CatalogTestBase.* failed on travis

[Haibo Sun]

Hi, guys


I noticed that all of the Travis tests reported a number of failures as 
following. Is anyone working on this problem? 


______________________ CatalogTestBase.test_table_exists _______________________

self = <pyflink.table.tests.test_catalog.CatalogTestBase 
testMethod=test_table_exists>

    def test_table_exists(self):
>       self.catalog.create_database(self.db1, self.create_db(), False)

pyflink/table/tests/test_catalog.py:491: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

    @staticmethod
    def create_db():
        gateway = get_gateway()
>       j_database = gateway.jvm.GenericCatalogDatabase({"k1": "v1"}, 
> CatalogTestBase.test_comment)
E       TypeError: 'JavaPackage' object is not callable


pyflink/table/tests/test_catalog.py:78: TypeError




Best,
Haibo