typos and unused imports

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@749527 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/zip/NioZipEncoding.java

@@ -32,7 +32,7 @@ import java.nio.charset.CodingErrorAction;
  * java.nio.charset.Charset Charset} to encode names.
  *
  * <p>This implementation works for all cases under java-1.5 or
- * later. However, in java-1.4, some charsets don't have a java-nio
+ * later. However, in java-1.4, some charsets don't have a java.nio
  * implementation, most notably the default ZIP encoding Cp437.</p>
  * 
  * <p>The methods of this class are reentrant.</p>

src/main/org/apache/tools/zip/Simple8BitZipEncoding.java

@@ -21,7 +21,6 @@ package org.apache.tools.zip;
 
 import java.io.IOException;
 import java.nio.ByteBuffer;
-import java.nio.charset.Charset;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;

src/main/org/apache/tools/zip/ZipEncoding.java

@@ -21,7 +21,6 @@ package org.apache.tools.zip;
 
 import java.io.IOException;
 import java.nio.ByteBuffer;
-import java.nio.charset.Charset;
 
 /**
  * An interface for encoders that do a pretty encoding of ZIP
@@ -35,12 +34,12 @@ import java.nio.charset.Charset;
  * <p>The main reason for defining an own encoding layer comes from
  * the problems with {@link java.lang.String#getBytes(String)
  * String.getBytes}, which encodes unknown characters as ASCII
- * quotation marks ('?'), which is per definition an invalid filename
- * character under some operating systems (Windows, e.g.) leading to
- * ignored ZIP entries.</p>
+ * quotation marks ('?'). Quotation marks are per definition an
+ * invalid filename on some operating systems  like Windows, which
+ * leads to ignored ZIP entries.</p>
  * 
  * <p>All implementations should implement this interface in a
- * reentrant way.<(p>
+ * reentrant way.</p>
  */
 interface ZipEncoding {
     /**