1 files changed, 49 insertions, 0 deletions
diff --git a/bundles/org.eclipse.equinox.preferences/src/org/eclipse/core/internal/preferences/SortedProperties.java b/bundles/org.eclipse.equinox.preferences/src/org/eclipse/core/internal/preferences/SortedProperties.java
new file mode 100644
index 000000000..88fd878b1
--- /dev/null
+++ b/bundles/org.eclipse.equinox.preferences/src/org/eclipse/core/internal/preferences/SortedProperties.java
@@ -0,0 +1,49 @@
+/*******************************************************************************
+ * Copyright (c) 2004, 2015 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Jan-Ove Weichel (janove.weichel@vogella.com) - bug 474359
+ *******************************************************************************/
+package org.eclipse.core.internal.preferences;
+
+import java.util.*;
+import java.util.Map.Entry;
+
+public class SortedProperties extends Properties {
+
+	private static final long serialVersionUID = 1L;
+
+	public SortedProperties() {
+		super();
+	}
+
+
+	@Override
+	public synchronized Enumeration<Object> keys() {
+		TreeSet<Object> set = new TreeSet<>();
+		for (Enumeration<?> e = super.keys(); e.hasMoreElements();)
+			set.add(e.nextElement());
+		return Collections.enumeration(set);
+	}
+
+
+	@Override
+	public Set<Entry<Object, Object>> entrySet() {
+		TreeSet<Entry<Object, Object>> set = new TreeSet<>(new Comparator<Entry<Object, Object>>() {
+			@Override
+			public int compare(Entry<Object, Object> e1, Entry<Object, Object> e2) {
+				String s1 = (String) e1.getKey();
+				String s2 = (String) e2.getKey();
+				return s1.compareTo(s2);
+			}
+		});
+		for (Iterator<Entry<Object, Object>> i = super.entrySet().iterator(); i.hasNext();)
+			set.add(i.next());
+		return set;
+	}
+}
+\ No newline at end of file