diff --git a/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/http/ExceptionDiags.java b/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/http/ExceptionDiags.java
index 6baf5c1fac..c7e3d2573f 100644
--- a/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/http/ExceptionDiags.java
+++ b/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/http/ExceptionDiags.java
@@ -18,8 +18,8 @@
 
 package org.apache.hadoop.fs.swift.http;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
 import java.lang.reflect.Constructor;
@@ -33,7 +33,8 @@
  * available in branch-1 too.
  */
 public class ExceptionDiags {
-  private static final Log LOG = LogFactory.getLog(ExceptionDiags.class);
+  private static final Logger LOG =
+      LoggerFactory.getLogger(ExceptionDiags.class);
 
   /** text to point users elsewhere: {@value} */
   private static final String FOR_MORE_DETAILS_SEE
diff --git a/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/http/RestClientBindings.java b/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/http/RestClientBindings.java
index d11c369bb2..f6917d3ffa 100644
--- a/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/http/RestClientBindings.java
+++ b/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/http/RestClientBindings.java
@@ -18,8 +18,8 @@
 
 package org.apache.hadoop.fs.swift.http;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.swift.exceptions.SwiftConfigurationException;
 
@@ -39,7 +39,8 @@
  * and then builds an appropriate Properties file.
  */
 public final class RestClientBindings {
-  private static final Log LOG = LogFactory.getLog(RestClientBindings.class);
+  private static final Logger LOG =
+      LoggerFactory.getLogger(RestClientBindings.class);
 
   public static final String E_INVALID_NAME = "Invalid swift hostname '%s':" +
           " hostname must in form container.service";
diff --git a/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/http/SwiftRestClient.java b/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/http/SwiftRestClient.java
index ee6cc2fc3e..cf6bf9b972 100644
--- a/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/http/SwiftRestClient.java
+++ b/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/http/SwiftRestClient.java
@@ -40,8 +40,8 @@
 import org.apache.http.impl.client.DefaultHttpRequestRetryHandler;
 import org.apache.http.impl.client.HttpClientBuilder;
 import org.apache.http.message.BasicHeader;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.swift.auth.ApiKeyAuthenticationRequest;
 import org.apache.hadoop.fs.swift.auth.ApiKeyCredentials;
@@ -97,7 +97,8 @@
  * details.
  */
 public final class SwiftRestClient {
-  private static final Log LOG = LogFactory.getLog(SwiftRestClient.class);
+  private static final Logger LOG =
+      LoggerFactory.getLogger(SwiftRestClient.class);
 
   /**
    * Header that says "use newest version" -ensures that
@@ -1725,7 +1726,7 @@ private <M extends HttpUriRequest> HttpResponse execWithDebugOutput(M req,
       for (Header header : req.getAllHeaders()) {
         builder.append(header.toString());
       }
-      LOG.debug(builder);
+      LOG.debug(builder.toString());
     }
     HttpResponse resp = client.execute(req);
     if (LOG.isDebugEnabled()) {
diff --git a/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/snative/SwiftNativeFileSystem.java b/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/snative/SwiftNativeFileSystem.java
index 9217532333..191d56ff71 100644
--- a/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/snative/SwiftNativeFileSystem.java
+++ b/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/snative/SwiftNativeFileSystem.java
@@ -18,8 +18,8 @@
 
 package org.apache.hadoop.fs.swift.snative;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.BlockLocation;
@@ -54,8 +54,8 @@ public class SwiftNativeFileSystem extends FileSystem {
 
   /** filesystem prefix: {@value} */
   public static final String SWIFT = "swift";
-  private static final Log LOG =
-          LogFactory.getLog(SwiftNativeFileSystem.class);
+  private static final Logger LOG =
+      LoggerFactory.getLogger(SwiftNativeFileSystem.class);
 
   /**
    * path to user work directory for storing temporary files
diff --git a/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/snative/SwiftNativeFileSystemStore.java b/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/snative/SwiftNativeFileSystemStore.java
index a44051ac56..ed7a782284 100644
--- a/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/snative/SwiftNativeFileSystemStore.java
+++ b/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/snative/SwiftNativeFileSystemStore.java
@@ -22,8 +22,8 @@
 import org.apache.http.Header;
 import org.apache.http.HttpStatus;
 import org.apache.http.message.BasicHeader;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileAlreadyExistsException;
 import org.apache.hadoop.fs.FileStatus;
@@ -65,8 +65,8 @@
 public class SwiftNativeFileSystemStore {
   private static final Pattern URI_PATTERN = Pattern.compile("\"\\S+?\"");
   private static final String PATTERN = "EEE, d MMM yyyy hh:mm:ss zzz";
-  private static final Log LOG =
-          LogFactory.getLog(SwiftNativeFileSystemStore.class);
+  private static final Logger LOG =
+      LoggerFactory.getLogger(SwiftNativeFileSystemStore.class);
   private URI uri;
   private SwiftRestClient swiftRestClient;
 
@@ -720,7 +720,7 @@ private void logDirectory(String message, SwiftObjectPath objectPath,
     if (LOG.isDebugEnabled()) {
       LOG.debug(message + ": listing of " + objectPath);
       for (FileStatus fileStatus : statuses) {
-        LOG.debug(fileStatus.getPath());
+        LOG.debug(fileStatus.getPath().toString());
       }
     }
   }
diff --git a/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/snative/SwiftNativeInputStream.java b/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/snative/SwiftNativeInputStream.java
index 23d8c09f03..bce7325c98 100644
--- a/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/snative/SwiftNativeInputStream.java
+++ b/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/snative/SwiftNativeInputStream.java
@@ -18,8 +18,8 @@
 
 package org.apache.hadoop.fs.swift.snative;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.apache.hadoop.fs.FSExceptionMessages;
 import org.apache.hadoop.fs.FSInputStream;
 import org.apache.hadoop.fs.FileSystem;
@@ -43,7 +43,8 @@
  */
 class SwiftNativeInputStream extends FSInputStream {
 
-  private static final Log LOG = LogFactory.getLog(SwiftNativeInputStream.class);
+  private static final Logger LOG =
+      LoggerFactory.getLogger(SwiftNativeInputStream.class);
 
   /**
    *  range requested off the server: {@value}
diff --git a/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/snative/SwiftNativeOutputStream.java b/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/snative/SwiftNativeOutputStream.java
index 127fbb8d46..ac49a8a649 100644
--- a/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/snative/SwiftNativeOutputStream.java
+++ b/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/snative/SwiftNativeOutputStream.java
@@ -18,8 +18,8 @@
 
 package org.apache.hadoop.fs.swift.snative;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.fs.swift.exceptions.SwiftConnectionClosedException;
@@ -45,8 +45,8 @@
 class SwiftNativeOutputStream extends OutputStream {
   public static final int ATTEMPT_LIMIT = 3;
   private long filePartSize;
-  private static final Log LOG =
-          LogFactory.getLog(SwiftNativeOutputStream.class);
+  private static final Logger LOG =
+      LoggerFactory.getLogger(SwiftNativeOutputStream.class);
   private Configuration conf;
   private String key;
   private File backupFile;
diff --git a/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/util/SwiftTestUtils.java b/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/util/SwiftTestUtils.java
index 726045ee9e..2e3abce251 100644
--- a/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/util/SwiftTestUtils.java
+++ b/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/util/SwiftTestUtils.java
@@ -18,8 +18,8 @@
 
 package org.apache.hadoop.fs.swift.util;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FSDataInputStream;
 import org.apache.hadoop.fs.FSDataOutputStream;
@@ -40,8 +40,8 @@
  */
 public class SwiftTestUtils extends org.junit.Assert {
 
-  private static final Log LOG =
-    LogFactory.getLog(SwiftTestUtils.class);
+  private static final Logger LOG =
+      LoggerFactory.getLogger(SwiftTestUtils.class);
 
   public static final String TEST_FS_SWIFT = "test.fs.swift.name";
   public static final String IO_FILE_BUFFER_SIZE = "io.file.buffer.size";
diff --git a/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/util/SwiftUtils.java b/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/util/SwiftUtils.java
index 10e49c2473..f218a80595 100644
--- a/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/util/SwiftUtils.java
+++ b/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/util/SwiftUtils.java
@@ -18,7 +18,7 @@
 
 package org.apache.hadoop.fs.swift.util;
 
-import org.apache.commons.logging.Log;
+import org.slf4j.Logger;
 import org.apache.hadoop.fs.FileStatus;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
@@ -98,7 +98,7 @@ public static boolean isRootDir(SwiftObjectPath swiftObject) {
    * @param text text message
    * @param args args arguments to the print statement
    */
-  public static void debug(Log log, String text, Object... args) {
+  public static void debug(Logger log, String text, Object... args) {
     if (log.isDebugEnabled()) {
       log.debug(String.format(text, args));
     }
@@ -110,7 +110,7 @@ public static void debug(Log log, String text, Object... args) {
    * @param text text message
    * @param ex exception
    */
-  public static void debugEx(Log log, String text, Exception ex) {
+  public static void debugEx(Logger log, String text, Exception ex) {
     if (log.isDebugEnabled()) {
       log.debug(text + ex, ex);
     }
@@ -124,7 +124,7 @@ public static void debugEx(Log log, String text, Exception ex) {
    * @param text text message
    * @param args args arguments to the print statement
    */
-  public static void trace(Log log, String text, Object... args) {
+  public static void trace(Logger log, String text, Object... args) {
     if (log.isTraceEnabled()) {
       log.trace(String.format(text, args));
     }
diff --git a/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/SwiftFileSystemBaseTest.java b/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/SwiftFileSystemBaseTest.java
index 99e03c7a71..4361a06a94 100644
--- a/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/SwiftFileSystemBaseTest.java
+++ b/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/SwiftFileSystemBaseTest.java
@@ -18,8 +18,8 @@
 
 package org.apache.hadoop.fs.swift;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FSDataOutputStream;
 import org.apache.hadoop.fs.FileStatus;
@@ -53,8 +53,8 @@
 public class SwiftFileSystemBaseTest extends Assert implements
                                                     SwiftTestConstants {
 
-  protected static final Log LOG =
-          LogFactory.getLog(SwiftFileSystemBaseTest.class);
+  protected static final Logger LOG =
+      LoggerFactory.getLogger(SwiftFileSystemBaseTest.class);
   protected SwiftNativeFileSystem fs;
   protected static SwiftNativeFileSystem lastFs;
   protected byte[] data = SwiftTestUtils.dataset(getBlockSize() * 2, 0, 255);
diff --git a/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestLogResources.java b/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestLogResources.java
index 6b1b79fa5e..99c6962cb4 100644
--- a/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestLogResources.java
+++ b/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestLogResources.java
@@ -18,8 +18,8 @@
 
 package org.apache.hadoop.fs.swift;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.junit.Test;
 
 import java.net.URL;
@@ -28,8 +28,8 @@
  * This test just debugs which log resources are being picked up
  */
 public class TestLogResources implements SwiftTestConstants {
-  protected static final Log LOG =
-    LogFactory.getLog(TestLogResources.class);
+  protected static final Logger LOG =
+      LoggerFactory.getLogger(TestLogResources.class);
 
   private void printf(String format, Object... args) {
     String msg = String.format(format, args);
diff --git a/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestReadPastBuffer.java b/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestReadPastBuffer.java
index cdcd7626c8..c195bffc51 100644
--- a/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestReadPastBuffer.java
+++ b/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestReadPastBuffer.java
@@ -18,8 +18,8 @@
 
 package org.apache.hadoop.fs.swift;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FSDataInputStream;
 import org.apache.hadoop.fs.Path;
@@ -44,8 +44,8 @@
  * to get confused.
  */
 public class TestReadPastBuffer extends SwiftFileSystemBaseTest {
-  protected static final Log LOG =
-    LogFactory.getLog(TestReadPastBuffer.class);
+  protected static final Logger LOG =
+      LoggerFactory.getLogger(TestReadPastBuffer.class);
   public static final int SWIFT_READ_BLOCKSIZE = 4096;
   public static final int SEEK_FILE_LEN = SWIFT_READ_BLOCKSIZE * 2;
 
diff --git a/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSeek.java b/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSeek.java
index 9a28886473..51fa92a2eb 100644
--- a/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSeek.java
+++ b/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSeek.java
@@ -18,8 +18,8 @@
 
 package org.apache.hadoop.fs.swift;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FSDataInputStream;
 import org.apache.hadoop.fs.Path;
@@ -48,8 +48,8 @@
  * to get confused.
  */
 public class TestSeek extends SwiftFileSystemBaseTest {
-  protected static final Log LOG =
-    LogFactory.getLog(TestSeek.class);
+  protected static final Logger LOG =
+      LoggerFactory.getLogger(TestSeek.class);
   public static final int SMALL_SEEK_FILE_LEN = 256;
 
   private Path testPath;
diff --git a/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSwiftFileSystemBasicOps.java b/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSwiftFileSystemBasicOps.java
index c84be6b3da..516dc99fab 100644
--- a/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSwiftFileSystemBasicOps.java
+++ b/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSwiftFileSystemBasicOps.java
@@ -19,8 +19,8 @@
 package org.apache.hadoop.fs.swift;
 
 import org.junit.Assert;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.apache.hadoop.fs.FileStatus;
 import org.apache.hadoop.fs.ParentNotDirectoryException;
 import org.apache.hadoop.fs.Path;
@@ -46,8 +46,8 @@
  */
 public class TestSwiftFileSystemBasicOps extends SwiftFileSystemBaseTest {
 
-  private static final Log LOG =
-          LogFactory.getLog(TestSwiftFileSystemBasicOps.class);
+  private static final Logger LOG =
+      LoggerFactory.getLogger(TestSwiftFileSystemBasicOps.class);
 
   @Test(timeout = SWIFT_TEST_TIMEOUT)
   public void testLsRoot() throws Throwable {
diff --git a/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSwiftFileSystemConcurrency.java b/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSwiftFileSystemConcurrency.java
index 9b557e7850..c447919efa 100644
--- a/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSwiftFileSystemConcurrency.java
+++ b/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSwiftFileSystemConcurrency.java
@@ -18,8 +18,8 @@
 
 package org.apache.hadoop.fs.swift;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.apache.hadoop.fs.FSDataOutputStream;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.fs.swift.util.SwiftTestUtils;
@@ -37,8 +37,8 @@
  * Consider it "best effort"
  */
 public class TestSwiftFileSystemConcurrency extends SwiftFileSystemBaseTest {
-  protected static final Log LOG =
-    LogFactory.getLog(TestSwiftFileSystemConcurrency.class);
+  protected static final Logger LOG =
+      LoggerFactory.getLogger(TestSwiftFileSystemConcurrency.class);
   private Exception thread1Ex, thread2Ex;
   public static final String TEST_RACE_CONDITION_ON_DELETE_DIR =
     "/test/testraceconditionondirdeletetest";
diff --git a/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSwiftFileSystemContract.java b/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSwiftFileSystemContract.java
index baeb4f3676..1655b95231 100644
--- a/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSwiftFileSystemContract.java
+++ b/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSwiftFileSystemContract.java
@@ -18,8 +18,8 @@
 
 package org.apache.hadoop.fs.swift;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileSystemContractBaseTest;
 import org.apache.hadoop.fs.ParentNotDirectoryException;
@@ -47,8 +47,8 @@
  */
 public class TestSwiftFileSystemContract
         extends FileSystemContractBaseTest {
-  private static final Log LOG =
-          LogFactory.getLog(TestSwiftFileSystemContract.class);
+  private static final Logger LOG =
+      LoggerFactory.getLogger(TestSwiftFileSystemContract.class);
 
   /**
    * Override this if the filesystem is not case sensitive
diff --git a/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSwiftObjectPath.java b/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSwiftObjectPath.java
index 338763cfe8..5692b48f11 100644
--- a/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSwiftObjectPath.java
+++ b/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSwiftObjectPath.java
@@ -17,8 +17,8 @@
  */
 package org.apache.hadoop.fs.swift;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.fs.swift.http.RestClientBindings;
 import org.apache.hadoop.fs.swift.http.SwiftRestClient;
@@ -36,7 +36,8 @@
  * Unit tests for SwiftObjectPath class.
  */
 public class TestSwiftObjectPath implements SwiftTestConstants {
-  private static final Log LOG = LogFactory.getLog(TestSwiftObjectPath.class);
+  private static final Logger LOG =
+      LoggerFactory.getLogger(TestSwiftObjectPath.class);
 
   /**
    * What an endpoint looks like. This is derived from a (valid)
diff --git a/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/http/TestSwiftRestClient.java b/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/http/TestSwiftRestClient.java
index 17f616bd9e..7568c11c56 100644
--- a/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/http/TestSwiftRestClient.java
+++ b/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/http/TestSwiftRestClient.java
@@ -18,8 +18,8 @@
 
 package org.apache.hadoop.fs.swift.http;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.fs.swift.SwiftTestConstants;
@@ -39,8 +39,8 @@
 import java.net.URI;
 
 public class TestSwiftRestClient implements SwiftTestConstants {
-  private static final Log LOG =
-          LogFactory.getLog(TestSwiftRestClient.class);
+  private static final Logger LOG =
+      LoggerFactory.getLogger(TestSwiftRestClient.class);
 
   private Configuration conf;
   private boolean runTests;
@@ -110,7 +110,7 @@ public void testPutAndDelete() throws Throwable {
       //expected
     }
     for (DurationStats stats: client.getOperationStatistics()) {
-      LOG.info(stats);
+      LOG.info(stats.toString());
     }
   }
 
diff --git a/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/scale/TestWriteManySmallFiles.java b/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/scale/TestWriteManySmallFiles.java
index 8694f6ca48..1d6cfa2e86 100644
--- a/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/scale/TestWriteManySmallFiles.java
+++ b/hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/scale/TestWriteManySmallFiles.java
@@ -18,8 +18,8 @@
 
 package org.apache.hadoop.fs.swift.scale;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.apache.hadoop.fs.FileStatus;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.fs.swift.util.Duration;
@@ -29,7 +29,8 @@
 
 public class TestWriteManySmallFiles extends SwiftScaleTestBase {
 
-  public static final Log LOG = LogFactory.getLog(TestWriteManySmallFiles.class);
+  public static final Logger LOG =
+      LoggerFactory.getLogger(TestWriteManySmallFiles.class);
 
   @Test(timeout = SWIFT_BULK_IO_TEST_TIMEOUT)
   public void testScaledWriteThenRead() throws Throwable {