A DESCRIPTION OF THE PROBLEM :
The JavaDoc of this method states that "It will return false if the {@code LogRecord} is null.", but there is no null-check. Instead in the second line of the method a call is done on the log record, resulting in NPE.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Call java.util.logging.Handler#isLoggable with null argument.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
false
ACTUAL -
NullPointerException

CUSTOMER SUBMITTED WORKAROUND :
Override the method in every handler and add a null-check

FREQUENCY : always