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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
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tree976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/gnu/java/lang/VMInstrumentationImpl.java
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+/* VMInstrumentationImpl.java -- interface for the GNU implementation
+ of InstrumentationImpl
+ Copyright (C) 2005 Free Software Foundation, Inc.
+
+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 gnu.java.lang;
+
+import java.lang.instrument.ClassDefinition;
+import java.lang.instrument.Instrumentation;
+
+/**
+ * @author Nicolas Geoffray (nicolas.geoffray@menlina.com)
+ * @since 1.5
+ */
+final class VMInstrumentationImpl
+{
+
+ /**
+ * Returns if the current JVM supports class redefinition
+ *
+ * @return true if the current JVM supports class redefinition
+ */
+ static boolean isRedefineClassesSupported() { return false; }
+
+ /**
+ * Redefines classes given as parameters. The method has to call
+ * the callTransformers from InstrumentationImpl
+ *
+ * @param inst an instrumentation object
+ * @param definitions an array of bytecode<->class correspondance
+ *
+ * @throws ClassNotFoundException if a class cannot be found
+ * @throws UnmodifiableClassException if a class cannot be modified
+ * @throws UnsupportedOperationException if the JVM does not support
+ * redefinition or the redefinition made unsupported changes
+ * @throws ClassFormatError if a class file is not valid
+ * @throws NoClassDefFoundError if a class name is not equal to the name
+ * in the class file specified
+ * @throws UnsupportedClassVersionError if the class file version numbers
+ * are unsupported
+ * @throws ClassCircularityError if circularity occured with the new
+ * classes
+ * @throws LinkageError if a linkage error occurs
+ */
+ static void redefineClasses(Instrumentation inst,
+ ClassDefinition[] definitions)
+ {
+ }
+
+ /**
+ * Get all the classes loaded by the JVM.
+ *
+ * @return an array containing all the classes loaded by the JVM. The array
+ * is empty if no class is loaded.
+ */
+ static Class[] getAllLoadedClasses()
+ {
+ return new Class[0];
+ }
+
+ /**
+ * Get all the classes loaded by a given class loader
+ *
+ * @param loader the loader
+ *
+ * @return an array containing all the classes loaded by the given loader.
+ * The array is empty if no class was loaded by the loader.
+ */
+ static Class[] getInitiatedClasses(ClassLoader loader)
+ {
+ return new Class[0];
+ }
+
+
+ /**
+ * Get the size of an object. The object is not null
+ *
+ * @param objectToSize the object
+ * @return the size of the object
+ */
+ static long getObjectSize(Object objectToSize)
+ {
+ return 0;
+ }
+}