Looks like https://github.com/elastic/elasticsearch/issues/86382 but that should have been fixed in May.

**Build scan:**
https://gradle-enterprise.elastic.co/s/xb7cxwzdk6es6/tests/:libs:elasticsearch-core:test/org.elasticsearch.core.internal.provider.EmbeddedImplClassLoaderTests/classMethod

**Reproduction line:**
`null`

**Applicable branches:**
main

**Reproduces locally?:**
Didn't try

**Failure history:**
https://gradle-enterprise.elastic.co/scans/tests?tests.container=org.elasticsearch.core.internal.provider.EmbeddedImplClassLoaderTests&tests.test=classMethod

**Failure excerpt:**
```
java.io.IOException: Could not remove the following files (in the order of attempts):
   C:\Users\jenkins\workspace\platform-support\253\libs\core\build\testrun\test\temp\org.elasticsearch.core.internal.provider.EmbeddedImplClassLoaderTests_E8BB9E0290B7F7A7-001\testResourcesParentNonPkgName-001\parent.jar: java.nio.file.FileSystemException: C:\Users\jenkins\workspace\platform-support\253\libs\core\build\testrun\test\temp\org.elasticsearch.core.internal.provider.EmbeddedImplClassLoaderTests_E8BB9E0290B7F7A7-001\testResourcesParentNonPkgName-001\parent.jar: The process cannot access the file because it is being used by another process
   C:\Users\jenkins\workspace\platform-support\253\libs\core\build\testrun\test\temp\org.elasticsearch.core.internal.provider.EmbeddedImplClassLoaderTests_E8BB9E0290B7F7A7-001\testResourcesParentNonPkgName-001: java.nio.file.DirectoryNotEmptyException: C:\Users\jenkins\workspace\platform-support\253\libs\core\build\testrun\test\temp\org.elasticsearch.core.internal.provider.EmbeddedImplClassLoaderTests_E8BB9E0290B7F7A7-001\testResourcesParentNonPkgName-001
   C:\Users\jenkins\workspace\platform-support\253\libs\core\build\testrun\test\temp\org.elasticsearch.core.internal.provider.EmbeddedImplClassLoaderTests_E8BB9E0290B7F7A7-001\testResourcesParentJavaPkgName-001\parent.jar: java.nio.file.FileSystemException: C:\Users\jenkins\workspace\platform-support\253\libs\core\build\testrun\test\temp\org.elasticsearch.core.internal.provider.EmbeddedImplClassLoaderTests_E8BB9E0290B7F7A7-001\testResourcesParentJavaPkgName-001\parent.jar: The process cannot access the file because it is being used by another process
   C:\Users\jenkins\workspace\platform-support\253\libs\core\build\testrun\test\temp\org.elasticsearch.core.internal.provider.EmbeddedImplClassLoaderTests_E8BB9E0290B7F7A7-001\testResourcesParentJavaPkgName-001: java.nio.file.DirectoryNotEmptyException: C:\Users\jenkins\workspace\platform-support\253\libs\core\build\testrun\test\temp\org.elasticsearch.core.internal.provider.EmbeddedImplClassLoaderTests_E8BB9E0290B7F7A7-001\testResourcesParentJavaPkgName-001
   C:\Users\jenkins\workspace\platform-support\253\libs\core\build\testrun\test\temp\org.elasticsearch.core.internal.provider.EmbeddedImplClassLoaderTests_E8BB9E0290B7F7A7-001: java.nio.file.DirectoryNotEmptyException: C:\Users\jenkins\workspace\platform-support\253\libs\core\build\testrun\test\temp\org.elasticsearch.core.internal.provider.EmbeddedImplClassLoaderTests_E8BB9E0290B7F7A7-001

  at __randomizedtesting.SeedInfo.seed([E8BB9E0290B7F7A7]:0)
  at org.apache.lucene.util.IOUtils.rm(IOUtils.java:341)
  at org.apache.lucene.tests.util.TestRuleTemporaryFilesCleanup.afterAlways(TestRuleTemporaryFilesCleanup.java:209)
  at com.carrotsearch.randomizedtesting.rules.TestRuleAdapter$1.afterAlways(TestRuleAdapter.java:31)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:43)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at org.apache.lucene.tests.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
  at org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
  at org.apache.lucene.tests.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
  at org.apache.lucene.tests.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
  at org.apache.lucene.tests.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:47)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:390)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:850)
  at java.lang.Thread.run(Thread.java:833)

```
libs/core/src/test/java/org/elasticsearch/core/internal/provider/EmbeddedImplClassLoaderTests.java
JarUtils.createJarWithEntriesUTF(outerJar, jarEntries);
                URLClassLoader parent = URLClassLoader.newInstance(
                    new URL[] { outerJar.toUri().toURL() },
                    EmbeddedImplClassLoaderTests.class.getClassLoader()
                );
                closeables.add(parent);
                embedLoader = EmbeddedImplClassLoader.getInstance(parent, "res");
            }
            
            String expectedURLSuffix = resourcePath;
            if (enableMulti) {
                expectedURLSuffix = "META-INF/versions/" + expectedVersion + "/" + resourcePath;
            }
            
            URL url1 = urlcLoader.getResource(resourcePath);
            assertThat(url1.toString(), endsWith("!/" + expectedURLSuffix));
            URL url2 = embedLoader.getResource(resourcePath);
            assertThat(url2.toString(), endsWith("impl.jar!/IMPL-JARS/res/res-impl.jar/" + expectedURLSuffix));
            assertThat(suffix(url2), endsWith(suffix(url1)));
            
            var urls1 = Collections.list(urlcLoader.getResources(resourcePath)).stream().map(URL::toString).toList();
            var urls2 = Collections.list(embedLoader.getResources(resourcePath)).stream().map(URL::toString).toList();
            assertThat("urls1=%s, urls2=%s".formatted(urls1, urls2), urls2, hasSize(1));
            assertThat(urls1.get(0), endsWith("!/" + expectedURLSuffix));
            assertThat(urls2.get(0), endsWith("impl.jar!/IMPL-JARS/res/res-impl.jar/" + expectedURLSuffix));
            
            try (var is = embedLoader.getResourceAsStream(resourcePath)) {
                assertThat(new String(is.readAllBytes(), UTF_8), is("Hello World" + expectedVersion));
            }
        } finally {