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Changing Access modifier using reflection in kotlin


Changing Access modifier using reflection in kotlin

By : csuprakash
Date : November 21 2020, 04:01 AM
seems to work fine Immediately after posting the question I found the solution. The bitwise operators that are being used and their java representations are AND ($) and bitwise compliment (~).
In kotlin the AND bitwise operator is an infix function of the Int class and. Similarly the bitwise compliment operator is also a function, inv, on the Int class.
code :
val field = clazz.getDeclaredField("someField")
field.isAccessible = true

val modifers = field.javaClass.getDeclaredField("modifiers")
modifers.isAccessible = true
modifers.setInt(field, field.modifiers and Modifier.FINAL.inv())


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Detect access modifier type on a property using Reflection

Detect access modifier type on a property using Reflection


By : Srinath S
Date : March 29 2020, 07:55 AM
I wish this helpful for you Since properties are just syntactic sugar over a pair of get/set methods, there's no such thing as "accessibility" of a property reflection-wise. Rather, you'll have to find out accessibility levels of get and set methods separately. To that end, retrieve appropriate MethodInfo objects with GetGetMethod and GetSetMethod methods, and from there are various IsPrivate, IsPublic and other methods and properties.
Changing method access modifier with reflection

Changing method access modifier with reflection


By : Manvendra Kumar
Date : March 29 2020, 07:55 AM
this will help You can't alter whether a method is virtual or not by using reflection. Actually, you can't alter anything at all with reflection, it's a read-only interface to your type structure (as it should be).
Your best option is to create an interface for the class, update references to it to use the interface and build the proxy off the interface. Then your class doesn't have to have virtual methods but your proxy will implement the interface and the interceptor will work.
Kotlin Reflection: How to know if a Kotlin class is marked with "internal" visibility modifier

Kotlin Reflection: How to know if a Kotlin class is marked with "internal" visibility modifier


By : user1996207
Date : March 29 2020, 07:55 AM
it fixes the issue Kotlin reflection is not applicable during annotation processing. Kotlin reflection is for inspecting your code at runtime. However there is a way to parse the metadata out of Kotlin class files, it's called kotlinx-metadata-jvm.
To use this in your annotation processor, you'll have to obtain the AnnotationMirror of the kotlin.Metadata annotation. From that mirror, obtain the annotation values and use them to construct the KotlinClassHeader as you can see in the examples for kotlinx-metadata-jvm. Once you are there you can use kotlinx-metadata-jvm to extract the flags for your class.
How to find the access modifier of a member using java reflection

How to find the access modifier of a member using java reflection


By : jeaneen gauthier
Date : March 29 2020, 07:55 AM
wish of those help If you have a class (in the code below Vlucht ) then you can use the method getDeclaredFields()... then every field instance can invoke the method getModifiers which are explainted in the table below..
Reflection API has been the same since jdk1.5 so java8 is not relevant for reflection but more for accessing the array of fields using streams or similar..
Why can't we use protected access modifier in Singleton class (object) for Kotlin

Why can't we use protected access modifier in Singleton class (object) for Kotlin


By : Cree
Date : September 04 2020, 08:00 PM
wish help you to fix your issue In Kotlin you cannot inherit from a singleton object, that's why protected modifier is useless, since protected modifier opens functions/properties for this class and subclasses only.
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