kaister3 edited a comment on issue #2349:
URL:
https://github.com/apache/servicecomb-java-chassis/issues/2349#issuecomment-817739409
可以用instanceof来判断是string还是list。
```java
@SuppressWarnings("unchecked")
public List<String> getFileSources() {
Object property = finalConfig.getProperty(FILE_SOURCE);
if (property instanceof String) {
List<String> result = new ArrayList<>();
result.add((String) property);
return result;
} else if (property instanceof List) {
return (List<String>) property;
}
return new ArrayList<>();
}
```
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