[IO-886] Fixed incorrect regular expression in

PathUtils.RelativeSortedPaths.extractKey(String, String). #828

Javadoc

Author: garydgregory

src/changes/changes.xml

@@ -59,6 +59,8 @@ The <action> type attribute can be add,update,fix,remove.
       <action type="fix" dev="ggregory" due-to="Gary Gregory">ThrottledInputStream.throttle() doesn't preserve the original InterruptedException as the cause of its InterruptedIOException.</action>
       <action type="fix" dev="ggregory" due-to="Gary Gregory">All thread names are now prefixed with "commons-io-".</action>
       <action type="fix" dev="ggregory" due-to="Kishor, Mashrur Mia" issue="IO-639">ReversedLinesFileReader does not read first line if its empty #829.</action>
+      <action type="fix" dev="ggregory" due-to="Peter De Maeyer" issue="IO-886">Fixed incorrect regular expression in PathUtils.RelativeSortedPaths.extractKey(String, String).</action>
+      
       <!-- ADD -->
       <action type="add" dev="ggregory" due-to="Gary Gregory, Piotr P. Karwasz">Add and use IOUtils.closeQuietlySuppress(Closeable, Throwable) #818.</action>
       <!-- UPDATE -->

src/main/java/org/apache/commons/io/file/PathUtils.java

@@ -137,8 +137,14 @@ private static boolean equalsIgnoreFileSystem(final Path path1, final Path path2
             return extractKey(separator1, string1).equals(extractKey(separator2, string2));
         }
 
+        /**
+         * Replaces the file separator in a path string with a string that is not legal in a path on Windows, Linux, and macOS.
+         *
+         * @param separator the file separator.
+         * @param string a path.
+         * @return a key.
+         */
         static String extractKey(final String separator, final String string) {
-            // Replace the file separator in a path string with a string that is not legal in a path on Windows, Linux, and macOS.
             return string.replace(separator, ">");
         }