Simplified the available() fix.

classpath/ikvm/io/InputStreamWrapper.java

@@ -28,7 +28,7 @@ public final class InputStreamWrapper extends java.io.InputStream
 {
     private cli.System.IO.Stream stream;
     private long markPosition = -1;
-    private int lookAhead = -1;
+    private boolean atEOF;
 
     public InputStreamWrapper(cli.System.IO.Stream stream)
     {
@@ -37,17 +37,16 @@ public final class InputStreamWrapper extends java.io.InputStream
 
     public int read() throws java.io.IOException
     {
-	if (lookAhead != -1)
-	{
-	    int b = lookAhead;
-	    lookAhead = -1;
-	    return b;
-	}
         try
         {
             if (false) throw new cli.System.IO.IOException();
             if (false) throw new cli.System.ObjectDisposedException(null);
-            return stream.ReadByte();
+            int i = stream.ReadByte();
+	    if (i == -1)
+	    {
+		atEOF = true;
+	    }
+	    return i;
         }
         catch (cli.System.IO.IOException x)
         {
@@ -86,21 +85,13 @@ public final class InputStreamWrapper extends java.io.InputStream
         {
             if (false) throw new cli.System.IO.IOException();
             if (false) throw new cli.System.ObjectDisposedException(null);
-	    if (lookAhead != -1)
+	    int count = stream.Read(b, off, len);
+	    if (count == 0)
 	    {
-		b[off] = (byte)lookAhead;
+		atEOF = true;
-		lookAhead = -1;
+		return -1;
-		if (len > 1)
-		{
-		    return stream.Read(b, off + 1, len - 1) + 1;
-		}
-		return 1;
-	    }
-	    else
-	    {
-		int count = stream.Read(b, off, len);
-		return count == 0 ? -1 : count;
 	    }
+	    return count;
         }
         catch (cli.System.IO.IOException x)
         {
@@ -183,22 +174,7 @@ public final class InputStreamWrapper extends java.io.InputStream
 	    // return value as a cue to continue reading.
 	    // As suggested by Mark Reinhold, we emulate InflaterInputStream's behavior
 	    // and return 0 after we've reached EOF and otherwise 1.
-	    if (lookAhead == -1)
+	    return atEOF ? 0 : 1;
-	    {
-		try
-		{
-		    if (false) throw new cli.System.IO.IOException();
-		    if (false) throw new cli.System.ObjectDisposedException(null);
-		    lookAhead = stream.ReadByte();
-		}
-		catch (cli.System.IO.IOException x)
-		{
-		}
-		catch (cli.System.ObjectDisposedException x)
-		{
-		}
-	    }
-	    return lookAhead == -1 ? 0 : 1;
         }
     }