* java/text/CollationKey.java: Implement Comparable.

	(compareTo(Object)): New method.
	* java/text/Collator.java (compare(Object,Object)): New method.
	Implement Comparator.

	* java/util/zip/InflaterInputStream.java (available): New method.
	(close): New method.
	(read, available, skip, fill): Throw exception if stream closed.
	* java/util/zip/ZipInputStream.java (read, skip, readFully, fill,
	getNextEntry): Throw exception if closed.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@37525 138bc75d-0d04-0410-961f-82ee72b054a4

2 files changed, 35 insertions, 7 deletions

diff --git a/libjava/java/util/zip/InflaterInputStream.java b/libjava/java/util/zip/InflaterInputStream.java
index e09f208349a..3db1b2a1eb3 100644
--- a/libjava/java/util/zip/InflaterInputStream.java
+++ b/libjava/java/util/zip/InflaterInputStream.java
@@ -1,6 +1,6 @@
 // InflaterInputStream.java - Input stream filter for decompressing.
 
-/* Copyright (C) 1999  Free Software Foundation
+/* Copyright (C) 1999, 2000  Free Software Foundation
 
    This file is part of libgcj.
 
@@ -28,6 +28,8 @@ public class InflaterInputStream extends FilterInputStream
 {
   protected void fill () throws IOException
   {
+    if (inf == null)
+      throw new IOException ("stream closed");
     len = in.read(buf, 0, buf.length);
     if (len != -1)
       inf.setInput(buf, 0, len);
@@ -61,6 +63,8 @@ public class InflaterInputStream extends FilterInputStream
 
   public int read (byte[] buf, int off, int len) throws IOException
   {
+    if (inf == null)
+      throw new IOException ("stream closed");
     if (inf.finished())
       return -1;
     if (inf.needsInput())
@@ -79,8 +83,26 @@ public class InflaterInputStream extends FilterInputStream
       }
   }
 
+  public void close () throws IOException
+  {
+    inf = null;
+    super.close ();
+  }
+
+  public int available () throws IOException
+  {
+    // According to the JDK 1.2 docs, this should only ever return 0
+    // or 1 and should not be relied upon by Java programs.
+    if (inf == null)
+      throw new IOException ("stream closed");
+    return inf.finished () ? 0 : 1;
+  }
+
   public long skip (long n) throws IOException
   {
+    if (inf == null)
+      throw new IOException ("stream closed");
+
     if (n == 0)
       return 0;
 
diff --git a/libjava/java/util/zip/ZipInputStream.java b/libjava/java/util/zip/ZipInputStream.java
index 79efb59f06c..b50cc7be592 100644
--- a/libjava/java/util/zip/ZipInputStream.java
+++ b/libjava/java/util/zip/ZipInputStream.java
@@ -35,6 +35,8 @@ public class ZipInputStream extends InflaterInputStream implements ZipConstants
 
   public ZipEntry getNextEntry () throws IOException
   {
+    if (closed)
+      throw new IOException ("stream closed");
     if (current != null)
       closeEntry();
     if (in.read() != 'P'
@@ -112,6 +114,8 @@ public class ZipInputStream extends InflaterInputStream implements ZipConstants
   // back data.
   protected void fill () throws IOException
   {
+    if (closed)
+      throw new IOException ("stream closed");
     int count = buf.length;
     if (count > compressed_bytes)
       count = compressed_bytes;
@@ -127,9 +131,11 @@ public class ZipInputStream extends InflaterInputStream implements ZipConstants
   {
     return new ZipEntry (name);
   }
-  
+
   public int read (byte[] b, int off, int len)  throws IOException
   {
+    if (closed)
+      throw new IOException ("stream closed");
     if (len > avail)
       len = avail;
     int count;
@@ -149,6 +155,8 @@ public class ZipInputStream extends InflaterInputStream implements ZipConstants
 
   public long skip (long n)  throws IOException
   {
+    if (closed)
+      throw new IOException ("stream closed");
     if (n > avail)
       n = avail;
     long count;
@@ -160,11 +168,9 @@ public class ZipInputStream extends InflaterInputStream implements ZipConstants
     return count;
   }
 
-  public int available() {
-    if (closed)
-      return 0;
-    else
-      return 1;
+  public int available()
+  {
+    return closed ? 0 : 1;
   }
 
   private void readFully (byte[] b)  throws IOException