4 files changed, 32 insertions, 15 deletions
diff --git a/libjava/classpath/java/io/InputStream.java b/libjava/classpath/java/io/InputStream.java
index 86d1cd7..e56197a 100644
--- a/libjava/classpath/java/io/InputStream.java
+++ b/libjava/classpath/java/io/InputStream.java
@@ -193,10 +193,8 @@ public abstract class InputStream
    */
   public int read(byte[] b, int off, int len) throws IOException
   {
-    if (off < 0 || len < 0 || off + len > b.length)
+    if (off < 0 || len < 0 || b.length - off < len)
       throw new IndexOutOfBoundsException();
-    if (b.length == 0)
-      return 0;
 
     int i, ch;
 
diff --git a/libjava/classpath/java/io/InputStreamReader.java b/libjava/classpath/java/io/InputStreamReader.java
index ef8fd45..936a03c 100644
--- a/libjava/classpath/java/io/InputStreamReader.java
+++ b/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;
 
diff --git a/libjava/classpath/java/io/ObjectInputStream.java b/libjava/classpath/java/io/ObjectInputStream.java
index 750c698..91832f9 100644
--- a/libjava/classpath/java/io/ObjectInputStream.java
+++ b/libjava/classpath/java/io/ObjectInputStream.java
@@ -1,5 +1,5 @@
 /* ObjectInputStream.java -- Class used to read serialized objects
-   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2005
+   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2005, 2006
    Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
@@ -555,8 +555,7 @@ public class ObjectInputStream extends InputStream
     classLookupTable.put(clazz, osc);
     setBlockDataMode(oldmode);
 
-    // find the first non-serializable, non-abstract
-    // class in clazz's inheritance hierarchy
+    // find the first non-serializable class in clazz's inheritance hierarchy
     Class first_nonserial = clazz.getSuperclass();
     // Maybe it is a primitive class, those don't have a super class,
     // or Object itself.  Otherwise we can keep getting the superclass
@@ -565,9 +564,8 @@ public class ObjectInputStream extends InputStream
     if (first_nonserial == null)
       first_nonserial = clazz;
     else
-      while (Serializable.class.isAssignableFrom(first_nonserial)
-	     || Modifier.isAbstract(first_nonserial.getModifiers()))
-	first_nonserial = first_nonserial.getSuperclass();
+      while (Serializable.class.isAssignableFrom(first_nonserial))
+        first_nonserial = first_nonserial.getSuperclass();
 
     final Class local_constructor_class = first_nonserial;
 
@@ -1596,7 +1594,14 @@ public class ObjectInputStream extends InputStream
 
   private void readNextBlock() throws IOException
   {
-    readNextBlock(this.realInputStream.readByte());
+    byte marker = this.realInputStream.readByte();
+    while (marker == TC_RESET)
+      {
+        if(dump) dumpElementln("RESET");
+        clearHandles();
+        marker = this.realInputStream.readByte();
+      }
+    readNextBlock(marker);
   }
 
   private void readNextBlock(byte marker) throws IOException
diff --git a/libjava/classpath/java/io/ObjectOutputStream.java b/libjava/classpath/java/io/ObjectOutputStream.java
index 961d5e3..55a12e4 100644
--- a/libjava/classpath/java/io/ObjectOutputStream.java
+++ b/libjava/classpath/java/io/ObjectOutputStream.java
@@ -1,5 +1,5 @@
 /* ObjectOutputStream.java -- Class used to write serialized objects
-   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
+   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
    Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
@@ -421,6 +421,8 @@ public class ObjectOutputStream extends OutputStream
 	for (int i = 0; i < intfs.length; i++)
 	  realOutput.writeUTF(intfs[i].getName());
 
+        assignNewHandle(osc);
+    
         boolean oldmode = setBlockDataMode(true);
         annotateProxyClass(osc.forClass());
         setBlockDataMode(oldmode);