--- /dev/null	2015-04-26 06:51:08.003313989 -0700
+++ new/jdk/src/jdk.jline/share/classes/jdk/internal/jline/console/completer/StringsCompleter.java	2015-06-18 03:04:44.347661597 -0700
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2002-2012, the original author or authors.
+ *
+ * This software is distributable under the BSD license. See the terms of the
+ * BSD license in the documentation provided with this software.
+ *
+ * http://www.opensource.org/licenses/bsd-license.php
+ */
+package jdk.internal.jline.console.completer;
+
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.List;
+import java.util.SortedSet;
+import java.util.TreeSet;
+
+import static jdk.internal.jline.internal.Preconditions.checkNotNull;
+
+/**
+ * Completer for a set of strings.
+ *
+ * @author <a href="mailto:jason@planet57.com">Jason Dillon</a>
+ * @since 2.3
+ */
+public class StringsCompleter
+    implements Completer
+{
+    private final SortedSet<String> strings = new TreeSet<String>();
+
+    public StringsCompleter() {
+        // empty
+    }
+
+    public StringsCompleter(final Collection<String> strings) {
+        checkNotNull(strings);
+        getStrings().addAll(strings);
+    }
+
+    public StringsCompleter(final String... strings) {
+        this(Arrays.asList(strings));
+    }
+
+    public Collection<String> getStrings() {
+        return strings;
+    }
+
+    public int complete(final String buffer, final int cursor, final List<CharSequence> candidates) {
+        // buffer could be null
+        checkNotNull(candidates);
+
+        if (buffer == null) {
+            candidates.addAll(strings);
+        }
+        else {
+            for (String match : strings.tailSet(buffer)) {
+                if (!match.startsWith(buffer)) {
+                    break;
+                }
+
+                candidates.add(match);
+            }
+        }
+
+        if (candidates.size() == 1) {
+            candidates.set(0, candidates.get(0) + " ");
+        }
+
+        return candidates.isEmpty() ? -1 : 0;
+    }
+}