开源GIS-geotool问题解决：to have locked the url but it does not hold the lock for the URL

检查

FeatureWriter<SimpleFeatureType, SimpleFeature> featureWriter = dataStore.getFeatureWriter(dataStore.getTypeNames()[0], Transaction.AUTO_COMMIT);

FeatureIterator<SimpleFeature> iterator = featureCollection.features();
两个对象调用后是否关闭：

featureWriter.close();

iterator.close();