HDFS-7075. hadoop-fuse-dfs fails because it cannot find JavaKeyStoreProvider$Factory. (cmccabe)

(cherry picked from commit f23024852502441fc259012664e444e5e51c604a)

hadoop-common-project/hadoop-common/CHANGES.txt

@@ -391,6 +391,9 @@ Release 2.6.0 - UNRELEASED
     HDFS-6912. SharedFileDescriptorFactory should not allocate sparse files
     (cmccabe)
 
+    HDFS-7075. hadoop-fuse-dfs fails because it cannot find
+    JavaKeyStoreProvider$Factory (cmccabe)
+
     BREAKDOWN OF HDFS-6134 AND HADOOP-10150 SUBTASKS AND RELATED JIRAS
   
       HADOOP-10734. Implement high-performance secure random number sources.

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/crypto/key/KeyProviderFactory.java

@@ -46,7 +46,8 @@ public abstract class KeyProviderFactory {
                                              ) throws IOException;
 
   private static final ServiceLoader<KeyProviderFactory> serviceLoader =
-      ServiceLoader.load(KeyProviderFactory.class);
+      ServiceLoader.load(KeyProviderFactory.class,
+          KeyProviderFactory.class.getClassLoader());
 
   // Iterate through the serviceLoader to avoid lazy loading.
   // Lazy loading would require synchronization in concurrent use cases.