When setting the conflict resolution strategy to Salience the execution order of the rules is incorrect: the rule with the lowest salience value is fired first.
The Salience conflict resolution strategy is set by defining it in the RuleBaseConfiguration:

RuleBaseConfiguration rbc = new RuleBaseConfiguration();
rbc.setConflictResolver(SalienceConflictResolver.getInstance());
RuleBaseFactory.newRuleBase(rbc);

When the rule base is created without setting the conflict resolution strategy to Salience the execution order of the rules is correct.