if(fields[0] == null){
throw new IllegalArgumentException("Invalid FST configuration "
+ "line: "+line +". Param 'index={field}' is required "
+ "(syntax: 'index={field};store={field}', 'store is optional'')!");
}
fstConfigs.add(new FstConfig(fields[0], fields[1]));
}
}
}
value = config.get(FST_THREADS);
if(value instanceof Number){