Imported GNU Classpath 0.90

Imported GNU Classpath 0.90
       * scripts/makemake.tcl: Set gnu/java/awt/peer/swing to ignore.
       * gnu/classpath/jdwp/VMFrame.java (SIZE): New constant.
       * java/lang/VMCompiler.java: Use gnu.java.security.hash.MD5.
       * java/lang/Math.java: New override file.
       * java/lang/Character.java: Merged from Classpath.
       (start, end): Now 'int's.
       (canonicalName): New field.
       (CANONICAL_NAME, NO_SPACES_NAME, CONSTANT_NAME): New constants.
       (UnicodeBlock): Added argument.
       (of): New overload.
       (forName): New method.
       Updated unicode blocks.
       (sets): Updated.
       * sources.am: Regenerated.
       * Makefile.in: Likewise.

From-SVN: r111942

libjava/classpath/java/io/InputStreamReader.java

@@ -1,5 +1,6 @@
 /* InputStreamReader.java -- Reader than transforms bytes to chars
-   Copyright (C) 1998, 1999, 2001, 2003, 2004, 2005  Free Software Foundation, Inc.
+   Copyright (C) 1998, 1999, 2001, 2003, 2004, 2005, 2006
+   Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -38,6 +39,7 @@ exception statement from your version. */
 
 package java.io;
 
+import gnu.classpath.SystemProperties;
 import gnu.java.nio.charset.EncodingHelper;
 
 import java.nio.ByteBuffer;
@@ -145,7 +147,7 @@ public class InputStreamReader extends Reader
     this.in = in;
     try 
 	{ 
-	  encoding = System.getProperty("file.encoding");
+	  encoding = SystemProperties.getProperty("file.encoding");
 	  // Don't use NIO if avoidable
 	  if(EncodingHelper.isISOLatin1(encoding))
 	    {
@@ -231,12 +233,20 @@ public class InputStreamReader extends Reader
    * charset to decode the bytes in the InputStream into
    * characters.
    * 
-   * @since 1.5
+   * @since 1.4
    */
   public InputStreamReader(InputStream in, Charset charset) {
+    if (in == null)
+      throw new NullPointerException();
     this.in = in;
     decoder = charset.newDecoder();
 
+    try {
+      maxBytesPerChar = charset.newEncoder().maxBytesPerChar();
+    } catch(UnsupportedOperationException _){
+      maxBytesPerChar = 1f;
+    }
+
     decoder.onMalformedInput(CodingErrorAction.REPLACE);
     decoder.onUnmappableCharacter(CodingErrorAction.REPLACE);
     decoder.reset();
@@ -247,9 +257,11 @@ public class InputStreamReader extends Reader
    * Creates an InputStreamReader that uses the given charset decoder
    * to decode the bytes in the InputStream into characters.
    * 
-   * @since 1.5
+   * @since 1.4
    */
   public InputStreamReader(InputStream in, CharsetDecoder decoder) {
+    if (in == null)
+      throw new NullPointerException();
     this.in = in;
     this.decoder = decoder;