[jira] Assigned: (XMLCOMMONS-5) NPE in TransformerFactory.newInstance() when jaxp.properties is present.

["Michael Glavassevich (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/XMLCOMMONS-5?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Glavassevich reassigned XMLCOMMONS-5:
---------------------------------------------

    Assignee: Michael Glavassevich  (was: Commons Developers Mailing List)

> NPE in TransformerFactory.newInstance() when jaxp.properties is present.
> ------------------------------------------------------------------------
>
>                 Key: XMLCOMMONS-5
>                 URL: https://issues.apache.org/jira/browse/XMLCOMMONS-5
>             Project: XmlCommons
>          Issue Type: Bug
>          Components: JAXP
>    Affects Versions: 1.x
>         Environment: Operating System: All
> Platform: PC
>            Reporter: Steve
>            Assignee: Michael Glavassevich
>
> If jaxp.properties is present in JAVA_HOME/jre/lib and it does not
> contain a javax.xml.transform.TransformerFactory property,
> when issuing TransformerFactory.newInstance, you get the following 
> exceptions:
> javax.xml.transform.TransformerFactoryConfigurationError: Provider null could no
> t be instantiated: java.lang.NullPointerException
>         at javax.xml.transform.TransformerFactory.newInstance(TransformerFactory
> .java:145)
>         at testtrans.main(testtrans.java:13)
> Cause Exception:
> java.lang.NullPointerException
>         at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:279)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
>         at javax.xml.transform.FactoryFinder.newInstance(FactoryFinder.java:132)
>         at javax.xml.transform.FactoryFinder.find(FactoryFinder.java:188)
>         at javax.xml.transform.TransformerFactory.newInstance(TransformerFactory
> .java:139)
>         at testtrans.main(testtrans.java:13) 
> Test program for above:
> import javax.xml.transform.*;
> // Test program to product null pointer in TransformerFactory.newInstance().
> // JAVA_HOME/jre/lib must contain a jaxp.properties file.
> // The jaxp.properties must not contain a javax.xml.transform.TransformerFactory
> // property.  An empty jaxp.properties file will do.
> public class testtrans
> {
>     public static void main (String [] args)
>     {
>         try
>         {
>             TransformerFactory tFactory = TransformerFactory.newInstance();
>         }
>         catch (TransformerFactoryConfigurationError e)
>         {
>             e.printStackTrace();
>             Exception ee = e.getException();
>             if (ee != null)
>             {
>                 System.out.println("");
>                 System.out.println("Cause Exception:");
>                 ee.printStackTrace();
>             }
>         }
>         catch (Throwable t)
>         {
>             t.printStackTrace();
>         }
>     }
> }
> javax.xml.transform.FactoryFinder.find() is not checking for a null 
> property value.  (line 186 in 2.2.D13) and is passing null to 
> FactoryFinder.newInstance.
> The find() code does have a catch for Exception, but newInstance() converts
> the null pointer exception to a ConfigurationError which is derived
> from Error not Exception.  ConfigurationError is not caught by find() and
> Error is ultimately returned to user.
> Error was discovered when trying to use jaxp.properties to set other
> properties.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


---------------------------------------------------------------------
To unsubscribe, e-mail: xml-commons-dev-unsubscribe@xerces.apache.org
For additional commands, e-mail: xml-commons-dev-help@xerces.apache.org