File saving improperly in h2 database

[latent nebula]

I am trying to save an image file in my h2 database, but when I try to read it in testing(with a get request), it returns a String, which when transformed into bytes, is not equal to the bytes of the original image, and when the bytes are written to a file the file isnt recognised as an image. code here: https://github.com/legoaggelos/CatPlace/tree/cat-pfps. I am not sure where the bug is, but I found it in the first test in https://github.com/legoaggelos/CatPlace/blob/cat-pfps/src/test/java/com/legoaggelos/catplace/CatPlaceApplicationTests.java, after some experimenting, would appreciate help

[idle rampart]

<@&1004656351647117403> please have a look, thanks.

Changed the category to Database.

<@&987246584574140416> please have a look, thanks.

[idle rampart]

@latent nebula

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[latent nebula]

        var bytes = ((String)x).getBytes();
        var actualBytes = Files.readAllBytes(Paths.get("4.jpg"));
        assertThat(actualBytes).isEqualTo(bytes);``` this is an example of code that fails

[idle rampart]

Detected code, here are some useful tools:

Formatted code

var x = documentContext.read("$.profilePicture");
var bytes = ((String) x).getBytes();
var actualBytes = Files.readAllBytes(Paths.get("4.jpg"));
assertThat(actualBytes).isEqualTo(bytes);

[latent nebula]

Expected :[47, 57, 106, 47, 52, 81, 65, 87, 82, 88, 104, 112, 90, 103, 65, 65, 84, 85, 48, 65, 75, 103, 65, 65, 65, 65, 103, 65, 65, 65, 65, 65, 65, 65, 68, 47, 50, 119, 66, 68, 65, 65, 69, 66, 65, 81, 69, 66, 65, 81, 69, 66, 65, 81, 69, 66, 65, 81, 69, 66, 65 ...

Actual :[-1, -40, -1, -31, 0, 22, 69, 120, 105, 102, 0, 0, 77, 77, 0, 42, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, -1, -37, 0, 67, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 2, 1, 1, 1, 2, ...
this is what the issue is

[latent nebula]

Base64.getDecoder().decode((String) x))
needed to decode it