[transaction-invoker-impl-0] ERROR org.opendaylight.ovsdb.hwvtepsouthbound.transactions.md.TransactionInvokerImpl - Failed to execute hwvtep transact command, re-submitting the transaction again
java.lang.NullPointerException: Failed to execute command
	at org.opendaylight.ovsdb.hwvtepsouthbound.TransactionInvokerImplTest.lambda$new$1(TransactionInvokerImplTest.java:63)
	at org.opendaylight.ovsdb.hwvtepsouthbound.transactions.md.TransactionInvokerImpl.executeCommand(TransactionInvokerImpl.java:122)
	at org.opendaylight.ovsdb.hwvtepsouthbound.transactions.md.TransactionInvokerImpl.run(TransactionInvokerImpl.java:101)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
	at java.base/java.lang.Thread.run(Thread.java:840)
[transaction-invoker-impl-1] ERROR org.opendaylight.ovsdb.hwvtepsouthbound.transactions.md.TransactionInvokerImpl - Failed to execute hwvtep transact command, re-submitting the transaction again
java.lang.NullPointerException: Failed to execute command
	at org.opendaylight.ovsdb.hwvtepsouthbound.TransactionInvokerImplTest.lambda$new$1(TransactionInvokerImplTest.java:63)
	at org.opendaylight.ovsdb.hwvtepsouthbound.transactions.md.TransactionInvokerImpl.executeCommand(TransactionInvokerImpl.java:122)
	at org.opendaylight.ovsdb.hwvtepsouthbound.transactions.md.TransactionInvokerImpl.run(TransactionInvokerImpl.java:101)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
	at java.base/java.lang.Thread.run(Thread.java:840)