int validateVersionRequirement(String versionRequirement, String key) {
IMessageManager msgManager = getManagedForm().getMessageManager();
if(versionRequirement == null) {
String msg = UIPlugin.getLocalString("_UI_Module_version_requirement_missing");
msgManager.addMessage(key, msg, null, IMessageProvider.ERROR);
return IMessageProvider.ERROR;
}
int result = IMessageProvider.NONE;
try {
VersionRange.create(versionRequirement);