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[Source] class xx cannot access a member of class xx with modifiers "private"

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Posted on 5/28/2021 1:45:40 PM | | | |
Java reflection gets the field value, and the error is as follows:



Exception in thread "main" java.lang.IllegalAccessException: class demo. Test1 cannot access a member of class demo. Test1$User with modifiers "private"
        at java.base/jdk.internal.reflect.Reflection.newIllegalAccessException(Reflection.java:385)
        at java.base/java.lang.reflect.AccessibleObject.checkAccess(AccessibleObject.java:693)
        at java.base/java.lang.reflect.Field.checkAccess(Field.java:1096)
        at java.base/java.lang.reflect.Field.get(Field.java:417)
        at demo. Test1.main(Test1.java:13)
solution

When reflecting a private member variable of an operation class, you need to set the field to be accessible via field.setAccessible(true).



Code:








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