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https://issues.apache.org/jira/browse/GROOVY-11182?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Paul King closed GROOVY-11182.
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> Primitive array Varargs Java incompatibility
> --------------------------------------------
>
> Key: GROOVY-11182
> URL: https://issues.apache.org/jira/browse/GROOVY-11182
> Project: Groovy
> Issue Type: Bug
> Affects Versions: 4.0.15
> Reporter: Steve Eady
> Assignee: Eric Milles
> Priority: Major
> Fix For: 5.0.0-beta-1
>
>
> Groovy is not parsing primitive arrays sent into a varargs parameter the same
> way it is being parsed in Java 17.0.7
> If the input value is a byte array of the string "test"...
> Groovy is slicing it up into a 2d array of dimensions [4][1]
> an array of size 4 each containing an array of size 1
> In java, the value is being slide up into a 2d array of dimensions [1][4]
> an array of size 1 containing an array of size 4.
> This was detected when trying to pass in a byte[] value into a varargs of
> (byte[]... args)
> in a Spring library.
> Here are the test cases for Groovy vs Java
> {code:groovy}
> class VarArgsTestGroovy {
> static void main(String[] args) {
> byte[] bytes = "test".bytes
> test(bytes)
> }
> static test(byte[]... byteArrays) {
> assert byteArrays.length == 4
> (0..3).each {
> assert byteArrays[it].length == 1
> }
> }
> {code}
> {code:java}
> public class VarArgsTestJava {
> public static void main(String[] args) {
> byte[] bytes = "test".getBytes();
> test(bytes);
> }
> static void test(byte[]... byteArrays) {
> assert byteArrays.length == 1;
> assert byteArrays[0].length == 4;
> }
> }
> {code}
> My current workaround is to pre-create a 2 dimensional array of size[1][value]
> and pass that into the varargs method instead of the original byte array
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