jdk

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/*
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 * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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package java.lang;
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import java.lang.module.ModuleDescriptor;
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/**
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 * A helper class intended to be injected into java.lang using the
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 * java --patch-module option. The helper class provides access to package private
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 * methods in java.lang.Module.
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 */
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public final class ModuleHelper {
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    private ModuleHelper() { }
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    /**
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     * Creates a named module but without defining the module to the VM.
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     */
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    public static Module newModule(ClassLoader loader, ModuleDescriptor descriptor) {
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        return new Module(loader, descriptor);
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    }
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    /**
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     * Updates module {@code from} to that it reads module {@code to} without
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     * notifying the VM.
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     */
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    public static void addReadsNoSync(Module from, Module to) {
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        from.implAddReadsNoSync(to);
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    }
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    /**
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     * Updates module {@code from} so that it exports package {@code pkg}
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     * to module {@code to} but without notifying the VM. If {@code to} is
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     * {@code null} then the package is exported unconditionally.
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     */
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    public static void addExportsNoSync(Module from, String pkg, Module to) {
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        if (to == null) {
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            from.implAddExportsNoSync(pkg);
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        } else {
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            from.implAddExportsNoSync(pkg, to);
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        }
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    }
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}
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