Package org.apache.shiro
This package primarily exists as a root classpath distinction, but it does contain two core classes widely used
 by applications, 
SecurityUtils and
 ShiroException.- 
Class Summary Class Description SecurityUtils Accesses the currently accessibleSubjectfor the calling code depending on runtime environment. - 
Exception Summary Exception Description UnavailableSecurityManagerException Exception thrown when attempting to acquire the application'sSecurityManagerinstance, but Shiro's lookup heuristics cannot find one.