org.apache.kafka.connect.errors.ConnectException: Unable to connect to the MySQL database at localhost:3306 with user 'snapper': null
	at io.debezium.connector.mysql.BinlogReader.doStart(BinlogReader.java:445)
	at io.debezium.connector.mysql.AbstractReader.start(AbstractReader.java:116)
	at io.debezium.connector.mysql.ChainedReader.startNextReader(ChainedReader.java:206)
	at io.debezium.connector.mysql.ChainedReader.start(ChainedReader.java:103)
	at io.debezium.connector.mysql.MySqlConnectorTask.start(MySqlConnectorTask.java:279)
	at io.debezium.connector.common.BaseSourceTask.start(BaseSourceTask.java:101)
	at io.debezium.embedded.EmbeddedEngine.run(EmbeddedEngine.java:756)
	at io.debezium.embedded.AbstractConnectorTest.lambda$start$3(AbstractConnectorTest.java:331)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1445)
	at java.util.HashMap$KeyIterator.next(HashMap.java:1469)
	at io.debezium.connector.mysql.BinlogReader.doStart(BinlogReader.java:417)
	... 10 more