Double invocation of java.io.CharArrayReader constructor can crash VM

Name: kaC94536 Date: 11/12/99



The following test crashes Linux VM:

----------------------------- test.java ------------------------
import java.io.CharArrayReader;

public class test {
    public static void main(String[] args) {
        char[] chars={};
        CharArrayReader car;
        car = new CharArrayReader(chars);
        chars = null;
        car = new CharArrayReader(chars);
    }
}
-------------------------------- output --------------------------

$ java -fullversion
java full version "1.2.2-RC1"
$ java -Djava.compiler=javacomp -cp . test
Segmentation fault (core dumped)

------------------------------------------------------------------

Being run without JIT VM does everithing well:

-------------------------------- output --------------------------

$ java -cp . test
Warning: JIT compiler "sunwjit" not found. Will use interpreter.
Exception in thread "main" java.lang.NullPointerException:
        at java.io.CharArrayReader.<init>(CharArrayReader.java:46)
        at test.main(test.java:9)
$

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