diff options
Diffstat (limited to 'libjava/sun/reflect/misc')
| -rw-r--r-- | libjava/sun/reflect/misc/ReflectUtil$MustBeNull.h | 32 | ||||
| -rw-r--r-- | libjava/sun/reflect/misc/ReflectUtil.h | 35 | ||||
| -rw-r--r-- | libjava/sun/reflect/misc/ReflectUtil.java | 113 |
3 files changed, 180 insertions, 0 deletions
diff --git a/libjava/sun/reflect/misc/ReflectUtil$MustBeNull.h b/libjava/sun/reflect/misc/ReflectUtil$MustBeNull.h new file mode 100644 index 000000000..a2e7494d8 --- /dev/null +++ b/libjava/sun/reflect/misc/ReflectUtil$MustBeNull.h @@ -0,0 +1,32 @@ + +// DO NOT EDIT THIS FILE - it is machine generated -*- c++ -*- + +#ifndef __sun_reflect_misc_ReflectUtil$MustBeNull__ +#define __sun_reflect_misc_ReflectUtil$MustBeNull__ + +#pragma interface + +#include <java/lang/Object.h> +extern "Java" +{ + namespace sun + { + namespace reflect + { + namespace misc + { + class ReflectUtil$MustBeNull; + } + } + } +} + +class sun::reflect::misc::ReflectUtil$MustBeNull : public ::java::lang::Object +{ + + ReflectUtil$MustBeNull(); +public: + static ::java::lang::Class class$; +}; + +#endif // __sun_reflect_misc_ReflectUtil$MustBeNull__ diff --git a/libjava/sun/reflect/misc/ReflectUtil.h b/libjava/sun/reflect/misc/ReflectUtil.h new file mode 100644 index 000000000..91c0b64b2 --- /dev/null +++ b/libjava/sun/reflect/misc/ReflectUtil.h @@ -0,0 +1,35 @@ + +// DO NOT EDIT THIS FILE - it is machine generated -*- c++ -*- + +#ifndef __sun_reflect_misc_ReflectUtil__ +#define __sun_reflect_misc_ReflectUtil__ + +#pragma interface + +#include <java/lang/Object.h> +extern "Java" +{ + namespace sun + { + namespace reflect + { + namespace misc + { + class ReflectUtil; + class ReflectUtil$MustBeNull; + } + } + } +} + +class sun::reflect::misc::ReflectUtil : public ::java::lang::Object +{ + +public: + ReflectUtil(); + static void checkPackageAccess(::java::lang::Class *); + static void ensureMemberAccess(::java::lang::Class *, ::java::lang::Class *, ::sun::reflect::misc::ReflectUtil$MustBeNull *, jint); + static ::java::lang::Class class$; +}; + +#endif // __sun_reflect_misc_ReflectUtil__ diff --git a/libjava/sun/reflect/misc/ReflectUtil.java b/libjava/sun/reflect/misc/ReflectUtil.java new file mode 100644 index 000000000..88a6f2515 --- /dev/null +++ b/libjava/sun/reflect/misc/ReflectUtil.java @@ -0,0 +1,113 @@ +/* ReflectUtil.java - JSR 166 reflection hooks + Copyright (C) 2006 Free Software Foundation + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath 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 for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + +package sun.reflect.misc; + +import java.lang.reflect.Modifier; + +public class ReflectUtil +{ + // We use this inaccessible inner class as an argument type + // in verifyMemberAccess. All current users of this method + // in the JSR 166 RI pass 'null' for this argument, and + // consequently we don't know what it means. Using a funny + // type like this for the argument means that if the RI changes, + // we will see a compilation error. + private static class MustBeNull + { + } + + /** + * Check if the current thread is allowed to access the package of + * the declaringClass. + * + * @param declaringClass class name to check access to + * @throws SecurityException if permission is denied + * @throws NullPointerException if declaringClass is null + */ + public static void checkPackageAccess(Class declaringClass) + { + SecurityManager sm; + if ((sm = System.getSecurityManager()) != null) + { + while (declaringClass.isArray()) + declaringClass = declaringClass.getComponentType(); + String name = declaringClass.getName(); + int i = name.lastIndexOf('.'); + if (i != -1) // if declaringClass is a member of a package + { + name = name.substring(0, i); + sm.checkPackageAccess(name); + } + } + } + + /** + * Perform access checks on a member of a class. This API is + * derived from the public domain code in the JSR 166 reference + * implementation. + * @param caller the class requesting access to the member + * @param declarer the declaring class of the member + * @param ignored unknown parameter; always null + * @param modifiers the modifiers on the member + * @return true if access is granted, false otherwise + */ + public static void ensureMemberAccess(Class caller, + Class declarer, + MustBeNull ignored, + int modifiers) + { + // Same class, always ok. + if (caller == declarer) + return; + // Public access is ok. + if ((modifiers & Modifier.PUBLIC) != 0) + return; + // Protected access and request comes from + // a subclass of the declarer -- ok. + if ((modifiers & Modifier.PROTECTED) != 0 + && declarer.isAssignableFrom(caller)) + return; + // Package-private access, or protected access, + // and the packages are the same --ok. + if ((modifiers & Modifier.PRIVATE) == 0 + && caller.getPackage() == declarer.getPackage()) + return; + // Otherwise, no. + throw new IllegalAccessError(); + } +} |