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import java.util.ArrayList;
import java.util.List;
import javassist.*;
@SuppressWarnings("unused")
class InvalidStackMapFrame {
public void bytecodeVerifyError1() {
String[] newLine = new String[10];
for (int i = 0; i < 5; i++) {
String a = newLine[1];
newLine[4] = a;
}
}
public void bytecodeVerifyError() {
// javassist bug : invalid stack map frame
List<Integer> test = new ArrayList<Integer>();
String[] newLine = new String[10];
for (Integer idx : test) {
// invalid stackMapFrame
// FRAME FULL [bug_regression_jdk7/javassist/InvalidStackMapFrame java/util/ArrayList java/lang/Object java/util/Iterator T T T I] []
// java/lang/Object is wrong -> [Ljava/lang/String; is correct
String address = newLine[1];
int tabPos = -1;
if (tabPos != -1) {
address = address.substring(tabPos + 1);
}
newLine[4] = address;
}
}
}
public class Test {
private static final String INVALID_STACK_MAP_FRAME = "InvalidStackMapFrame";
public static void main(String[] args) throws Exception {
// CustomURLClassLoader classLoader = new CustomURLClassLoader(new URL[]{}, Thread.currentThread().getContextClassLoader());
ClassPool classPool = ClassPool.getDefault();
// classPool.appendClassPath(new LoaderClassPath(classLoader));
final CtClass ctClass = classPool.get(INVALID_STACK_MAP_FRAME);
final CtMethod method = ctClass.getDeclaredMethod("bytecodeVerifyError");
// method.addLocalVariable("test_localVariable", CtClass.intType);
method.insertBefore("{ java.math.BigDecimal d = null; d.divide(d); }");
//ctClass.debugWriteFile();
System.out.println("ok");
ctClass.writeFile();
Class<?> cc = ctClass.toClass();
System.out.println(cc.getName());
InvalidStackMapFrame obj = (InvalidStackMapFrame)cc.getDeclaredConstructor().newInstance();
obj.bytecodeVerifyError();
}
}
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