diff --git a/app/src/androidTest/java/i2p/bote/android/provider/AttachmentProviderTests.java b/app/src/androidTest/java/i2p/bote/android/provider/AttachmentProviderTests.java
index e7fb33c..256476c 100644
--- a/app/src/androidTest/java/i2p/bote/android/provider/AttachmentProviderTests.java
+++ b/app/src/androidTest/java/i2p/bote/android/provider/AttachmentProviderTests.java
@@ -10,7 +10,6 @@ import android.support.test.InstrumentationRegistry;
 import android.support.test.runner.AndroidJUnit4;
 import android.test.ProviderTestCase2;
 import android.test.suitebuilder.annotation.LargeTest;
-import android.util.Log;
 
 import org.junit.After;
 import org.junit.Before;
@@ -34,6 +33,7 @@ import javax.mail.internet.MimeBodyPart;
 import i2p.bote.I2PBote;
 import i2p.bote.android.InitActivities;
 import i2p.bote.android.R;
+import i2p.bote.android.util.BoteHelper;
 import i2p.bote.android.util.ContentAttachment;
 import i2p.bote.email.Attachment;
 import i2p.bote.email.Email;
@@ -142,8 +142,8 @@ public class AttachmentProviderTests extends ProviderTestCase2<AttachmentProvide
         InputStream inOrig = attachment.getDataHandler().getInputStream();
         ByteArrayOutputStream outProv = new ByteArrayOutputStream();
         ByteArrayOutputStream outOrig = new ByteArrayOutputStream();
-        copyStream(inProv, outProv);
-        copyStream(inOrig, outOrig);
+        BoteHelper.copyStream(inProv, outProv);
+        BoteHelper.copyStream(inOrig, outOrig);
 
         assertThat("Provider content does not match original content",
                 outProv.toByteArray(), is(equalTo(outOrig.toByteArray())));
@@ -205,21 +205,4 @@ public class AttachmentProviderTests extends ProviderTestCase2<AttachmentProvide
         super.tearDown();
         System.setProperty("i2pbote.initialized", "false");
     }
-
-    private void copyStream(InputStream in, OutputStream out) {
-        byte[] buf = new byte[8192];
-        int len;
-
-        try {
-            while ((len = in.read(buf)) > 0) {
-                out.write(buf, 0, len);
-            }
-
-            in.close();
-            out.flush();
-            out.close();
-        } catch (IOException e) {
-            Log.e(getClass().getSimpleName(), "Exception copying streams", e);
-        }
-    }
 }
diff --git a/app/src/main/java/i2p/bote/android/util/BoteHelper.java b/app/src/main/java/i2p/bote/android/util/BoteHelper.java
index 68ae913..7c00ebf 100644
--- a/app/src/main/java/i2p/bote/android/util/BoteHelper.java
+++ b/app/src/main/java/i2p/bote/android/util/BoteHelper.java
@@ -13,6 +13,7 @@ import android.graphics.Canvas;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
 import android.os.AsyncTask;
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.WindowManager;
@@ -24,6 +25,8 @@ import com.lambdaworks.codec.Base64;
 
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
 import java.security.GeneralSecurityException;
 import java.util.Collection;
 import java.util.Iterator;
@@ -33,6 +36,7 @@ import javax.mail.Address;
 import javax.mail.MessagingException;
 import javax.mail.Part;
 
+import i2p.bote.android.Constants;
 import i2p.bote.android.R;
 import i2p.bote.android.provider.AttachmentProvider;
 import i2p.bote.email.Email;
@@ -451,4 +455,21 @@ public class BoteHelper extends GeneralHelper {
             }
         }
     }
+
+    public static void copyStream(InputStream in, OutputStream out) {
+        byte[] buf = new byte[8192];
+        int len;
+
+        try {
+            while ((len = in.read(buf)) > 0) {
+                out.write(buf, 0, len);
+            }
+
+            in.close();
+            out.flush();
+            out.close();
+        } catch (IOException e) {
+            Log.e(Constants.ANDROID_LOG_TAG, "Exception copying streams", e);
+        }
+    }
 }