new CreatorJournalEntry("modifyDatastreamByReference", context);
entry.addArgument("pid", "demo:19");
entry.addArgument("dsId", "DS1");
entry.addArgument("altIds", new String[] {"this", "that", "another"});
entry.addArgument("dsLabel", "A different source and some AltIDs");
entry.addArgument("versionable", true);
entry.addArgument("mimeType", "text/html");
entry.addArgument("formatUri", "\n");
entry.addArgument("dsLocation",
"http://myserver.edu/mydir/aDifferentFile.html");
entry.addArgument("dsState", "A");