[jboss-jira] [JBoss JIRA] (ELY-1678) Avoid NPE in AcmeClientSpi#checkContentType() when the content type is null and try to fix intermittent failures in AcmeClientSpiTest

Avoid NPE in AcmeClientSpi#checkContentType() when the content type is null and try to fix intermittent failures in AcmeClientSpiTest ------------------------------------------------------------------------------------------------------------------------------------- Key: ELY-1678 URL: https://issues.jboss.org/browse/ELY-1678 Project: WildFly Elytron Issue Type: Task Components: Testsuite Reporter: Farah Juma Assignee: Farah Juma Priority: Major Fix For: 1.6.2.Final, 1.7.0.CR2