[ http://issues.apache.org/jira/browse/HARMONY-54?page=all ] Tim Ellison resolved HARMONY-54: --------------------------------
Resolution: Fixed Vladimir, Fixed in LUNI java.io.BufferedReader at repo revision 375584. Please check this fully resolves your problem. > java.io.BufferedReader.read(null,int off,int len) does not throw NPE when > len==0 > -------------------------------------------------------------------------------- > > Key: HARMONY-54 > URL: http://issues.apache.org/jira/browse/HARMONY-54 > Project: Harmony > Type: Bug > Components: Classlib > Reporter: Vladimir Ivanov > Assignee: Tim Ellison > Attachments: BufferedReaderTest.java > > In java.io package description j2se 1.4.2 specification says, that unless > otherwise noted, passing a null argument to a constructor or method in any > class or interface in this package will cause a NullPointerException to be > thrown. > But java.io.BufferedReader.read(null,int off,int len) does not throw NPE when > len==0 > Code to reproduce: > import java.io.*; > > public class test29 { > public static void main(String[] args) { > char []ch = {}; > char [] s = null; > BufferedReader toRet = new BufferedReader(new CharArrayReader(ch)); > try { > System.out.println("read(s, 1, 0)= " + toRet.read(s, 1, 0)); > } catch (Exception t) { > System.out.println("Exception: " + t); > } > try { > System.out.println("read(s, 1, 1)= " + toRet.read(s, 1, 1)); > } catch (Exception t) { > System.out.println("Exception: " + t); > } > } > } > Steps to Reproduce: > 1. Build Harmony (check-out on 2006-01-30) j2se subset as described in > README.txt. > 2. Compile test29.java using BEA 1.4 javac > > javac -d . test29.java > 3. Run java using compatible VM (J9) > > java -showversion test29 > Output: > C:\tmp\tmp17>C:\jrockit-j2sdk1.4.2_04\bin\java.exe -showversion test29 > 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) > Exception: java.lang.NullPointerException > Exception: java.lang.NullPointerException > C:\tmp\tmp17>C:\harmony\trunk\deploy\jre\bin\java -showversion test29 > java version 1.4.2 (subset) > (c) Copyright 1991, 2005 The Apache Software Foundation or its licensors, as > applicable. > read(s, 1, 0)= 0 > Exception: java.lang.NullPointerException > C:\tmp\tmp17> > junit test: > ------------------------ BufferedReaderTest.java > ------------------------------------------------- > import java.io.*; > import junit.framework.*; > > public class BufferedReaderTest extends TestCase { > public static void main(String[] args) { > junit.textui.TestRunner.run(BufferedReaderTest.class); > } > public void testHashCode() { > char []ch = {}; > BufferedReader toRet = new BufferedReader(new CharArrayReader(ch)); > try { > toRet.read(null, 1, 0); > fail("NullPointerException expected"); > } catch (NullPointerException e) { > } catch (Exception e) { > fail("Unexpected exception: " + e); > } > } > } -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira