Re: Null pointer on IFSFile delete?

On 10/11/2011 9:17 AM, David Gibbs wrote:

On 9/14/2011 1:37 PM, David Gibbs wrote:

I was trying to delete an IFS file from a remote server and got a null pointer exception in the IFSFIleImplRemote class.

java.lang.NullPointerException
at com.ibm.as400.access.IFSFileImplRemote.delete(IFSFileImplRemote.java:207)
at com.ibm.as400.access.IFSFile.delete0(IFSFile.java:735)
at com.ibm.as400.access.IFSFile.delete(IFSFile.java:781)

The file had been just recently accessed and it definitely existed.

I encountered this error again ... in the same place ... after upgrading to the latest jt400.

java.lang.NullPointerException
at com.ibm.as400.access.IFSFileImplRemote.delete(IFSFileImplRemote.java:523)
at com.ibm.as400.access.IFSFile.delete0(IFSFile.java:830)
at com.ibm.as400.access.IFSFile.delete(IFSFile.java:876)

David, I have no idea. I think this is the line that's failing:

ds = (ClientAccessDataStream) fd_.server_.sendAndReceive(req);

This would imply that either fd_ or fd_.server_ is null. fd_ cannot be null or it would have failed earlier in the delete() method. In fact, the delete() method calls fd_.connect(), which is supposed to set the server_ value.

So the only way I can see this happening is if you somehow lost the connection for your file and were unable to re-establish it. Are you doing this delete immediately upon creating the IFS File object?

Joe