Java 8: Files.newBufferedWriter instead of new FileWriter

Provides potentially better performance.

Signed-off-by: Markus KARG <markus@headcrashing.eu>

Author: mkarg

src/main/java/org/codehaus/plexus/util/FileUtils.java

@@ -60,7 +60,6 @@
 
 import java.io.BufferedReader;
 import java.io.File;
-import java.io.FileWriter;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
@@ -2253,7 +2252,7 @@ public static void copyFile( File from, File to, String encoding, FilterWrapper[
                 if ( encoding == null || encoding.length() < 1 )
                 {
                     fileReader = Files.newBufferedReader( from.toPath() );
-                    fileWriter = new FileWriter( to );
+                    fileWriter = Files.newBufferedWriter( to.toPath() );
                 }
                 else
                 {

src/main/java/org/codehaus/plexus/util/WriterFactory.java

@@ -17,8 +17,6 @@
  */
 
 import java.io.File;
-import java.io.FileNotFoundException;
-import java.io.FileWriter;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.io.OutputStreamWriter;
@@ -145,7 +143,7 @@ public static Writer newPlatformWriter( OutputStream out )
     public static Writer newPlatformWriter( File file )
         throws IOException
     {
-        return new FileWriter( file );
+        return Files.newBufferedWriter( file.toPath() );
     }
 
     /**

src/test/java/org/codehaus/plexus/util/IOUtilTest.java

@@ -22,7 +22,6 @@
 
 import java.io.BufferedOutputStream;
 import java.io.File;
-import java.io.FileWriter;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
@@ -178,7 +177,7 @@ public void testInputStreamToWriter()
     {
         File destination = newFile( "copy2.txt" );
         InputStream fin = Files.newInputStream( testFile.toPath() );
-        FileWriter fout = new FileWriter( destination );
+        Writer fout = Files.newBufferedWriter( destination.toPath() );
 
         IOUtil.copy( fin, fout );
 
@@ -232,7 +231,7 @@ public void testReaderToWriter()
     {
         File destination = newFile( "copy4.txt" );
         Reader fin = Files.newBufferedReader( testFile.toPath() );
-        FileWriter fout = new FileWriter( destination );
+        Writer fout = Files.newBufferedWriter( destination.toPath() );
         IOUtil.copy( fin, fout );
 
         fout.flush();
@@ -286,7 +285,7 @@ public void testStringToWriter()
         Reader fin = Files.newBufferedReader( testFile.toPath() );
         // Create our String. Rely on testReaderToString() to make sure this is valid.
         String str = IOUtil.toString( fin );
-        FileWriter fout = new FileWriter( destination );
+        Writer fout = Files.newBufferedWriter( destination.toPath() );
         IOUtil.copy( str, fout );
         fout.flush();
 
@@ -330,7 +329,7 @@ public void testByteArrayToWriter()
         throws Exception
     {
         File destination = newFile( "copy7.txt" );
-        FileWriter fout = new FileWriter( destination );
+        Writer fout = Files.newBufferedWriter( destination.toPath() );
         InputStream fin = Files.newInputStream( testFile.toPath() );
 
         // Create our byte[]. Rely on testInputStreamToByteArray() to make sure this is valid.

src/test/java/org/codehaus/plexus/util/cli/CommandlineTest.java

@@ -21,9 +21,10 @@
 import static org.junit.Assert.fail;
 
 import java.io.File;
-import java.io.FileWriter;
 import java.io.IOException;
 import java.io.Writer;
+import java.nio.file.Files;
+import java.nio.file.Paths;
 
 import org.codehaus.plexus.util.IOUtil;
 import org.codehaus.plexus.util.Os;
@@ -443,10 +444,10 @@ public void testDollarSignInArgumentPath()
             assertTrue( "Can't create dir:" + dir.getAbsolutePath(), dir.mkdirs() );
         }
 
-        FileWriter writer = null;
+        Writer writer = null;
         try
         {
-            writer = new FileWriter( new File( dir, "test$1.txt" ) );
+            writer = Files.newBufferedWriter( dir.toPath().resolve( "test$1.txt" ) );
             IOUtil.copy( "Success", writer );
         }
         finally
@@ -568,7 +569,7 @@ private static void createAndCallScript( File dir, String content )
             bat = new File( dir, "echo" );
         }
 
-        Writer w = new FileWriter( bat );
+        Writer w = Files.newBufferedWriter( bat.toPath() );
         try
         {
             IOUtil.copy( content, w );