javaodocs; import; unnecessary condition.

Author: saxenapranav

hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/extensions/EncryptionContextProvider.java

@@ -37,7 +37,7 @@
  * */
 public interface EncryptionContextProvider extends Destroyable {
   /**
-   * Initialize instance
+   * Initialize instance.
    *
    * @param configuration rawConfig instance
    * @param accountName Account Name (with domain)
@@ -47,7 +47,7 @@ public interface EncryptionContextProvider extends Destroyable {
   void initialize(Configuration configuration, String accountName, String fileSystem) throws IOException;
 
   /**
-   * Fetch encryption context for a given path
+   * Fetch encryption context for a given path.
    *
    * @param path file path from filesystem root
    * @return encryptionContext key
@@ -56,7 +56,7 @@ public interface EncryptionContextProvider extends Destroyable {
   ABFSKey getEncryptionContext(String path) throws IOException;
 
   /**
-   * Fetch encryption key in-exchange for encryption context
+   * Fetch encryption key in-exchange for encryption context.
    *
    * @param path file path from filesystem root
    * @param encryptionContext encryptionContext fetched from server

hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/AbfsClient.java

@@ -262,7 +262,6 @@ private void addEncryptionKeyRequestHeaders(String path,
       return;
     }
     String encodedKey, encodedKeySHA256;
-    boolean encryptionAdapterCreated = false;
     switch (encryptionType) {
     case GLOBAL_KEY:
       encodedKey = clientProvidedEncryptionKey;
@@ -283,10 +282,6 @@ private void addEncryptionKeyRequestHeaders(String path,
     default: return; // no client-provided encryption keys
     }
 
-    if (encryptionAdapterCreated && encryptionAdapter != null) {
-      encryptionAdapter.destroy();
-    }
-
     requestHeaders.add(new AbfsHttpHeader(X_MS_ENCRYPTION_KEY, encodedKey));
     requestHeaders.add(
         new AbfsHttpHeader(X_MS_ENCRYPTION_KEY_SHA256, encodedKeySHA256));

hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/AbfsInputStream.java

@@ -39,10 +39,10 @@
 import org.apache.hadoop.fs.azurebfs.constants.FSOperationType;
 import org.apache.hadoop.fs.azurebfs.contracts.exceptions.AbfsRestOperationException;
 import org.apache.hadoop.fs.azurebfs.contracts.exceptions.AzureBlobFileSystemException;
+import org.apache.hadoop.fs.azurebfs.security.EncryptionAdapter;
 import org.apache.hadoop.fs.azurebfs.utils.CachedSASToken;
 import org.apache.hadoop.fs.azurebfs.utils.Listener;
 import org.apache.hadoop.fs.azurebfs.utils.TracingContext;
-import org.apache.hadoop.fs.azurebfs.security.EncryptionAdapter;
 import org.apache.hadoop.fs.statistics.IOStatistics;
 import org.apache.hadoop.fs.statistics.IOStatisticsSource;
 

hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/AbfsOutputStream.java

@@ -500,7 +500,6 @@ public synchronized void close() throws IOException {
       if (encryptionAdapter != null) {
         encryptionAdapter.destroy();
       }
-
       if (hasLease()) {
         lease.free();
         lease = null;