HADOOP-18465. Fix S3A SSE test skip when encryption is disabled (#4925)

Contributed by Daniel Carl Jones

hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/AbstractTestS3AEncryption.java

@@ -78,8 +78,16 @@ public abstract class AbstractTestS3AEncryption extends AbstractS3ATestBase {
       0, 1, 2, 3, 4, 5, 254, 255, 256, 257, 2 ^ 12 - 1
   };
 
+  /**
+   * Skips the tests if encryption is not enabled in configuration.
+   *
+   * @implNote We can use {@link #createConfiguration()} here since
+   * it does not depend on any per-bucket based configuration.
+   * Otherwise, we would need to grab the configuration from an
+   * instance of {@link S3AFileSystem}.
+   */
   protected void requireEncryptedFileSystem() {
-    skipIfEncryptionTestsDisabled(getFileSystem().getConf());
+    skipIfEncryptionTestsDisabled(createConfiguration());
   }
 
   /**
@@ -91,8 +99,8 @@ public abstract class AbstractTestS3AEncryption extends AbstractS3ATestBase {
   @Override
   public void setup() throws Exception {
     try {
-      super.setup();
       requireEncryptedFileSystem();
+      super.setup();
     } catch (AccessDeniedException e) {
       skip("Bucket does not allow " + getSSEAlgorithm() + " encryption method");
     }