日期类型的比较运算行为不一致。

[cuiyuemin365]

    public static void main(String[] args) {
        Map<String, Object> dataMap1 = new HashMap<>();
        dataMap1.put("date1", null);
        dataMap1.put("date2", new Date());
        System.out.println("null>new Date()   ===> " + AviatorEvaluator.execute("date1>date2", dataMap1));

        Map<String, Object> dataMap2 = new HashMap<>();
        dataMap2.put("date1", new Date());
        dataMap2.put("date2", null);
        System.out.println("new Date()>null   ===> " + AviatorEvaluator.execute("date1>date2", dataMap2));
    }

null>new Date()   ===> false
Exception in thread "main" com.googlecode.aviator.exception.ExpressionRuntimeException: Compare <JavaType, null, null> with <JavaType, null, null> error
	at com.googlecode.aviator.runtime.type.AviatorJavaType.compare(AviatorJavaType.java:404)
	at Script_1573697293370_1/2052915500.execute0(Unknown Source)
	at com.googlecode.aviator.ClassExpression.execute(ClassExpression.java:73)
	at com.googlecode.aviator.AviatorEvaluatorInstance.execute(AviatorEvaluatorInstance.java:950)
	at com.googlecode.aviator.AviatorEvaluator.execute(AviatorEvaluator.java:496)
	at com.googlecode.aviator.AviatorEvaluator.execute(AviatorEvaluator.java:508)
	at com.googlecode.aviator.mydemo.Test.main(Test.java:47)
Caused by: java.lang.NullPointerException
	at java.util.Date.getMillisOf(Date.java:958)
	at java.util.Date.compareTo(Date.java:978)
	at java.util.Date.compareTo(Date.java:131)
	at com.googlecode.aviator.runtime.type.AviatorJavaType.compare(AviatorJavaType.java:402)
	... 6 more

[killme2008]

这是个bug，感谢反馈

[killme2008]

Released 4.2.6