feat(jdk8): move files to new folder to avoid resources compiled.

jdkSrc/jdk8/com/sun/tools/internal/xjc/ClassLoaderBuilder.java

@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 1997, 2012, 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 com.sun.tools.internal.xjc;
+
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import javax.xml.bind.JAXBContext;
+
+import com.sun.istack.internal.tools.MaskingClassLoader;
+import com.sun.istack.internal.tools.ParallelWorldClassLoader;
+
+/**
+ * Creates a class loader configured to run XJC 1.0/2.0 safely without
+ * interference with JAXB 2.0 API in Mustang.
+ *
+ * @author Kohsuke Kawaguchi
+ */
+class ClassLoaderBuilder {
+
+    /**
+     * Creates a new class loader that eventually delegates to the given {@link ClassLoader}
+     * such that XJC can be loaded by using this classloader.
+     *
+     * @param v
+     *      Either "1.0" or "2.0", indicating the version of the -source value.
+     */
+    protected static ClassLoader createProtectiveClassLoader(ClassLoader cl, String v) throws ClassNotFoundException, MalformedURLException {
+        if(noHack)  return cl;  // provide an escape hatch
+
+        boolean mustang = false;
+
+        if (SecureLoader.getClassClassLoader(JAXBContext.class) == null) {
+            // JAXB API is loaded from the bootstrap. We need to override one with ours
+            mustang = true;
+
+            List<String> mask = new ArrayList<String>(Arrays.asList(maskedPackages));
+            mask.add("javax.xml.bind.");
+
+            cl = new MaskingClassLoader(cl,mask);
+
+            URL apiUrl = cl.getResource("javax/xml/bind/JAXBPermission.class");
+            if(apiUrl==null)
+                throw new ClassNotFoundException("There's no JAXB 2.2 API in the classpath");
+
+            cl = new URLClassLoader(new URL[]{ParallelWorldClassLoader.toJarUrl(apiUrl)},cl);
+        }
+
+        //Leave XJC2 in the publicly visible place
+        // and then isolate XJC1 in a child class loader,
+        // then use a MaskingClassLoader
+        // so that the XJC2 classes in the parent class loader
+        //  won't interfere with loading XJC1 classes in a child class loader
+
+        if ("1.0".equals(v)) {
+            if(!mustang)
+                // if we haven't used Masking ClassLoader, do so now.
+                cl = new MaskingClassLoader(cl,toolPackages);
+            cl = new ParallelWorldClassLoader(cl,"1.0/");
+        } else {
+            if(mustang)
+                // the whole RI needs to be loaded in a separate class loader
+                cl = new ParallelWorldClassLoader(cl,"");
+        }
+
+        return cl;
+    }
+
+
+    /**
+     * The list of package prefixes we want the
+     * {@link MaskingClassLoader} to prevent the parent
+     * classLoader from loading
+     */
+    private static String[] maskedPackages = new String[]{
+        // toolPackages + alpha
+        "com.sun.tools.",
+        "com.sun.codemodel.internal.",
+        "com.sun.relaxng.",
+        "com.sun.xml.internal.xsom.",
+        "com.sun.xml.internal.bind.",
+    };
+
+    private static String[] toolPackages = new String[]{
+        "com.sun.tools.",
+        "com.sun.codemodel.internal.",
+        "com.sun.relaxng.",
+        "com.sun.xml.internal.xsom."
+    };
+
+    /**
+     * Escape hatch in case this class loader hack breaks.
+     */
+    public static final boolean noHack = Boolean.getBoolean(XJCFacade.class.getName()+".nohack");
+}