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https://issues.apache.org/jira/browse/IGNITE-24736?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17937187#comment-17937187
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Andrey Mashenkov commented on IGNITE-24736:
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The reason is `IgniteUtils.randomString` function skips different characters in
Java 17.
Actually, the function implementation is invalid because we pass `char` to
function that accepts `int` code point.
> IgniteUnsafeData writeUTF / readUTF depends on Java version
> -----------------------------------------------------------
>
> Key: IGNITE-24736
> URL: https://issues.apache.org/jira/browse/IGNITE-24736
> Project: Ignite
> Issue Type: Improvement
> Reporter: Maksim Zhuravkov
> Assignee: Andrey Mashenkov
> Priority: Major
> Labels: ignite-3
>
> Reproducer run `write` with JDK 11, run `read` against JDK 11 - strings match.
> run `read` against JDK 17, strings won't match.
> {code:java}
> public class RandomStringTest {
> private final Random random = new Random();
> @BeforeEach
> public void before() {
> random.setSeed(111);
> }
> @Test
> public void write() throws IOException {
> // Write JDK 11
> String s = IgniteTestUtils.randomString(random, 512);
> try (IgniteUnsafeDataOutput os = new IgniteUnsafeDataOutput(111)) {
> os.writeUTF(s);
> byte[] array = os.array();
> System.err.println(Arrays.toString(array));
> Path dir = Paths.get(".").toAbsolutePath();
> Files.write(dir.resolve("string.bin"), array);
> }
> }
> @Test
> public void read() throws IOException {
> // Read JDK 17
> String s = IgniteTestUtils.randomString(random, 512);
> Path dir = Paths.get(".").toAbsolutePath();
> byte[] bytes = Files.readAllBytes(dir.resolve("string.bin"));
> try (IgniteUnsafeDataInput os = new IgniteUnsafeDataInput(bytes)) {
> String s1 = os.readUTF();
> assertEquals(s, s1);
> }
> }
> }
> {code}
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