--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/com/sun/jdi/ConstantPoolInfo.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,250 @@
+/*
+ * Copyright 2005 Sun Microsystems, Inc. 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.
+ *
+ * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/**
+ * @test
+ * @bug 5024104
+ * @summary Test ReferenceType.majorVersion(), minorVersion, constantPoolCount and ConstantPool apis.
+ *
+ * @author Swamy Venkataramanappa
+ *
+ * @run build TestScaffold VMConnection
+ * @run compile -g ConstantPoolInfo.java
+ * @run main ConstantPoolInfo
+ */
+import com.sun.jdi.*;
+import com.sun.jdi.event.*;
+import com.sun.jdi.request.*;
+
+import java.util.*;
+import java.io.*;
+
+ /********** target program **********/
+
+class ConstantPoolTarg {
+ public static void main(String[] args){
+ System.out.println("Howdy!"); // don't change the string value "Howdy!" it is
+ // used to test the constant pool entry
+ }
+}
+
+ /********** test program **********/
+
+public class ConstantPoolInfo extends TestScaffold {
+ ReferenceType targetClass;
+ ThreadReference mainThread;
+ int cpool_count;
+ byte[] cpbytes;
+ static int expectedMajorVersion;
+ static int expectedMinorVersion;
+ static int expectedCpoolCount;
+
+ /* Class File Constants */
+ public static final int JAVA_MAGIC = 0xcafebabe;
+
+ /* Constant table : copied from sun/javap */
+ public static final int CONSTANT_UTF8 = 1;
+ public static final int CONSTANT_UNICODE = 2;
+ public static final int CONSTANT_INTEGER = 3;
+ public static final int CONSTANT_FLOAT = 4;
+ public static final int CONSTANT_LONG = 5;
+ public static final int CONSTANT_DOUBLE = 6;
+ public static final int CONSTANT_CLASS = 7;
+ public static final int CONSTANT_STRING = 8;
+ public static final int CONSTANT_FIELD = 9;
+ public static final int CONSTANT_METHOD = 10;
+ public static final int CONSTANT_INTERFACEMETHOD = 11;
+ public static final int CONSTANT_NAMEANDTYPE = 12;
+
+ ConstantPoolInfo (String args[]) {
+ super(args);
+ }
+
+ public static void main(String[] args) throws Exception {
+ new ConstantPoolInfo(args).startTests();
+ }
+
+ /********** test core **********/
+
+ protected void runTests() throws Exception {
+ /*
+ * Get to the top of main()
+ * to determine targetClass and mainThread
+ */
+ BreakpointEvent bpe = startToMain("ConstantPoolTarg");
+ targetClass = bpe.location().declaringType();
+ mainThread = bpe.thread();
+
+
+ String targPathname = System.getProperty("test.classes") + File.separator + "ConstantPoolTarg.class";
+
+ readClassData(new FileInputStream(targPathname));
+
+ /* Test constant pool apis
+ */
+ if (vm().canGetClassFileVersion()) {
+ if (expectedMajorVersion != targetClass.majorVersion()) {
+ failure("unexpected major version: actual value: " + targetClass.majorVersion()
+ + "expected value :" + expectedMajorVersion);
+
+ }
+ if (expectedMinorVersion != targetClass.minorVersion()) {
+ failure("unexpected minor version: actual value: " + targetClass.minorVersion()
+ + "expected value :" + expectedMinorVersion);
+
+ }
+ } else {
+ System.out.println("can get class version not supported");
+ }
+
+
+ if (vm().canGetConstantPool()) {
+
+ cpool_count = targetClass.constantPoolCount();
+
+ cpbytes = targetClass.constantPool();
+
+ try {
+ printcp();
+ } catch (IOException x){
+ System.out.println("IOexception reading cpool bytes " + x);
+ }
+
+ if (expectedCpoolCount != cpool_count) {
+ failure("unexpected constant pool count: actual value: " + cpool_count
+ + "expected value :" + expectedCpoolCount);
+ }
+
+ } else {
+ System.out.println("can get constant pool version not supported");
+ }
+
+
+ /*
+ * resume until end
+ */
+ listenUntilVMDisconnect();
+
+ /*
+ * deal with results of test
+ * if anything has called failure("foo") testFailed will be true
+ */
+ if (!testFailed) {
+ println("ConstantPoolInfo: passed");
+ } else {
+ throw new Exception("ConstantPoolInfo: failed");
+ }
+ }
+
+ public void printcp() throws IOException {
+ boolean found = false;
+
+ ByteArrayInputStream bytesStream = new ByteArrayInputStream(cpbytes);
+ DataInputStream in = new DataInputStream(bytesStream);
+ for (int i = 1; i < cpool_count; i++) {
+ int tag = in.readByte();
+ System.out.print("const #" + i + ": ");
+ switch(tag) {
+ case CONSTANT_UTF8:
+ String str=in.readUTF();
+ System.out.println("Asciz " + str);
+ // "Howdy!" is an expected constant pool entry
+ // of test program. It should exist.
+ if (str.compareTo("Howdy!") == 0) {
+ found = true;
+ }
+ break;
+ case CONSTANT_INTEGER:
+ System.out.println("int " + in.readInt());
+ break;
+ case CONSTANT_FLOAT:
+ System.out.println("Float " + in.readFloat());
+ break;
+ case CONSTANT_LONG:
+ System.out.println("Long " + in.readLong());
+ break;
+ case CONSTANT_DOUBLE:
+ System.out.println("Double " + in.readDouble());
+ break;
+ case CONSTANT_CLASS:
+ System.out.println("Class " + in.readUnsignedShort());
+ break;
+ case CONSTANT_STRING:
+ System.out.println("String " + in.readUnsignedShort());
+ break;
+ case CONSTANT_FIELD:
+ System.out.println("Field " + in.readUnsignedShort() + " " + in.readUnsignedShort());
+ break;
+ case CONSTANT_METHOD:
+ System.out.println("Method " + in.readUnsignedShort() + " " + in.readUnsignedShort());
+ break;
+ case CONSTANT_INTERFACEMETHOD:
+ System.out.println("InterfaceMethod " + in.readUnsignedShort() + " " + in.readUnsignedShort());
+ break;
+ case CONSTANT_NAMEANDTYPE:
+ System.out.println("NameAndType " + in.readUnsignedShort() + " " + in.readUnsignedShort());
+ break;
+ case 0:
+ default:
+ System.out.println("class format error");
+ }
+
+ }
+
+ if (!found) {
+ failure("expected string \"Howdy!\" not found in constant pool");
+ }
+ }
+
+
+ /**
+ * Read classfile
+ */
+ void readClassData(InputStream infile){
+ try{
+ this.read(new DataInputStream(infile));
+ }catch (FileNotFoundException ee) {
+ failure("cant read file");
+ }catch (Error ee) {
+ ee.printStackTrace();
+ failure("fatal error");
+ } catch (Exception ee) {
+ ee.printStackTrace();
+ failure("fatal exception");
+ }
+ }
+
+ /**
+ * Read major, minor and cp count.
+ */
+ public void read(DataInputStream in) throws IOException {
+ int magic = in.readInt();
+ if (magic != JAVA_MAGIC) {
+ failure("fatal bad class file format");
+ }
+ expectedMinorVersion = in.readShort();;
+ expectedMajorVersion = in.readShort();
+ expectedCpoolCount = in.readUnsignedShort();
+ in.close();
+ } // end read()
+}