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Posted to dev@harmony.apache.org by "Svetlana Samoilenko (JIRA)" <ji...@apache.org> on 2006/02/13 12:20:00 UTC
[jira] Updated: (HARMONY-89)
java.util.jar.Manifest().read(InputStream is) throws OutOfMemoryError
[ http://issues.apache.org/jira/browse/HARMONY-89?page=all ]
Svetlana Samoilenko updated HARMONY-89:
---------------------------------------
Attachment: fix.txt
> java.util.jar.Manifest().read(InputStream is) throws OutOfMemoryError
> ---------------------------------------------------------------------
>
> Key: HARMONY-89
> URL: http://issues.apache.org/jira/browse/HARMONY-89
> Project: Harmony
> Type: Bug
> Components: Classlib
> Reporter: Svetlana Samoilenko
> Attachments: fix.txt
>
> Synopsis: java.util.jar.Manifest().read(InputStream is) throws OutOfMemoryError
> Description: For test listed below BEA throws IOException while Harmony throws OutOfMemoryError.
> The test creates an instance of InputStreamImpl where read method is implemented in simple way and returned any integer value, in particular in.available()== 0 and in.read(buf) == buf.length.
> There is no checking for this conditions in the InitManifest.readLines method and as a result an endless loop occurs.
> Suggested fix in attachment may be incomplete, needs additional investigation.
> Code to reproduce:
> import java.util.jar.*;
> import java.io.*;
>
> public class test2 {
> public static void main(String args[]) {
> InputStream is = new InputStreamImpl();
> try {
> new Manifest().read(is);
> } catch (IOException e) {
> e.printStackTrace();
> System.out.println("PASSED");
> }
> }
> }
> class InputStreamImpl extends InputStream{
> public InputStreamImpl() {
> super();
> }
> public int read() {
> return 0;
> }
> }
> Steps to Reproduce:
> 1. Build Harmony (check-out on 2006-01-30) j2se subset as described in README.txt.
> 2. Compile test2.java using BEA 1.4 javac
> > javac -d . test2.java
> 3. Run java using compatible VM (J9)
> > java -showversion test2
> Output:
> C:\tmp>C:\jrockit-j2sdk1.4.2_04\bin\java.exe -showversion test2
> java version "1.4.2_04"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_04-b05)
> BEA WebLogic JRockit(TM) 1.4.2_04 JVM (build ari-31788-20040616-1132-win-ia32, Native Threads, GC strategy: parallel)
> java.io.IOException: line too long
> at java.util.jar.Attributes.read(Ljava.util.jar.Manifest$FastInputStream;[B)V(Attributes.java:356)
> at java.util.jar.Manifest.read(Ljava.io.InputStream;)V(Manifest.java:167)
> at test2.main([Ljava.lang.String;)V(test2.java:8)
> PASSED
> C:\tmp>C:\harmony\trunk\deploy\jre\bin\java -showversion test2
> (c) Copyright 1991, 2005 The Apache Software Foundation or its licensors, as applicable.
> java.lang.OutOfMemoryError
> at java.util.jar.InitManifest.readLines(InitManifest.java:224)
> at java.util.jar.InitManifest.<init>(InitManifest.java:61)
> at java.util.jar.Manifest.read(Manifest.java:273)
> at test2.main(test2.java:10)
> Suggested junit test case:
> ------------------------ ManifestTest.java -------------------------------------------------
> import junit.framework.*;
> import java.io.*;
> import java.util.jar.Manifest;
> public class ManifestTest extends TestCase {
> public static void main(String[] args) {
> junit.textui.TestRunner.run(ManifestTest.class);
> }
> public void test_read () {
> InputStream is = new InputStreamImpl();
> try {
> new Manifest().read(is);
> } catch (IOException e) {
> //expected
> }
> }
> }
> class InputStreamImpl extends InputStream
>
> public InputStreamImpl() {
> super();
> }
> public int read() {
> return 0;
> }
> }
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