.commands.CreateAndSetNewFeature.run(CreateAndSetNewFeature.java:56)
at net.refractions.udig.project.command.UndoableComposite.execute(UndoableComposite.java:81)
at net.refractions.udig.tools.edit.BehaviourCommand.execute(BehaviourCommand.java:65)
at net.refractions.udig.project.command.CommandManager$Executor.execute(CommandManager.java:393)
at net.refractions.udig.project.command.CommandManager$Executor.run(CommandManager.java:324)
at net.refractions.udig.project.command.CommandManager$Executor.run(CommandManager.java:310)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:58)