undefect. CWE-407 — 63 sites patched across 27 ecosystems
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
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test/jdk/com/sun/jdi/ConstantPoolInfo.java
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249
test/jdk/com/sun/jdi/ConstantPoolInfo.java
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/*
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* Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @bug 5024104
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* @summary Test ReferenceType.majorVersion(), minorVersion, constantPoolCount and ConstantPool apis.
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* @author Swamy Venkataramanappa
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*
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* @run build TestScaffold VMConnection
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* @run compile -g ConstantPoolInfo.java
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* @run driver ConstantPoolInfo
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*/
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import com.sun.jdi.*;
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import com.sun.jdi.event.*;
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import com.sun.jdi.request.*;
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import java.util.*;
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import java.io.*;
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/********** target program **********/
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class ConstantPoolTarg {
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public static void main(String[] args){
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System.out.println("Howdy!"); // don't change the string value "Howdy!" it is
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// used to test the constant pool entry
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}
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}
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/********** test program **********/
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public class ConstantPoolInfo extends TestScaffold {
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ReferenceType targetClass;
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ThreadReference mainThread;
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int cpool_count;
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byte[] cpbytes;
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static int expectedMajorVersion;
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static int expectedMinorVersion;
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static int expectedCpoolCount;
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/* Class File Constants */
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public static final int JAVA_MAGIC = 0xcafebabe;
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/* Constant table : copied from sun/javap */
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public static final int CONSTANT_UTF8 = 1;
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public static final int CONSTANT_UNICODE = 2;
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public static final int CONSTANT_INTEGER = 3;
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public static final int CONSTANT_FLOAT = 4;
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public static final int CONSTANT_LONG = 5;
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public static final int CONSTANT_DOUBLE = 6;
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public static final int CONSTANT_CLASS = 7;
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public static final int CONSTANT_STRING = 8;
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public static final int CONSTANT_FIELD = 9;
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public static final int CONSTANT_METHOD = 10;
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public static final int CONSTANT_INTERFACEMETHOD = 11;
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public static final int CONSTANT_NAMEANDTYPE = 12;
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ConstantPoolInfo (String args[]) {
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super(args);
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}
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public static void main(String[] args) throws Exception {
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new ConstantPoolInfo(args).startTests();
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}
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/********** test core **********/
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protected void runTests() throws Exception {
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/*
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* Get to the top of main()
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* to determine targetClass and mainThread
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*/
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BreakpointEvent bpe = startToMain("ConstantPoolTarg");
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targetClass = bpe.location().declaringType();
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mainThread = bpe.thread();
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String targPathname = System.getProperty("test.classes") + File.separator + "ConstantPoolTarg.class";
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readClassData(new FileInputStream(targPathname));
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/* Test constant pool apis
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*/
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if (vm().canGetClassFileVersion()) {
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if (expectedMajorVersion != targetClass.majorVersion()) {
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failure("unexpected major version: actual value: " + targetClass.majorVersion()
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+ "expected value :" + expectedMajorVersion);
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}
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if (expectedMinorVersion != targetClass.minorVersion()) {
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failure("unexpected minor version: actual value: " + targetClass.minorVersion()
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+ "expected value :" + expectedMinorVersion);
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}
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} else {
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System.out.println("can get class version not supported");
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}
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if (vm().canGetConstantPool()) {
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cpool_count = targetClass.constantPoolCount();
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cpbytes = targetClass.constantPool();
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try {
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printcp();
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} catch (IOException x){
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System.out.println("IOexception reading cpool bytes " + x);
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}
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if (expectedCpoolCount != cpool_count) {
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failure("unexpected constant pool count: actual value: " + cpool_count
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+ "expected value :" + expectedCpoolCount);
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}
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} else {
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System.out.println("can get constant pool version not supported");
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}
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/*
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* resume until end
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*/
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listenUntilVMDisconnect();
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/*
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* deal with results of test
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* if anything has called failure("foo") testFailed will be true
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*/
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if (!testFailed) {
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println("ConstantPoolInfo: passed");
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} else {
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throw new Exception("ConstantPoolInfo: failed");
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}
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}
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public void printcp() throws IOException {
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boolean found = false;
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ByteArrayInputStream bytesStream = new ByteArrayInputStream(cpbytes);
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DataInputStream in = new DataInputStream(bytesStream);
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for (int i = 1; i < cpool_count; i++) {
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int tag = in.readByte();
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System.out.print("const #" + i + ": ");
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switch(tag) {
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case CONSTANT_UTF8:
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String str=in.readUTF();
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System.out.println("Asciz " + str);
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// "Howdy!" is an expected constant pool entry
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// of test program. It should exist.
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if (str.compareTo("Howdy!") == 0) {
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found = true;
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}
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break;
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case CONSTANT_INTEGER:
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System.out.println("int " + in.readInt());
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break;
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case CONSTANT_FLOAT:
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System.out.println("Float " + in.readFloat());
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break;
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case CONSTANT_LONG:
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System.out.println("Long " + in.readLong());
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break;
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case CONSTANT_DOUBLE:
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System.out.println("Double " + in.readDouble());
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break;
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case CONSTANT_CLASS:
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System.out.println("Class " + in.readUnsignedShort());
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break;
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case CONSTANT_STRING:
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System.out.println("String " + in.readUnsignedShort());
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break;
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case CONSTANT_FIELD:
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System.out.println("Field " + in.readUnsignedShort() + " " + in.readUnsignedShort());
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break;
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case CONSTANT_METHOD:
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System.out.println("Method " + in.readUnsignedShort() + " " + in.readUnsignedShort());
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break;
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case CONSTANT_INTERFACEMETHOD:
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System.out.println("InterfaceMethod " + in.readUnsignedShort() + " " + in.readUnsignedShort());
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break;
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case CONSTANT_NAMEANDTYPE:
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System.out.println("NameAndType " + in.readUnsignedShort() + " " + in.readUnsignedShort());
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break;
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case 0:
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default:
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System.out.println("class format error");
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}
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}
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if (!found) {
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failure("expected string \"Howdy!\" not found in constant pool");
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}
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}
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/**
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* Read classfile
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*/
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void readClassData(InputStream infile){
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try{
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this.read(new DataInputStream(infile));
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}catch (FileNotFoundException ee) {
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failure("cant read file");
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}catch (Error ee) {
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ee.printStackTrace();
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failure("fatal error");
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} catch (Exception ee) {
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ee.printStackTrace();
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failure("fatal exception");
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}
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}
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/**
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* Read major, minor and cp count.
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*/
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public void read(DataInputStream in) throws IOException {
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int magic = in.readInt();
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if (magic != JAVA_MAGIC) {
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failure("fatal bad class file format");
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}
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expectedMinorVersion = in.readShort();
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expectedMajorVersion = in.readShort();
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expectedCpoolCount = in.readUnsignedShort();
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in.close();
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} // end read()
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}
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