public void testFilterThrowsNullPointerException7() throws Throwable {
StatefulFilter statefulFilter = new StatefulFilter();
statefulFilter.setKey((int[]) null);
try {
statefulFilter.filter(new BASE24TCPChannel(
new EuroSubFieldPackager()), new ISOMsg(), new LogEvent(
new PostPackager(), "testStatefulFilterTag"));
fail("Expected NullPointerException to be thrown");
} catch (NullPointerException ex) {
assertNull("ex.getMessage()", ex.getMessage());
}