Bug in TNS Parser of ojdbc14.jar

Hi,
we recently had problems with two customers using ojdbc14.jar in association with tnsnames.ora. The following exception was thrown:
java.lang.ArrayIndexOutOfBoundsException : Array index out of range: 148
oracle.net.nl.NVTokens.parseTokens(Unknown Source)
oracle.net.nl.NVFactory.createNVPair(Unknown Source)
oracle.net.nl.NLParamParser.addNLPListElement(Unknown Source)
oracle.net.nl.NLParamParser.initializeNlpa(Unknown Source)
oracle.net.nl.NLParamParser.<init>(Unknown Source)
oracle.net.resolver.TNSNamesNamingAdapter.loadFile(Unknown Source)
oracle.net.resolver.TNSNamesNamingAdapter.checkAndReload(Unknown Source)
oracle.net.resolver.TNSNamesNamingAdapter.resolve(Unknown Source)
oracle.net.resolver.NameResolver.resolveName(Unknown Source)
oracle.net.resolver.AddrResolution.resolveAndExecute(Unknown Source)
oracle.net.ns.NSProtocol.establishConnection(Unknown Source)
oracle.net.ns.NSProtocol.connect(Unknown Source)
oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:858)
oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:268)
oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:441)
oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165)
oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35)
oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:801)
I checked with JAD what's wrong in that NVTokens class and found the following code fragment:
public boolean parseTokens(String s)
_numTokens = 0;
_tkPos = 0;
_tkType = new Vector(25, 25);
_tkValue = new Vector(25, 25);
int i = s.length();
char ac[] = s.toCharArray();
int j = 0;
do
if(j >= i)
break;
for(; j < i && _isWhiteSpace(ac[j]); j++);
switch(ac[j])
case 40: // '('
as you can see, the whitespace-eating for loop could loop until j == i, and then the switch(ac[j]) would cause a ArrayIndexOutOfBoundsException.
The tnsnames.ora which led to the exception all had an entry of the form:
ORCL.WORLD =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.20.30.40)(PORT = 1521))
(CONNECT_DATA =
(SID = ORCL)
It was sufficient to insert a blank before the "(DESCRIPTION =" token to prevent the parser from running into the bug. However, if we have to instruct all our customers how and where to insert blanks in their tnsnames.ora, it will get a bit annoying.
I downloaded the latest 1.4 driver version (the used driver was about 3 years old, so I was hoping the bug was corrected in the meantime), but the bug was present there, too.
So please, if any Oracle personnel read this thread, report this to your jdbc driver developers, and hopefully there will be a bug fix in the future.
Best regards,
Hans Vetter
Edited by: user1649592 on Jun 23, 2010 1:11 AM
Edited by: user1649592 on Jun 23, 2010 1:11 AM

Hi,
To supplement my last post, I only get the ArrayIndexOutOfBoundsException on a 64-bit Windows Server 2008 machine. When I run 32-bint Windows Server 2008, the exception does not occur and the database connection works fine. Has this problem been fixed for 64 bit machines ? Or is there something additional that needs to be configured for 64 bit machines ?
Thanks,
Tom Vicker

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