Error querying database. Cause: java.lang.reflect.InaccessibleObjectException:

本文介绍: 最近开发过程中，居然碰到了一个Arrays.a sList的错，怎么个场景呢？传参一个用固定符号拼接的字符串，需要转成集合然后再myBat is里in 判断。然后就报错了。

最近开发过程中，居然碰到了一个Arrays.asList的错，怎么个场景呢？传参一个用固定符号拼接的字符串，需要转成集合然后再myBatis里in 判断。然后就报错了。

shortDetailUrlList = Arrays.asList(params.getShortDetailUrl().split("-"));

&lt;if test="shortDetailUrlList != null and shortDetailUrlList.size() &gt; 0"&gt;
            and tcp.short_url in
            <foreach item="shortDetailUrl" collection="shortDetailUrlList" open="(" separator="," close=")"
                     index="index"&gt;
                #{shortDetailUrl}
            </foreach&gt;
        </if&gt;

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: 
### Error querying database.  Cause: java.lang.reflect.InaccessibleObjectException: Unable to make public int java.util.Arrays$ArrayList.size() accessible: module java.base does not "opens java.util" to unnamed module @65e579dc
### Cause: java.lang.reflect.InaccessibleObjectException: Unable to make public int java.util.Arrays$ArrayList.size() accessible: module java.base does not "opens java.util" to unnamed module @65e579dc
	at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:96)
	at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:441)
	at jdk.proxy2/jdk.proxy2.$Proxy103.selectList(Unknown Source)
	at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:224)
	at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:147)
	at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:80)
	at org.apache.ibatis.binding.MapperProxy$PlainMethodInvoker.invoke(MapperProxy.java:145)
	at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:86)
	at jdk.proxy2/jdk.proxy2.$Proxy152.getConstructInfoByReceiveId(Unknown Source)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
	at java.base/java.lang.reflect.Method.invoke(Method.java:577)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
	at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:137)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215)
	at jdk.proxy2/jdk.proxy2.$Proxy153.getConstructInfoByReceiveId(Unknown Source)
	at com.meta.image.admin.service.impl.ReportBaseServiceImpl.getReportConstructInfo(ReportBaseServiceImpl.java:389)
	at com.meta.image.admin.controller.ReportBaseV2Controller.getReportConstructInfo(ReportBaseV2Controller.java:75)
	at com.meta.image.admin.controller.ReportBaseV2Controller$$FastClassBySpringCGLIB$$b659f1a1.invoke(<generated>)
	at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:783)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:753)
	at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:89)

根据错误日志可以晓得：数据库报错了，然后还是反射的错。错误的根源就是：

Unable to make public int java.util.Arrays$ArrayList.size() accessible

那这错误的根源到底是什么呢？那还得从Array.asList分析入手啊。。。

一般我们字符串切割，很容易想到额就是它了，固定符号分割，获取一个集合列表。

	- 该方法适用于对象型数据的数组（String、Integer…）
	- 该方法不建议使用于基本数据类型的数组（byte,short,int,long,float,double,boolean）
	- 该方法将数组与List列表链接起来：当更新其一个时，另一个自动更新
	- 不支持add()、remove()、clear()等方法

当你向这个List添加或删除一个元素时（例如 list.add(“d”);）程序就会抛出异尝（java.lang.UnsupportedOperationException）。

public static <T> List<T> asList(T... a) {
        return new ArrayList<>(a);
    }

    /**
     * @serial include
     */
    private static class ArrayList<E> extends AbstractList<E>
        implements RandomAccess, java.io.Serializable
    {
        private static final long serialVersionUID = -2764017481108945198L;
        private final E[] a;

        ArrayList(E[] array) {
            a = Objects.requireNonNull(array);
        }