Hi, We have a strange issue with the com.google.gwt.i18n.client.Messages.AlternateMessage in UIMessages.java. We have defined some alternate messages using @Messages.Select with Enums. But its doesn't work any more. We have following messages in the UIMessages.java. @Messages.AlternateMessage(value = { "UNKNOWN" , "None" , "INTERVAL" , "Minute" , "HOURLY" , "Hourly" , "DAILY" , "Daily" , "WEEKLY" , "Weekly" , "MONTHLY" , "Monthly" }) String recurrenceType((a)Messages.Select GlusterVolumeSnapshotScheduleRecurrence recurrence); @Messages.AlternateMessage(value = { "BYTES" , "{0} B" , "KiB" , "{0} KiB" , "MiB" , "{0} MiB" , "GiB" , "{0} GiB" , "TiB" , "{0} TiB" }) String sizeUnitString(String size, @Messages.Select SizeConverter.SizeUnit sizeUnit); But the generated UIMessages_.java doesn't use any of the enum conditions. public java.lang.String recurrenceType(org.ovirt.engine.core.common.businessentities.gluster.GlusterVolumeSnapshotScheduleRecurrence arg0) { java.lang.String returnVal = null; int arg0_ordinal = -1; if (arg0 != null) { arg0_ordinal = arg0.ordinal(); } if (returnVal != null) { return returnVal; } return "Incorrect enum"; } public java.lang.String sizeUnitString(java.lang.String arg0,org.ovirt.engine.core.common.utils.SizeConverter.SizeUnit arg1) { java.lang.String returnVal = null; int arg1_ordinal = -1; if (arg1 != null) { arg1_ordinal = arg1.ordinal(); } if (returnVal != null) { return returnVal; } return arg0 + " TiB"; } It used to work earlier. Is there any known issue in the current GWT Version? or Am I missing something?. Regards, Ramesh