@rajinisivaram Before I review, is it possible simply to mark the LoginModule as OPTIONAL in the case where it is one of multiple login modules on the broker side but it is not used for inter-broker communication? The Javadoc (https://docs.oracle.com/javase/7/docs/api/javax/security/auth/spi/LoginModule.html#commit()) says this means the module is ignored, and I confirmed in the debugger that it is in fact the case (see, for example, https://github.com/frohoff/jdk8u-dev-jdk/blob/master/src/share/classes/javax/security/auth/login/LoginContext.java#L779).
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