相关疑难解决方法(0)

在Java 9上运行应用程序时,在各种情况下都会发生此异常.某些库和框架(Spring,Hibernate,JAXB)特别容易出现这种情况.这是Javassist的一个例子:

java.lang.reflect.InaccessibleObjectException: Unable to make protected final java.lang.Class java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain) throws java.lang.ClassFormatError accessible: module java.base does not "opens java.lang" to unnamed module @1941a8ff
    at java.base/jdk.internal.reflect.Reflection.throwInaccessibleObjectException(Reflection.java:427)
    at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:201)
    at java.base/java.lang.reflect.Method.checkCanSetAccessible(Method.java:192)
    at java.base/java.lang.reflect.Method.setAccessible(Method.java:186)
    at javassist.util.proxy.SecurityActions.setAccessible(SecurityActions.java:102)
    at javassist.util.proxy.FactoryHelper.toClass2(FactoryHelper.java:180)
    at javassist.util.proxy.FactoryHelper.toClass(FactoryHelper.java:163)
    at javassist.util.proxy.ProxyFactory.createClass3(ProxyFactory.java:501)
    at javassist.util.proxy.ProxyFactory.createClass2(ProxyFactory.java:486)
    at javassist.util.proxy.ProxyFactory.createClass1(ProxyFactory.java:422)
    at javassist.util.proxy.ProxyFactory.createClass(ProxyFactory.java:394)

消息说:

无法使受保护的最终java.lang.Class java.lang.ClassLoader.defineClass(java.lang.String,byte [],int,int,java.security.ProtectionDomain)抛出java.lang.ClassFormatError可访问:module java.base没有"打开java.lang"到未命名的模块@ 1941a8ff

可以做些什么来避免异常并使程序成功运行？

我正在尝试创建一种方法，该方法使用 Json 数据和 jackson 库来获取对象列表。如果我运行我的代码，我会收到错误：

java.lang.reflect.InaccessibleObjectException：无法使字段私有final int java.time.LocalDate.year可访问：模块java.base不会“打开java.time”到未命名模块@5c90e579

即使我的代码中有 JodaModul，为什么它会给我一个关于 LocalDate 的错误？

public static List<Tweet> getTweetsFile() throws Exception{

            ObjectMapper mapper = new ObjectMapper().
                    registerModule(new JodaModule()).
                    configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
            
            File path = new File ("C:/Users/PC/eclipse-workspace/hw4/tw.json");

            List<Tweet> myObjects3 =  Arrays.asList(mapper.readValue(path, Tweet.class));
    
            return myObjects3;
    }

它在我的文件中的样子：

[{"date":"2001-12-28","tweetNumber":1,"country":"England","comments":11,"message":"I like to watch anime and reading books","retweets":3,"username":"Isabelle","likes":55},{"date":"2003-05-11","tweetNumber":2,"country":"France","comments":25,"message":"I'm Viatnamese, but I live in France","retweets":30,"username":"Vin","likes":110}..

它的顺序不正确，就像我的对象在其构造函数中的顺序一样，这可能是原因吗？