remove redundant public modifier in interfaces
diff --git a/src/main/org/apache/ant/compress/util/ArchiveStreamFactory.java b/src/main/org/apache/ant/compress/util/ArchiveStreamFactory.java
index 0097dec..5224832 100644
--- a/src/main/org/apache/ant/compress/util/ArchiveStreamFactory.java
+++ b/src/main/org/apache/ant/compress/util/ArchiveStreamFactory.java
@@ -35,8 +35,7 @@
      * @param encoding the encoding of the entry names, ignored by all
      * formats except arj, cpio, dump, tar and zip
      */
-    public ArchiveInputStream getArchiveStream(InputStream stream,
-                                               String encoding)
+    ArchiveInputStream getArchiveStream(InputStream stream, String encoding)
         throws IOException;
 
 
@@ -45,8 +44,7 @@
      * @param encoding the encoding of the entry names, ignored by all
      * formats except cpio, tar and zip
      */
-    public ArchiveOutputStream getArchiveStream(OutputStream stream,
-                                                String encoding)
+    ArchiveOutputStream getArchiveStream(OutputStream stream, String encoding)
         throws IOException;
 
 }
diff --git a/src/main/org/apache/ant/compress/util/CompressorStreamFactory.java b/src/main/org/apache/ant/compress/util/CompressorStreamFactory.java
index 4385882..ac2ce3b 100644
--- a/src/main/org/apache/ant/compress/util/CompressorStreamFactory.java
+++ b/src/main/org/apache/ant/compress/util/CompressorStreamFactory.java
@@ -33,14 +33,14 @@
     /**
      * @param stream the stream to read from, should be buffered
      */
-    public CompressorInputStream getCompressorStream(InputStream stream)
+    CompressorInputStream getCompressorStream(InputStream stream)
         throws IOException;
 
 
     /**
      * @param stream the stream to write to, should be buffered
      */
-    public CompressorOutputStream getCompressorStream(OutputStream stream)
+    CompressorOutputStream getCompressorStream(OutputStream stream)
         throws IOException;
 
-}
\ No newline at end of file
+}
diff --git a/src/main/org/apache/ant/compress/util/CompressorWithConcatenatedStreamsFactory.java b/src/main/org/apache/ant/compress/util/CompressorWithConcatenatedStreamsFactory.java
index 409c85a..91e4ea2 100644
--- a/src/main/org/apache/ant/compress/util/CompressorWithConcatenatedStreamsFactory.java
+++ b/src/main/org/apache/ant/compress/util/CompressorWithConcatenatedStreamsFactory.java
@@ -38,7 +38,7 @@
      *                          input; if false, stop after the first
      *                          stream
      */
-    public CompressorInputStream getCompressorStream(InputStream stream,
-                                                     boolean decompressConcatenated)
+    CompressorInputStream getCompressorStream(InputStream stream,
+                                              boolean decompressConcatenated)
         throws IOException;
-}
\ No newline at end of file
+}