67 lines
2.2 KiB
Java
67 lines
2.2 KiB
Java
/*
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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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