kokoro graalvm build is failing in main

[jinseopkim0]

The last successful build was on Oct 23. There is a chat thread on this that started on Oct 30.

Stack trace:

Failures (767):
  JUnit Vintage:RegionSslPoliciesClientTest:listAvailableFeaturesTest
    MethodSource [className = 'com.google.cloud.compute.v1.RegionSslPoliciesClientTest', methodName = 'listAvailableFeaturesTest', methodParameterTypes = '']
    => java.lang.AssertionError
       org.junit.Assert.fail(Assert.java:87)
       org.junit.Assert.assertTrue(Assert.java:42)
       org.junit.Assert.assertTrue(Assert.java:53)
       com.google.cloud.compute.v1.RegionSslPoliciesClientTest.listAvailableFeaturesTest(RegionSslPoliciesClientTest.java:365)
       [email protected]/java.lang.reflect.Method.invoke([Method.java:580](https://cs.corp.google.com/#search/&sq=package:%5Epiper$%20project:openjdk21&q=java/lang/reflect/Method.java:580))
  JUnit Vintage:RegionSslPoliciesClientTest:patchTest
    MethodSource [className = 'com.google.cloud.compute.v1.RegionSslPoliciesClientTest', methodName = 'patchTest', methodParameterTypes = '']
    => java.lang.AssertionError
       org.junit.Assert.fail(Assert.java:87)
       org.junit.Assert.assertTrue(Assert.java:42)
       org.junit.Assert.assertTrue(Assert.java:53)
       com.google.cloud.compute.v1.RegionSslPoliciesClientTest.patchTest(RegionSslPoliciesClientTest.java:441)
       [email protected]/java.lang.reflect.Method.invoke([Method.java:580](https://cs.corp.google.com/#search/&sq=package:%5Epiper$%20project:openjdk21&q=java/lang/reflect/Method.java:580))
  JUnit Vintage:RegionSslPoliciesClientTest:getTest
    MethodSource [className = 'com.google.cloud.compute.v1.RegionSslPoliciesClientTest', methodName = 'getTest', methodParameterTypes = '']
    => java.lang.AssertionError
       org.junit.Assert.fail(Assert.java:87)
       org.junit.Assert.assertTrue(Assert.java:42)
       org.junit.Assert.assertTrue(Assert.java:53)
       com.google.cloud.compute.v1.RegionSslPoliciesClientTest.getTest(RegionSslPoliciesClientTest.java:191)
       [email protected]/java.lang.reflect.Method.invoke([Method.java:580](https://cs.corp.google.com/#search/&sq=package:%5Epiper$%20project:openjdk21&q=java/lang/reflect/Method.java:580))
  JUnit Vintage:RegionSslPoliciesClientTest:insertTest
    MethodSource [className = 'com.google.cloud.compute.v1.RegionSslPoliciesClientTest', methodName = 'insertTest', methodParameterTypes = '']
    => java.lang.AssertionError
       org.junit.Assert.fail(Assert.java:87)
       org.junit.Assert.assertTrue(Assert.java:42)
       org.junit.Assert.assertTrue(Assert.java:53)
       com.google.cloud.compute.v1.RegionSslPoliciesClientTest.insertTest(RegionSslPoliciesClientTest.java:266)
       [email protected]/java.lang.reflect.Method.invoke([Method.java:580](https://cs.corp.google.com/#search/&sq=package:%5Epiper$%20project:openjdk21&q=java/lang/reflect/Method.java:580))
  JUnit Vintage:RegionSslPoliciesClientTest:listTest
    MethodSource [className = 'com.google.cloud.compute.v1.RegionSslPoliciesClientTest', methodName = 'listTest', methodParameterTypes = '']
    => java.lang.AssertionError
       org.junit.Assert.fail(Assert.java:87)
       org.junit.Assert.assertTrue(Assert.java:42)
       org.junit.Assert.assertTrue(Assert.java:53)
       com.google.cloud.compute.v1.RegionSslPoliciesClientTest.listTest(RegionSslPoliciesClientTest.java:318)
       [email protected]/java.lang.reflect.Method.invoke([Method.java:580](https://cs.corp.google.com/#search/&sq=package:%5Epiper$%20project:openjdk21&q=java/lang/reflect/Method.java:580))