src/jdk.xml.bind/share/classes/com/sun/tools/internal/xjc/XJCFacade.java
changeset 47216 71c04702a3d5
parent 25871 b80b84e87032
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.xml.bind/share/classes/com/sun/tools/internal/xjc/XJCFacade.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 1997, 2013, 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.io.Closeable;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.net.URLClassLoader;
+
+/**
+ * A shabby driver to invoke XJC1 or XJC2 depending on the command line switch.
+ *
+ * <p>
+ * This class is compiled with -source 1.2 so that we can report a nice
+ * user-friendly "you require Tiger" error message.
+ *
+ * @author Kohsuke Kawaguchi
+ */
+public class XJCFacade {
+
+    private static final String JDK6_REQUIRED = "XJC requires JDK 6.0 or later. Please download it from http://www.oracle.com/technetwork/java/javase/downloads";
+
+    public static void main(String[] args) throws Throwable {
+        String v = "2.0";      // by default, we go 2.0
+
+        for (int i = 0; i < args.length; i++) {
+            if (args[i].equals("-source")) {
+                if (i + 1 < args.length) {
+                    v = parseVersion(args[i + 1]);
+                }
+            }
+        }
+
+        ClassLoader oldContextCl = SecureLoader.getContextClassLoader();
+        try {
+            ClassLoader cl = ClassLoaderBuilder.createProtectiveClassLoader(SecureLoader.getClassClassLoader(XJCFacade.class), v);
+            SecureLoader.setContextClassLoader(cl);
+            Class<?> driver = cl.loadClass("com.sun.tools.internal.xjc.Driver");
+            Method mainMethod = driver.getDeclaredMethod("main", new Class[]{String[].class});
+            try {
+                mainMethod.invoke(null, new Object[]{args});
+            } catch (InvocationTargetException e) {
+                if (e.getTargetException() != null) {
+                    throw e.getTargetException();
+                }
+            }
+        } catch (UnsupportedClassVersionError e) {
+            System.err.println(JDK6_REQUIRED);
+        } finally {
+            ClassLoader cl = SecureLoader.getContextClassLoader();
+            SecureLoader.setContextClassLoader(oldContextCl);
+
+            //close/cleanup all classLoaders but the one which loaded this class
+            while (cl != null && !oldContextCl.equals(cl)) {
+                if (cl instanceof Closeable) {
+                    //JDK7+, ParallelWorldClassLoader
+                    ((Closeable) cl).close();
+                } else {
+                    if (cl instanceof URLClassLoader) {
+                        //JDK6 - API jars are loaded by instance of URLClassLoader
+                        //so use proprietary API to release holded resources
+                        try {
+                            Class<?> clUtil = oldContextCl.loadClass("sun.misc.ClassLoaderUtil");
+                            Method release = clUtil.getDeclaredMethod("releaseLoader", URLClassLoader.class);
+                            release.invoke(null, cl);
+                        } catch (ClassNotFoundException ex) {
+                            //not Sun JDK 6, ignore
+                            System.err.println(JDK6_REQUIRED);
+                        }
+                    }
+                }
+                cl = SecureLoader.getParentClassLoader(cl);
+            }
+        }
+    }
+
+    public static String parseVersion(String version) {
+        // no other versions supported as of now
+        return "2.0";
+    }
+}