https://bz.apache.org/bugzilla/show_bug.cgi?id=61779
Bug ID: 61779
Summary: NPE in AuthConfigFactoryImpl.removeRegistration() if
AuthConfigFactoryImpl.getConfigProvider() was called
with null parameter for listener
Product: Tomcat 8
Version: 8.5.23
Hardware: PC
Status: NEW
Severity: normal
Priority: P2
Component: Catalina
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ----
AuthConfigFactoryImpl.getConfigProvider() always creates a listener wrapper,
even if the listener parameter is actually null. When after that
AuthConfigFactoryImpl.removeRegistration() is called, the listeners in all
listener wrappers for this registration are notified for the removal.
However, no check for null listener in the listener wrapper is made, therefore
if there is a null listener within a wrapper a NPE is thrown.
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