From 9c309ac9a4e9d7f134c9d1714a355a20baa5dbdb Mon Sep 17 00:00:00 2001
From: Tom Tromey <tromey@redhat.com>
Date: Fri, 13 May 2005 20:20:56 +0000
Subject: [PATCH] SystemClassLoader.java (init): Handle empty element in path.

	* gnu/gcj/runtime/SystemClassLoader.java (init): Handle empty
	element in path.

From-SVN: r99676
---
 libjava/ChangeLog                             |  5 +++
 .../gnu/gcj/runtime/SystemClassLoader.java    | 33 +++++++++++++++++--
 2 files changed, 35 insertions(+), 3 deletions(-)

diff --git a/libjava/ChangeLog b/libjava/ChangeLog
index 469bb76bc2a..93060faf3c8 100644
--- a/libjava/ChangeLog
+++ b/libjava/ChangeLog
@@ -1,3 +1,8 @@
+2005-05-13  Tom Tromey  <tromey@redhat.com>
+
+	* gnu/gcj/runtime/SystemClassLoader.java (init): Handle empty
+	element in path.
+
 2005-05-12  Bryce McKinlay  <mckinlay@redhat.com>
 
 	* include/jvm.h (gcj::verifyClasses): Declare.
diff --git a/libjava/gnu/gcj/runtime/SystemClassLoader.java b/libjava/gnu/gcj/runtime/SystemClassLoader.java
index 163d3dd84d7..e68770cc558 100644
--- a/libjava/gnu/gcj/runtime/SystemClassLoader.java
+++ b/libjava/gnu/gcj/runtime/SystemClassLoader.java
@@ -27,16 +27,30 @@ public final class SystemClassLoader extends URLClassLoader
   // causing a crash.
   void init()
   {
+    String sep = File.pathSeparator;
     StringTokenizer st
       = new StringTokenizer (System.getProperty ("java.class.path", "."),
-			     File.pathSeparator);
+			     sep, true);
+    // Pretend we start with a ':', so if we see a ':' first we add
+    // '.'.
+    boolean last_was_sep = true;
     while (st.hasMoreElements ()) 
       {  
 	String e = st.nextToken ();
 	try
 	  {
-	    if ("".equals(e))
-	      e = ".";
+	    if (sep.equals(e))
+	      {
+		if (last_was_sep)
+		  {
+		    // We saw two separators in a row, so add ".".
+		    addURL(new URL("file", "", -1, "./"));
+		    last_was_sep = false;
+		  }
+		else
+		  last_was_sep = true;
+		continue;
+	      }
 
 	    File path = new File(e);
 	    // Ignore invalid paths.
@@ -53,5 +67,18 @@ public final class SystemClassLoader extends URLClassLoader
 	    throw new RuntimeException(x);
 	  }
       }
+    // If we saw a trailing ":", add "." to the path.
+    if (last_was_sep)
+      {
+	try
+	  {
+	    addURL(new URL("file", "", -1, "./"));
+	  }
+	catch (java.net.MalformedURLException x)
+	  {
+	    // This should never happen.
+	    throw new RuntimeException(x);
+	  }
+      }
   }
 }