JCLOUDS-534 Avoid runtime incompatibility introduced by Guava's closeQuietly.
diff --git a/glacier/src/main/java/org/jclouds/glacier/util/AWSRequestSignerV4.java b/glacier/src/main/java/org/jclouds/glacier/util/AWSRequestSignerV4.java
index 3b9b2ba..80cc84f 100644
--- a/glacier/src/main/java/org/jclouds/glacier/util/AWSRequestSignerV4.java
+++ b/glacier/src/main/java/org/jclouds/glacier/util/AWSRequestSignerV4.java
@@ -18,6 +18,7 @@
 
 import static com.google.common.base.Charsets.UTF_8;
 import static com.google.common.base.Preconditions.checkNotNull;
+import static org.jclouds.util.Closeables2.closeQuietly;
 
 import java.io.IOException;
 import java.util.Locale;
@@ -42,7 +43,6 @@
 import com.google.common.io.BaseEncoding;
 import com.google.common.io.ByteSource;
 import com.google.common.io.ByteStreams;
-import com.google.common.io.Closeables;
 import com.google.common.net.HttpHeaders;
 
 // TODO: Query parameters, not necessary for Glacier
@@ -144,7 +144,7 @@
       } catch (IOException e) {
          throw new HttpException("Error signing request", e);
       } finally {
-         Closeables.closeQuietly(his);
+         closeQuietly(his);
       }
    }
 
diff --git a/glacier/src/main/java/org/jclouds/glacier/util/TreeHash.java b/glacier/src/main/java/org/jclouds/glacier/util/TreeHash.java
index aa0280d..7ead9fc 100644
--- a/glacier/src/main/java/org/jclouds/glacier/util/TreeHash.java
+++ b/glacier/src/main/java/org/jclouds/glacier/util/TreeHash.java
@@ -18,6 +18,7 @@
 
 import static com.google.common.base.Preconditions.checkArgument;
 import static com.google.common.base.Preconditions.checkNotNull;
+import static org.jclouds.util.Closeables2.closeQuietly;
 
 import java.io.IOException;
 import java.io.InputStream;
@@ -35,7 +36,6 @@
 import com.google.common.hash.Hashing;
 import com.google.common.hash.HashingInputStream;
 import com.google.common.io.ByteStreams;
-import com.google.common.io.Closeables;
 
 public final class TreeHash {
    private static final int CHUNK_SIZE = 1024 * 1024;
@@ -122,7 +122,7 @@
          //The result list contains exactly one element now.
          return new TreeHash(hashList(list.build()), linearHis.hash());
       } finally {
-         Closeables.closeQuietly(is);
+         closeQuietly(is);
       }
    }