@Nullable
    private Method getLambdaMethod(String methodName) {
        for (Method method : currentClass.getMethods()) {
            if (methodName.equals(method.getName())) {
                return method;
            }
        }

        return null;
    }
@ Nullable private Method getLambdaMethod ( String methodName ) { for ( Method method : currentClass . getMethods ( ) ) { if ( methodName . equals ( method . getName ( ) ) ) { return method ; } } return null ; }
finds the bootstrap method for a lambda (invokedynamic call. As findbugs doesn't support bcel 6, have to cheat a little here.

@param methodName
the lambda name
@return the method object if it exists