private static void runStatement(final String statement, final KsqlRestClient restClient) { final RestResponse response = restClient.makeKsqlRequest(statement); Assert.assertThat(response.isSuccessful(), is(true)); final KsqlEntityList entityList = ((KsqlEntityList) response.get()); Assert.assertThat(entityList.size(), equalTo(1)); Assert.assertThat(entityList.get(0), instanceOf(CommandStatusEntity.class)); final CommandStatusEntity entity = (CommandStatusEntity) entityList.get(0); final CommandStatus status = entity.getCommandStatus(); Assert.assertThat(status, not(CommandStatus.Status.ERROR)); if (status.getStatus() != Status.SUCCESS) { assertThatEventually( "", () -> { final RestResponse statusResponse = restClient .makeStatusRequest(entity.getCommandId().toString()); Assert.assertThat(statusResponse.isSuccessful(), is(true)); Assert.assertThat(statusResponse.get(), instanceOf(CommandStatus.class)); return ((CommandStatus) statusResponse.get()).getStatus(); }, anyOf( is(CommandStatus.Status.SUCCESS), is(CommandStatus.Status.TERMINATED), is(CommandStatus.Status.ERROR)), 120, TimeUnit.SECONDS ); } }