NullPointerException for setProperties request

[exanm]

In version 2.1.1 a NullPointerException happens for the setProperties request of the ALTER VIRTUAL SCHEMA statement:

java.lang.NullPointerException
Stack trace:
com.exasol.adapter.jdbc.JdbcAdapter.getTableFilter(JdbcAdapter.java:157)
com.exasol.adapter.jdbc.JdbcAdapter.setProperties(JdbcAdapter.java:127)
com.exasol.adapter.RequestDispatcher.dispatchSetPropertiesRequestToAdapter(RequestDispatcher.java:134)
com.exasol.adapter.RequestDispatcher.processRequest(RequestDispatcher.java:75)
...

How to reproduce:

CREATE VIRTUAL SCHEMA VS1 USING ADAPTER.JDBC_ADAPTER WITH
    CONNECTION_STRING='jdbc:exa:REMOVED'
    SCHEMA_NAME='NATIVE'
    IS_LOCAL='True'
    SQL_DIALECT='EXASOL';

DROP TABLE NATIVE.T_DATETIME;
ALTER TABLE NATIVE.T ADD COLUMN D INT;
CREATE TABLE NATIVE.T_NEW(A INT);
RENAME SCHEMA NATIVE TO NATIVE_RENAMED;

ALTER VIRTUAL SCHEMA VS1 SET
    SCHEMA_NAME='NATIVE_RENAMED'
    CONNECTION_STRING='jdbc:exa:REMOVED;schema=NATIVE_RENAMED';

[AnastasiiaSergienko]

Tested with different versions. The behavior was broken in version 1.16.3:
https://github.com/exasol/virtual-schemas/releases/tag/1.16.3

I'm going to investigate the case.