Failed transformation

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
android, java, kotlin
Domain
mobile-dev

Research direction

Start at Util.java:63, where the stack trace shows the transformation upload parameters are built, then follow Uploader.java:51 and the MediaManager upload path. Reproduce the Kotlin example with Cloudinary Android SDK 2.3.1 and verify that a transformation upload no longer raises ClassCastException and behaves consistently with the documentation.

Written by the indexing model from the issue text.

Description

Describe the bug in a sentence or two.

I get an java.lang.ClassCastException: com.cloudinary.Transformation cannot be cast to java.lang.String error when attempting a transformation:
val transformation = Transformation<Transformation<*>>().width(1280).crop("scale")

Issue Type (Can be multiple)

[ ] Build - Can’t install or import the SDK
[ ] Performance - Performance issues
[x] Behaviour - Functions aren’t working as expected (Such as generate URL)
[x] Documentation - Inconsistency between the docs and behaviour
[ ] Other (Specify)

Steps to reproduce

val transformation = Transformation<Transformation<*>>().width(1280)
        MediaManager.get().upload(uri)
            .option(TRANSFORMATION, transformation)
            .option(SIGNATURE, photoSignature.signature)
            .option(TIMESTAMP, photoSignature.timestamp)
            .option(PUBLIC_ID, photoSignature.publicId)
            .option(TAG, tag)
            .callback(object : UploadCallback {
                override fun onStart(requestId: String?) {
                    callback.onStart()
                }

                override fun onProgress(requestId: String?, bytes: Long, totalBytes: Long) {
                    callback.onProgress(bytes = bytes, totalBytes = totalBytes)
                }

                override fun onSuccess(requestId: String?, resultData: MutableMap<Any?, Any?>?) {
                    callback.onSuccess(resultData)
                }

                override fun onError(requestId: String?, error: ErrorInfo?) {
                    callback.onError(Throwable("CODE ${error?.code}: ${error?.description}"))
                }

                override fun onReschedule(requestId: String?, error: ErrorInfo?) {
                    callback.onError(Throwable("CODE ${error?.code}: ${error?.description}"))
                }
            })
            .dispatch()

Error screenshots or Stack Trace (if applicable)

java.lang.ClassCastException: com.cloudinary.Transformation cannot be cast to java.lang.String at com.cloudinary.Util.buildUploadParams(Util.java:63) at com.cloudinary.Uploader.buildUploadParams(Uploader.java:51) at com.cloudinary.Uploader.uploadLargeParts(Uploader.java:160) at com.cloudinary.Uploader.uploadLarge(Uploader.java:149) at com.cloudinary.android.DefaultRequestProcessor.doProcess(DefaultRequestProcessor.java:223) at com.cloudinary.android.DefaultRequestProcessor.processRequest(DefaultRequestProcessor.java:87) at com.cloudinary.android.MediaManager.processRequest(MediaManager.java:441) at com.cloudinary.android.AndroidJobStrategy$UploadJob.doWork(AndroidJobStrategy.java:163) at androidx.work.Worker$1.run(Worker.java:86) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1137) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:637) at java.lang.Thread.run(Thread.java:1012)

Build System

[ ] Maven
[x] Gradle
[ ] Other (Specify)

Is the issue reproducible only on a specific device?

[x] No
[ ] Yes (specify model + Android version + vendor build number, if applicable)

Versions and Libraries (fill in the version numbers)

Cloudinary Android SDK version 2.3.1
Android version - 33
Kotlin version - 1.8.10
JVM (of the dev environment) - 17
Gradle - 8.0

Dominant language
Java
Stars
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Forks
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No merged PRs in 30d

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  3. Fork the repository and make your change on a branch.
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