java.util.zip.Inflater.needsDictionary() throws unspecified
IllegalStateException
---------------------------------------------------------------------------------
Key: HARMONY-86
URL: http://issues.apache.org/jira/browse/HARMONY-86
Project: Harmony
Type: Bug
Components: Classlib
Reporter: Svetlana Samoilenko
According to the j2se 1.4 and 1.5 specification java.util.zip.needsDictionary()
method must not throw any exception.
Harmony throws unspecified IllegalStateException that contradicts specification.
Code to reproduce:
import java.util.zip.*;
public class test2 {
public static void main(String args[]) {
Inflater inf = new Inflater();
System.out.println("Inflater.needsDictionary() =
"+inf.needsDictionary());
}
}
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)
Inflater.needsDictionary() = true
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.IllegalStateException
at java.util.zip.Inflater.needsDictionary(Inflater.java:212)
at test2.main(test2.java:8)
Siggested fix: to remove the lines in needsDictionary() method in
archive/src/main/java/java/util/zip/Inflater.java :
211 if (inputBuffer == null)
212 throw new IllegalStateException();
Suggested junit test case:
------------------------ InflaterTest.java
-------------------------------------------------
import java.util.zip.*;
import junit.framework.*;
public class InflaterTest extends TestCase {
public static void main(String[] args) {
junit.textui.TestRunner.run(InflaterTest .class);
}
public void test_needsDictionary () {
Inflater inf = new Inflater();
assertFalse(inf.needsDictionary());
}
}
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