Thread dump attached. 

IDE is freezing when (probably) trying to invoke html code completion. I found this issue in this particular case so far
but will report when I find another case, immediately. 

Product Version: NetBeans IDE Dev (Build 2009-05-08_15-03-54 )
Java: 1.6.0_14-ea; Java HotSpot(TM) 64-Bit Server VM 14.0-b12

steps to reproduce: 
consider this code: 
<?php
/*
 *
define("DB_HOST", "localhost");

$conn = mysql_connect (DB_HOST, DB_USER, DB_PASS)
    OR DIE ("Can't connect to database");
mysql_select_db(DB_DATA, $conn);
mysql_set_charset("utf8", $conn);
*/

include("../configs/DB.inc.php");
include("../php/DBClass.php");
include("../php/CompanyClass.php");
$db = new DB();
$db->_construct(); 

if (isset($_POST['ic_input'])) {

//THIS IS A PLACE WE WILL ADD A NEW CODE 

$company = new Company();
$testIc = $company->testIc($ic);
echo $testIc['msg'];
return $testIc['result']; 
}

?>

try to write on place I marked in code this: 
?>
<script language="javascript"> 
<? 

when you are done with javascript"> it should offer you code completion to close this tag. IDE freezes instead. 

I'll try to reproduce on lower jdk because this is ea version ... but anyway, the only workaround is to kill IDE and
loose your changes.