A DESCRIPTION OF THE PROBLEM :
I'm working on a Java annotation processor and encountered a NullPointerException with the following error message:

java.lang.NullPointerException: Cannot invoke "com.sun.tools.javac.code.Symbol$MethodSymbol.flags()" because "rc.accessor" is null
    at jdk.compiler/com.sun.tools.javac.comp.Lower.lambda$generateMandatedAccessors$5(Lower.java:2390)

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The code works as the Java Annotation Processor.
ACTUAL -
it returns:

java.lang.NullPointerException: Cannot invoke "com.sun.tools.javac.code.Symbol$MethodSymbol.flags()" because "rc.accessor" is null
    at jdk.compiler/com.sun.tools.javac.comp.Lower.lambda$generateMandatedAccessors$5(Lower.java:2390)

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FREQUENCY : always