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-rw-r--r--libjava/classpath/vm/reference/sun/reflect/Reflection.java51
-rw-r--r--libjava/classpath/vm/reference/sun/reflect/misc/ReflectUtil.java113
2 files changed, 164 insertions, 0 deletions
diff --git a/libjava/classpath/vm/reference/sun/reflect/Reflection.java b/libjava/classpath/vm/reference/sun/reflect/Reflection.java
new file mode 100644
index 000000000..ddbb69d16
--- /dev/null
+++ b/libjava/classpath/vm/reference/sun/reflect/Reflection.java
@@ -0,0 +1,51 @@
+/* Reflection.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;
+
+import gnu.classpath.VMStackWalker;
+
+public class Reflection
+{
+ /**
+ * A stack-walking wrapper method used by the JSR 166 RI.
+ */
+ public static Class getCallerClass(int depth)
+ {
+ return VMStackWalker.getClassContext()[depth];
+ }
+}
diff --git a/libjava/classpath/vm/reference/sun/reflect/misc/ReflectUtil.java b/libjava/classpath/vm/reference/sun/reflect/misc/ReflectUtil.java
new file mode 100644
index 000000000..aca365d6b
--- /dev/null
+++ b/libjava/classpath/vm/reference/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();
+ }
+}