set-tx-query-timeout feature depends on org.jboss.tm.TransactionTimeoutConfiguration#getTimeLeftBeforeTransactionTimeout() to get the remaining time of transaction timeout from transaction manager.

org.jboss.as.connector.services.transaction.integration.TransactionIntegrationServer passes transaction manager instance to org.jboss.jca.core.tx.jbossts.TransactionIntegrationImpl. The transaction manager instance is different between EAP 7.0.x and EAP 7.1.0 (IIUC, this change happened because of Elytron integration):

• In EAP 7.0.x, the instance is com.arjuna.ats.jbossatx.jta.TransactionManagerDelegate which implements org.jboss.tm.TransactionTimeoutConfiguration.

• In EAP 7.1.0, the instance is org.wildfly.transaction.client.ContextTransactionManager which does not implement org.jboss.tm.TransactionTimeoutConfiguration.

Therefore, set-tx-query-timeout feature does not work in EAP 7.1.0.

To fix this issue, I think org.wildfly.transaction.client.ContextTransactionManager needs to implement org.jboss.tm.TransactionTimeoutConfiguratio#getTimeLeftBeforeTransactionTimeout()