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[SHIRO-762] Mark SecurityUtils.securityManager as volatile #218

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May 4, 2020
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2 changes: 1 addition & 1 deletion core/src/main/java/org/apache/shiro/SecurityUtils.java
Original file line number Diff line number Diff line change
Expand Up @@ -34,7 +34,7 @@ public abstract class SecurityUtils {
* ONLY used as a 'backup' in VM Singleton environments (that is, standalone environments), since the
* ThreadContext should always be the primary source for Subject instances when possible.
*/
private static SecurityManager securityManager;
private static volatile SecurityManager securityManager;

/**
* Returns the currently accessible {@code Subject} available to the calling code depending on
Expand Down