**Build scan:**
https://gradle-enterprise.elastic.co/s/piyf2ga5fnjjg/tests/:modules:repository-gcs:test/org.elasticsearch.repositories.gcs.GoogleCloudStorageClientSettingsTests/testLoadsProxySettings

**Reproduction line:**
```
./gradlew ':modules:repository-gcs:test' --tests "org.elasticsearch.repositories.gcs.GoogleCloudStorageClientSettingsTests.testLoadsProxySettings" -Dtests.seed=147C59CC808694D0 -Dtests.locale=mk -Dtests.timezone=America/Cordoba -Druntime.java=17
```

**Applicable branches:**
main

**Reproduces locally?:**
Yes

**Failure history:**
https://gradle-enterprise.elastic.co/scans/tests?tests.container=org.elasticsearch.repositories.gcs.GoogleCloudStorageClientSettingsTests&tests.test=testLoadsProxySettings

**Failure excerpt:**
```
java.lang.IllegalArgumentException: port out of range:65536

  at __randomizedtesting.SeedInfo.seed([147C59CC808694D0:D0F78F252FEAAD7A]:0)
  at java.net.InetSocketAddress.checkPort(InetSocketAddress.java:152)
  at java.net.InetSocketAddress.<init>(InetSocketAddress.java:197)
  at org.elasticsearch.repositories.gcs.GoogleCloudStorageClientSettingsTests.testLoadsProxySettings(GoogleCloudStorageClientSettingsTests.java:135)
  at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:-2)
  at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
  at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:568)
  at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1758)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:946)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:982)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:996)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at org.apache.lucene.tests.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:48)
  at org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
  at org.apache.lucene.tests.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:45)
  at org.apache.lucene.tests.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
  at org.apache.lucene.tests.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:390)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:843)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:490)
  at com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:955)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:840)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:891)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:902)
  at org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at org.apache.lucene.tests.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:38)
  at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
  at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  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)

```
modules/repository-gcs/src/test/java/org/elasticsearch/repositories/gcs/GoogleCloudStorageClientSettingsTests.java
new URI(""),
            proxy
        );
        assertEquals(proxy, googleCloudStorageClientSettings.getProxy());
    }
    public void testRefreshCredentialsAccessTokenWithProxy() throws Exception {
        String clientName = randomAlphaOfLength(5).toLowerCase(Locale.ROOT);
        var secureSettings = new MockSecureSettings();
        secureSettings.setFile(
            CREDENTIALS_FILE_SETTING.getConcreteSettingForNamespace(clientName).getKey(),
            Strings.format(
                """
                    {
                      "type": "service_account",
                      "project_id": "project_id_%s",
                      "private_key_id": "private_key_id_%s",
                      "private_key": "-----BEGIN PRIVATE KEY-----\\n%s\\n-----END PRIVATE KEY-----\\n",
                      "client_email": "%s",
                      "client_id": "id_%s",
                      "token_uri": "%s"
                    }""",
                clientName,
                clientName,
                Base64.getEncoder().encodeToString(KeyPairGenerator.getInstance("RSA").generateKeyPair().getPrivate().getEncoded()),
                clientName,
                clientName,
                URI.create("http://oauth2.googleapis.com/oauth2/token")
            ).getBytes(StandardCharsets.UTF_8)
        );
        var settings = Settings.builder().setSecureSettings(secureSettings).build();