re PR libgcj/7416 (java.security startup refs "GNU libgcj.security")

Fix for PR libgcj/7416:
	* javax/naming/InitialContext.java (init): Use
	gnu.classpath.home.url.
	* java/security/Security.java: Use new properties.
	(loadProviders): Accept base url; use it.
	* java/lang/System.java: Document gnu.classpath.vm.shortname, and
	gnu.classpath.home.url.
	(gnu.classpath.home.url): Define.
	(gnu.classpath.vm.shortname): Likewise.

From-SVN: r60722

libjava/java/lang/System.java

@@ -73,15 +73,32 @@ public final class System
       loadLibrary("javalang");
 
     Properties defaultProperties = Runtime.defaultProperties;
-    defaultProperties.put("gnu.cpu.endian",
-                          isWordsBigEndian() ? "big" : "little");
 
+    // Set base URL if not already set.
+    if (defaultProperties.get("gnu.classpath.home.url") == null)
+      defaultProperties.put("gnu.classpath.home.url",
+			    "file://"
+			    + defaultProperties.get("gnu.classpath.home")
+			    + "/lib");
+
+    // Set short name if not already set.
+    if (defaultProperties.get("gnu.classpath.vm.shortname") == null)
+      {
+	String value = defaultProperties.getProperty("java.vm.name");
+	int index = value.lastIndexOf(' ');
+	if (index != -1)
+	  value = value.substring(index + 1);
+	defaultProperties.put("gnu.classpath.vm.shortname", value);
+      }
+
+    defaultProperties.put("gnu.cpu.endian",
+			  isWordsBigEndian() ? "big" : "little");
     // XXX FIXME - Temp hack for old systems that set the wrong property
     if (defaultProperties.get("java.io.tmpdir") == null)
       defaultProperties.put("java.io.tmpdir",
                             defaultProperties.get("java.tmpdir"));
   }
-    
+
   /**
    * Stores the current system properties. This can be modified by
    * {@link #setProperties(Properties)}, but will never be null, because
@@ -101,7 +118,7 @@ public final class System
    * however.
    */
   public static final InputStream in
-    = new BufferedInputStream (new FileInputStream(FileDescriptor.in));
+    = new BufferedInputStream(new FileInputStream(FileDescriptor.in));
   /**
    * The standard output PrintStream.  This is assigned at startup and
    * starts its life perfectly valid. Although it is marked final, you can
@@ -113,7 +130,7 @@ public final class System
    * you, however.
    */
   public static final PrintStream out
-    = new PrintStream(new BufferedOutputStream (new FileOutputStream(FileDescriptor.out)), true);
+    = new PrintStream(new BufferedOutputStream(new FileOutputStream(FileDescriptor.out)), true);
   /**
    * The standard output PrintStream.  This is assigned at startup and
    * starts its life perfectly valid. Although it is marked final, you can
@@ -125,7 +142,7 @@ public final class System
    * you, however.
    */
   public static final PrintStream err
-    = new PrintStream(new BufferedOutputStream (new FileOutputStream(FileDescriptor.err)), true);
+    = new PrintStream(new BufferedOutputStream(new FileOutputStream(FileDescriptor.err)), true);
 
   /**
    * This class is uninstantiable.
@@ -312,6 +329,10 @@ public final class System
    * In addition, gnu defines several other properties, where ? stands for
    * each character in '0' through '9':
    * <dl>
+   * <dl> gnu.classpath.vm.shortname <dd> Succinct version of the VM name;
+   *      used for finding property files in file system
+   * <dl> gnu.classpath.home.url <dd> Base URL; used for finding
+   *      property files in file system
    * <dt> gnu.cpu.endian      <dd>big or little
    * <dt> gnu.java.io.encoding_scheme_alias.ISO-8859-?   <dd>8859_?
    * <dt> gnu.java.io.encoding_scheme_alias.iso-8859-?   <dd>8859_?

libjava/java/security/Security.java

@@ -37,9 +37,10 @@ exception statement from your version. */
 
 package java.security;
 import java.io.File;
-import java.io.FileInputStream;
+import java.io.InputStream;
 import java.io.IOException;
 import java.io.FileNotFoundException;
+import java.net.URL;
 import java.security.Provider;
 import java.util.Vector;
 import java.util.Enumeration;
@@ -59,9 +60,9 @@ public final class Security extends Object
 
   static
   {
-    loadProviders(System.getProperty("java.home"),
-		  System.getProperty("java.vm.name"));
-    loadProviders(System.getProperty("gnu.classpath.home"), "classpath");
+    String base = System.getProperty("gnu.classpath.home.url");
+    loadProviders(base, System.getProperty("gnu.classpath.vm.shortname"));
+    loadProviders(base, "classpath");
   }
 
   // This class can't be instantiated.
@@ -69,20 +70,16 @@ public final class Security extends Object
   {
   }
 
-  private static void loadProviders(String dir, String vendor)
+  private static void loadProviders(String baseUrl, String vendor)
   {
-    if (dir == null || vendor == null)
+    if (baseUrl == null || vendor == null)
       return;
 
-    String separator = System.getProperty("file.separator");
-    String secfilestr = (dir +
-			 separator + "lib" +
-			 separator + "security" +
-			 separator + vendor + ".security");
+    String secfilestr = baseUrl + "/security/" + vendor + ".security";
 
     try
       {
-	FileInputStream fin = new FileInputStream(secfilestr);
+	InputStream fin = new URL(secfilestr).openStream();
 	secprops = new Properties();
 	secprops.load(fin);