justinmclean opened a new issue, #8382:
URL: https://github.com/apache/gravitino/issues/8382
### What would you like to be improved?
In
iceberg/iceberg-common/src/main/java/org/apache/gravitino/iceberg/common/utils/IcebergHiveCachedClientPool.java,
you will encounter an NPE if you close two pools.
Here's a test to show that:
```
@Test
void testCloseMultipleInstances() throws IOException {
Configuration configuration = new Configuration();
Map<String, String> properties = Maps.newHashMap();
IcebergHiveCachedClientPool pool1 = new
IcebergHiveCachedClientPool(configuration, properties);
IcebergHiveCachedClientPool pool2 = new
IcebergHiveCachedClientPool(configuration, properties);
Assertions.assertDoesNotThrow(
() -> {
pool1.close();
pool2.close();
});
}
```
### How should we improve?
_No response_
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