jdk_nio_2 FAILED in Test_openjdk11_hs_extended.openjdk_arm_linux_testList_2

**Test Info**
Test Name: jdk_nio_2
Test Duration: 4 min 43 sec
Machine: test-docker-ubuntu2004-armv7l-2
TRSS link for the test output: https://trss.adoptium.net/output/test?id=616f517bc6182d02178947bc

**Build Info**
Build Name: Test_openjdk11_hs_extended.openjdk_arm_linux_testList_2
Jenkins Build start time: Oct 19 2021, 05:26 pm
Jenkins Build URL: https://ci.adoptopenjdk.net/job/Test_openjdk11_hs_extended.openjdk_arm_linux_testList_2/11/
TRSS link for the build: https://trss.adoptium.net/allTestsInfo?buildId=616f504fc6182d021789425d

**Java Version**
openjdk version "11.0.13" 2021-10-19
OpenJDK Runtime Environment Temurin-11.0.13+8 (build 11.0.13+8)
OpenJDK Server VM Temurin-11.0.13+8 (build 11.0.13+8, mixed mode)

**This test has been failed 3 times since Oct 09 2021, 01:38 pm**
**Java Version when the issue first seen**
openjdk version "11.0.13" 2021-10-19
OpenJDK Runtime Environment Temurin-11.0.13+7 (build 11.0.13+7)
OpenJDK Server VM Temurin-11.0.13+7 (build 11.0.13+7, mixed mode)
Jenkins Build URL: https://ci.adoptopenjdk.net/job/Test_openjdk11_hs_extended.openjdk_arm_linux_testList_2/9/

The test failed on machine test-docker-ubuntu2004-armv7l-2 1 times
The test failed on machine test-docker-ubuntu2004-armv7l-3 1 times
The test failed on machine test-docker-ubuntu2004-armv7l-1 1 times

[Rerun in Grinder](https://ci.adoptopenjdk.net/job/Grinder/parambuild/?SDK_RESOURCE=upstream&TARGET=jdk_nio_2&TEST_FLAG=&UPSTREAM_TEST_JOB_NAME=Test_openjdk11_hs_extended.openjdk_arm_linux&DOCKER_REQUIRED=false&ACTIVE_NODE_TIMEOUT=0&VENDOR_TEST_DIRS=&EXTRA_DOCKER_ARGS=&TKG_OWNER_BRANCH=AdoptOpenJDK%3Amaster&TEST_PARALLELIZATION_PARAMS=&OPENJ9_SYSTEMTEST_OWNER_BRANCH=eclipse%3Amaster&PLATFORM=arm_linux&GENERATE_JOBS=false&KEEP_REPORTDIR=true&PERSONAL_BUILD=false&ADOPTOPENJDK_REPO=https%3A%2F%2Fgithub.com%2FAdoptOpenJDK%2Fopenjdk-tests.git&LABEL=&TEST_OPTIONS_PARAMS=&EXTRA_OPTIONS=&CUSTOMIZED_SDK_URL=&BUILD_IDENTIFIER=&NON_AQA_TEST_REPOS_HELP_TEXT=&ADOPTOPENJDK_BRANCH=master&LIGHT_WEIGHT_CHECKOUT=true&NON_AQA_TEST_REPOS=&ARTIFACTORY_SERVER=&TEST_REPO_PARAMS=&TEST_SELECTION_PARAMS=&TEST_PARALLELIZATION_PARAMS_HELP_TEXT=&JDK_SELECTION_PARAMS=&KEEP_WORKSPACE=false&USER_CREDENTIALS_ID=&JDK_VERSION=11&ITERATIONS=1&VENDOR_TEST_REPOS=&JDK_REPO=https%3A%2F%2Fgithub.com%2Fadoptium%2Fjdk11u&PLATFORM_AND_MACHINE_HELP_TEXT=&RELEASE_TAG=jdk-11.0.13%2B8_adopt&OPENJ9_BRANCH=master&OPENJ9_SHA=&JCK_GIT_REPO=&VENDOR_TEST_BRANCHES=&UPSTREAM_JOB_NAME=build-scripts%2Fjobs%2Fjdk11u%2Fjdk11u-linux-arm-hotspot&OPENJ9_REPO=https%3A%2F%2Fgithub.com%2Feclipse%2Fopenj9.git&CLOUD_PROVIDER=&PLATFORM_AND_MACHINE=&CUSTOM_TARGET=&VENDOR_TEST_SHAS=&JDK_BRANCH=jdk-11.0.13%2B8_adopt&LABEL_ADDITION=&ARTIFACTORY_REPO=&ARTIFACTORY_ROOT_DIR=&POST_RUN_PARAMS_HELP_TEXT=&UPSTREAM_TEST_JOB_NUMBER=17&DOCKERIMAGE_TAG=&JDK_SELECTION_PARAMS_HELP_TEXT=&JDK_IMPL=hotspot&SSH_AGENT_CREDENTIAL=&AUTO_DETECT=true&TKG_SHA=&TEST_SELECTION_PARAMS_HELP_TEXT=&ADOPTOPENJDK_SYSTEMTEST_OWNER_BRANCH=adoptium%3Amaster&CUSTOMIZED_SDK_URL_CREDENTIAL_ID=&NUM_MACHINES=&OPENJDK_SHA=&BUILD_LIST=openjdk&UPSTREAM_JOB_NUMBER=878&STF_OWNER_BRANCH=adoptium%3Amaster&TEST_REPO_PARAMS_HELP_TEXT=&POST_RUN_PARAMS=&TIME_LIMIT=10&TEST_OPTIONS_PARAMS_HELP_TEXT=&JVM_OPTIONS=&PARALLEL=None)

Error message:
```
Stacktrace
Execution failed: `main' threw exception: java.lang.AssertionError: SecureDirectoryStream not supported.
Standard Output

Standard Error
java.lang.AssertionError: SecureDirectoryStream not supported.
at SecureDS.main(SecureDS.java:49)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:298)
at java.base/java.lang.Thread.run(Thread.java:829)
```
Test passed on jdk17 arm.

Test code:

```
DirectoryStream stream = newDirectoryStream(dir);
stream.close();
if (!(stream instanceof SecureDirectoryStream)) {
if (System.getProperty("os.name").equals("Linux"))
throw new AssertionError(
"SecureDirectoryStream not supported.");
System.out.println("SecureDirectoryStream not supported.");
return;
}
```

Start with the jdk_nio_2 output linked in TRSS and the Jenkins build, then inspect the reported SecureDS.java:49 failure and the shown SecureDirectoryStream check. Compare the failing OpenJDK 11 ARM result with the passing JDK 17 ARM result and use the provided Grinder rerun. Done means the affected test no longer fails unexpectedly on ARM Linux and its result is verified.

Written by the indexing model from the issue text.