--- /dev/null	2014-09-09 10:04:11.456571844 +0200
+++ new/make/src/classes/build/tools/module/Module.java	2014-09-15 12:29:06.684366894 +0200
@@ -0,0 +1,178 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package build.tools.module;
+
+import java.util.*;
+
+public class Module {
+    static class Dependence {
+        final String name;
+        final boolean reexport;
+        Dependence(String name) {
+            this(name, false);
+        }
+        Dependence(String name, boolean reexport) {
+            this.name = name;
+            this.reexport = reexport;
+        }
+
+        public String name() {
+            return name;
+        }
+
+        @Override
+        public int hashCode() {
+            int hash = 5;
+            hash = 11 * hash + Objects.hashCode(this.name);
+            hash = 11 * hash + (this.reexport ? 1 : 0);
+            return hash;
+        }
+
+        public boolean equals(Object o) {
+            Dependence d = (Dependence)o;
+            return this.name.equals(d.name) && this.reexport == d.reexport;
+        }
+    }
+    private final String moduleName;
+    private final Set<Dependence> requires;
+    private final Map<String, Set<String>> exports;
+    private final Set<String> packages;
+
+    private Module(String name,
+            Set<Dependence> requires,
+            Map<String, Set<String>> exports,
+            Set<String> packages) {
+        this.moduleName = name;
+        this.requires = Collections.unmodifiableSet(requires);
+        this.exports = Collections.unmodifiableMap(exports);
+        this.packages = Collections.unmodifiableSet(packages);
+    }
+
+    public String name() {
+        return moduleName;
+    }
+
+    public Set<Dependence> requires() {
+        return requires;
+    }
+
+    public Map<String, Set<String>> exports() {
+        return exports;
+    }
+
+    public Set<String> packages() {
+        return packages;
+    }
+
+    @Override
+    public boolean equals(Object ob) {
+        if (!(ob instanceof Module)) {
+            return false;
+        }
+        Module that = (Module) ob;
+        return (moduleName.equals(that.moduleName)
+                && requires.equals(that.requires)
+                && exports.equals(that.exports)
+                && packages.equals(that.packages));
+    }
+
+    @Override
+    public int hashCode() {
+        int hc = moduleName.hashCode();
+        hc = hc * 43 + requires.hashCode();
+        hc = hc * 43 + exports.hashCode();
+        hc = hc * 43 + packages.hashCode();
+        return hc;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        sb.append("module ").append(moduleName).append(" {").append("\n");
+        requires.stream().sorted().forEach(d ->
+                sb.append(String.format("   requires %s%s%n", d.reexport ? "public " : "", d.name)));
+        exports.entrySet().stream().filter(e -> e.getValue().isEmpty())
+                .sorted(Map.Entry.comparingByKey())
+                .forEach(e -> sb.append(String.format("   exports %s%n", e.getKey())));
+        exports.entrySet().stream().filter(e -> !e.getValue().isEmpty())
+                .sorted(Map.Entry.comparingByKey())
+                .forEach(e -> sb.append(String.format("   exports %s to %s%n", e.getKey(), e.getValue())));
+        packages.stream().sorted().forEach(pn -> sb.append(String.format("   includes %s%n", pn)));
+        sb.append("}");
+        return sb.toString();
+    }
+
+    static class Builder {
+        private String name;
+        private final Set<Dependence> requires = new HashSet<>();
+        private final Map<String, Set<String>> exports = new HashMap<>();
+        private final Set<String> packages = new HashSet<>();
+
+        public Builder() {
+        }
+
+        public Builder(Module module) {
+            name = module.name();
+            requires.addAll(module.requires());
+            exports.putAll(module.exports());
+            packages.addAll(module.packages());
+        }
+
+        public Builder name(String n) {
+            name = n;
+            return this;
+        }
+
+        public Builder require(String d, boolean reexport) {
+            requires.add(new Dependence(d, reexport));
+            return this;
+        }
+
+        public Builder include(String p) {
+            packages.add(p);
+            return this;
+        }
+
+        public Builder export(String p) {
+            return exportTo(p, Collections.emptySet());
+        }
+
+        public Builder exportTo(String p, Set<String> ms) {
+            Objects.requireNonNull(p);
+            Objects.requireNonNull(ms);
+            if (exports.containsKey(p)) {
+                throw new RuntimeException(name + " already exports " + p);
+            }
+            exports.put(p, new HashSet<>(ms));
+            return this;
+        }
+
+        public Module build() {
+            Module m = new Module(name, requires, exports, packages);
+            return m;
+        }
+    }
+}