WEB-703 (firefox is not yet tested, windows is also untested)

platform/platform-api/src/com/intellij/openapi/vfs/VfsUtil.java

@@ -50,6 +50,8 @@ public class VfsUtil extends VfsUtilCore {
   private static final Logger LOG = Logger.getInstance("#com.intellij.openapi.vfs.VfsUtil");
   public static final char VFS_PATH_SEPARATOR = '/';
 
+  private static final String LOCALHOST_URI_PATH_PREFIX = "localhost/";
+
   public static void saveText(@NotNull VirtualFile file, @NotNull String text) throws IOException {
     Charset charset = file.getCharset();
     file.setBinaryContent(text.getBytes(charset.name()));
@@ -464,16 +466,32 @@ public class VfsUtil extends VfsUtilCore {
   }
 
   @NotNull
-  public static String fixURLforIDEA(@NotNull String url ) {
+  public static String fixURLforIDEA(@NotNull String url) {
+    // removeLocalhostPrefix - false due to backward compatibility reasons
+    return toIdeaUrl(url, false);
+  }
+
+  @NotNull
+  public static String toIdeaUrl(@NotNull String url) {
+    return toIdeaUrl(url, true);
+  }
+
+  @NotNull
+  public static String toIdeaUrl(@NotNull String url, boolean removeLocalhostPrefix) {
     int idx = url.indexOf(":/");
-    if( idx >= 0 && idx+2 < url.length() && url.charAt(idx+2) != '/' ) {
+    if (idx >= 0 && idx + 2 < url.length() && url.charAt(idx + 2) != '/') {
       String prefix = url.substring(0, idx);
-      String suffix = url.substring(idx+2);
+      String suffix = url.substring(idx + 2);
 
       if (SystemInfo.isWindows) {
-        url = prefix+"://"+suffix;
-      } else {
-        url = prefix+":///"+suffix;
+        return prefix + "://" + suffix;
+      }
+      else if (removeLocalhostPrefix && prefix.equals(StandardFileSystems.FILE_PROTOCOL) && suffix.startsWith(LOCALHOST_URI_PATH_PREFIX)) {
+        // sometimes (e.g. in Google Chrome for Mac) local file url is prefixed with 'localhost' so we need to remove it
+        return prefix + ":///" + suffix.substring(LOCALHOST_URI_PATH_PREFIX.length());
+      }
+      else {
+        return prefix + ":///" + suffix;
       }
     }
     return url;

platform/util/src/com/intellij/util/io/URLUtil.java

@@ -16,14 +16,14 @@
 
 package com.intellij.util.io;
 
+import com.google.common.base.Charsets;
 import com.intellij.openapi.util.io.FileUtil;
+import gnu.trove.TIntArrayList;
 import org.jetbrains.annotations.NonNls;
 import org.jetbrains.annotations.NotNull;
 
 import java.io.*;
 import java.net.URL;
-import java.util.ArrayList;
-import java.util.List;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipFile;
 
@@ -103,7 +103,7 @@ public class URLUtil {
     while (i < len) {
       char c = s.charAt(i);
       if (c == '%') {
-        List<Integer> bytes = new ArrayList<Integer>();
+        TIntArrayList bytes = new TIntArrayList();
         while (i + 2 < len && s.charAt(i) == '%') {
           final int d1 = decode(s.charAt(i + 1));
           final int d2 = decode(s.charAt(i + 2));
@@ -118,14 +118,10 @@ public class URLUtil {
         if (!bytes.isEmpty()) {
           final byte[] bytesArray = new byte[bytes.size()];
           for (int j = 0; j < bytes.size(); j++) {
-            bytesArray[j] = (byte)bytes.get(j).intValue();
-          }
-          try {
-            decoded.append(new String(bytesArray, "UTF-8"));
-            continue;
-          }
-          catch (UnsupportedEncodingException ignored) {
+            bytesArray[j] = (byte)bytes.getQuick(j);
           }
+          decoded.append(new String(bytesArray, Charsets.UTF_8));
+          continue;
         }
       }
 

platform/util/util.iml

@@ -20,6 +20,15 @@
     <orderEntry type="library" name="OroMatcher" level="project" />
     <orderEntry type="library" scope="TEST" name="JUnit4" level="project" />
     <orderEntry type="library" scope="TEST" name="Groovy" level="project" />
+    <orderEntry type="module-library">
+      <library>
+        <CLASSES>
+          <root url="jar://$MODULE_DIR$/../../plugins/gradle/lib/guava-11.0.2.jar!/" />
+        </CLASSES>
+        <JAVADOC />
+        <SOURCES />
+      </library>
+    </orderEntry>
   </component>
   <component name="copyright">
     <Base>