CODEWITHSUNDEEP
groovy
Harel Farkash
Harel Farkash

Reputation: 166

Groovy error: "cannot assign value of type byte[] to variable of type byte[]"

I have code that iterates over timestamps in a video, and adds the timestamp and the thumbnail of that timestamp to a list:

timeStamps.each { timeStampMs -> //for each carousel timestamp
     Optional<byte[]> thumbnail = this.persistenceService.getThumbnail(collectionName, mediaId, timeStampMs)
     if (thumbnail.isPresent()) {
         timeThumbnailList << new TimeThumbnailPair(timeStampMs: timeStampMs, thumbnail: thumbnail.get())
     } else {
         absentTimeStamps << timeStampMs //assign to thumbnails that needs to be decoded
     }
}

TimeThumbnailPair looks like this:

@Canonical
class TimeThumbnailPair {

    Long timeStampMs

    byte[] thumbnail
}

When I try to compile my code, I get the following error:

"Error:(83, 103) Groovyc: [Static type checking] - Cannot assign value of type byte[] to variable of type byte[]"

I'm completely lost as to why this error appears (and what it even means). Thanks in advance!

Upvotes: 1

Views: 537

Answers (1)

cjstehno
cjstehno

Reputation: 13994

Add or remove a @CompileStatic on the class or method. Sometimes primitive arrays can be picky.

Upvotes: 1

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