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CSSDK - New file Creation - Null Pointer Exception - CSSessionCache -getUserID

shameem

I am on Teamsite 7.2 and I am trying to connect to the teamsite server using CSSDK client. Frankly speaking it worked before and now it is throwing error. Not sure what went wrong. Appreciate if any body throw some light.

CSSimpleFile targetSimpleFile = wa.createSimpleFile( targetFileAreaRelPath);

FOr the above line the following error appears. Till the WA object creation no issues.

Exception in thread "main" java.lang.NullPointerException
at com.interwoven.cssdk.sci.data.CSSessionCache.getUserId(CSSessionCache.java:958)
at com.interwoven.cssdk.sci.data.CSSessionCache.getUserId(CSSessionCache.java:907)
at com.interwoven.cssdk.sci.filesys.FileServiceFileSciImpl.createFile(FileServiceFileSciImpl.java:243)
at com.interwoven.cssdk.sci.filesys.FileServiceSciImpl.createFile(FileServiceSciImpl.java:463)
at com.interwoven.cssdk.filesys.java.FileServiceAdapterImpl.createFile(FileServiceAdapterImpl.java:81)
at com.interwoven.cssdk.filesys.impl.CSWorkareaImpl.createSimpleFile(CSWorkareaImpl.java:376)
at com.cms.java.test.main(test.java:64)

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Migrateduser

I am on Teamsite 7.2 and I am trying to connect to the teamsite server using CSSDK client. Frankly speaking it worked before and now it is throwing error. Not sure what went wrong. Appreciate if any body throw some light.

CSSimpleFile targetSimpleFile = wa.createSimpleFile( targetFileAreaRelPath);

FOr the above line the following error appears. Till the WA object creation no issues.

Exception in thread "main" java.lang.NullPointerException
at com.interwoven.cssdk.sci.data.CSSessionCache.getUserId(CSSessionCache.java:958)
at com.interwoven.cssdk.sci.data.CSSessionCache.getUserId(CSSessionCache.java:907)
at com.interwoven.cssdk.sci.filesys.FileServiceFileSciImpl.createFile(FileServiceFileSciImpl.java:243)
at com.interwoven.cssdk.sci.filesys.FileServiceSciImpl.createFile(FileServiceSciImpl.java:463)
at com.interwoven.cssdk.filesys.java.FileServiceAdapterImpl.createFile(FileServiceAdapterImpl.java:81)
at com.interwoven.cssdk.filesys.impl.CSWorkareaImpl.createSimpleFile(CSWorkareaImpl.java:376)
at com.cms.java.test.main(test.java:64)

To state the obvious, something in that line is null. Should be easy enough to figure it out with some debug statements.

shameem

Dave, till the wa object creation its good.

How do I put the debug statement in the at com.interwoven.cssdk.sci.data.CSSessionCache.getUs erId(CSSessionCache.java:958)

one more interesting thing I found was the same program from other CSSDK client (other dev machine) its working. So narrowed down to be my dev environment issues.

I am using eclipse Indigo + tomcat 5.5 and something is not getting transferred to server. May be.

Migrateduser

Dave, till the wa object creation its good.

How do I put the debug statement in the at com.interwoven.cssdk.sci.data.CSSessionCache.getUs erId(CSSessionCache.java:958)

one more interesting thing I found was the same program from other CSSDK client (other dev machine) its working. So narrowed down to be my dev environment issues.

I am using eclipse Indigo + tomcat 5.5 and something is not getting transferred to server. May be.

I would start with the wa object and test it for null before the statement that bombs and print something out if it's null, print something else if it's not. Standard debugging. You should be able to do this if you're coding in Java...

kalai

Using the CSSDK you are creating the workarea and using the workarea object, you are trying to create the simple file. How you are creating the "targetFileAreaRelPath" object? It can be created in two ways one is from using the workarea object you can get the vPath and from the vPath you can get the CSAreaRelativePath object(targetFileAreaRelPath). Another way is directly you can get the CSAreaRelativePath object by passing the value.

Print your "targetFileAreaRelPath" object value and confirm that it is returning the object value instead of null.

Follow the steps like below and it will create the file in workarea.

CSWorkarea wa=client.getWorkarea(csvPath, true);
CSAreaRelativePath targetFileAreaRelPath=new CSAreaRelativePath("filename.extension");
wa.createSimpleFile(targetFileAreaRelPath);
CSSimpleFile targetSimpleFile = wa.createSimpleFile(targetFileAreaRelPath);

Migrateduser

CSWorkarea wa=client.getWorkarea(csvPath, true);
CSAreaRelativePath targetFileAreaRelPath=new CSAreaRelativePath("filename.extension");
wa.createSimpleFile(targetFileAreaRelPath);
CSSimpleFile targetSimpleFile = wa.createSimpleFile(targetFileAreaRelPath);

Why are you creating the file twice? This makes no sense...

shameem

Its a mere typo from kalai - Dave.

However this is not the issue with the code Kalai has given becoz as I said it works in other dev machine. So, the request goes from my dev machine is not sending userid may be. Not sure where the issue is.

Migrateduser

Well the dude should fix his typo if he's going to be suggesting code to implement. Something is clearly different between environments. As I said earlier, you should be able to figure it out with simple debugging.

kalai

Using the CSSDK you are creating the workarea and using the workarea object, you are trying to create the simple file. How you are creating the "targetFileAreaRelPath" object? It can be created in two ways one is from using the workarea object you can get the vPath and from the vPath you can get the CSAreaRelativePath object(targetFileAreaRelPath). Another way is directly you can get the CSAreaRelativePath object by passing the value.

Print your "targetFileAreaRelPath" object value and confirm that it is returning the object value instead of null.

Follow the steps like below and it will create the file in workarea.

CSWorkarea wa=client.getWorkarea(csvPath, true);
CSAreaRelativePath targetFileAreaRelPath=new CSAreaRelativePath("filename.extension");
wa.createSimpleFile(targetFileAreaRelPath);
CSSimpleFile targetSimpleFile = wa.createSimpleFile(targetFileAreaRelPath);

Dave, It was typo error. Yes, need to create the file once.
CSWorkarea wa=client.getWorkarea(csvPath, true);
CSAreaRelativePath targetFileAreaRelPath=new CSAreaRelativePath("filename.extension");
CSSimpleFile targetSimpleFile = wa.createSimpleFile(targetFileAreaRelPath);

kalai

To track down the issue, Add System.out.println() statements in between the java code.

Print the below and confirm us what value you are getting it:

- Client Object
- Workarea Object
- Current User Name
- CSV Path

Migrateduser

To track down the issue, Add System.out.println() statements in between the java code.

Print the below and confirm us what value you are getting it:

- Client Object - WHY?
- Workarea Object
- Current User Name - WHY?
- CSV Path - What is this?

This is silly. If indeed the line the OP is showing is the line that is failing with a NPE, then there are 2 things that could be null. What the heck is the user name going to help with?

kalai

- Client Object - WHY?

@dave - How do you decide whether the client object is valid and not a null?

- Current User Name - WHY?

@dave - How do you know which user credentials are used by client object to execute the java code?

- CSVPath - What is this?

@dave - Have you ever gone through CSSDK API docs? If not please go through to understand.

Migrateduser

Based on the OP, your suggestions make no sense. The OP's code mentions nothing about the objects you ask him to check. He posted one line of code that is failing with a NPE. You're jumping - actually leaping - to something completely else. If he came back and said it was a different line of code that is throwing the NPE, then maybe there could be something else to look at. But if that indeed is the line of code that is failing, then there is no need to look at the client, and certainly not the current user, unless something leads to that. But with what we know, that's way off the beaten track.

shameem

I have done all the debugging infact. Here is the debugging shows.

Here niether wa object is null nor target area relative path is null. Infact every new file/directory creation is throwing error. Funny, when I run the same program with same client (server and username) it works.

wa = client.getWorkarea(destWACSVPath, true);

System.out.println("Workarea Name:" + wa.getName());

// To get the relative path of the file after the workarea
targetFileAreaRelPath = dstCSVPath.getAreaRelativePath();
System.out.println("Target area relative path: " + targetFileAreaRelPath);

targetSimpleFile = wa.createSimpleFile( targetFileAreaRelPath);

The output for the above lines of program is as follows

Workarea Name: myworkarea

Target area relative path: templatedata/product_detail/data/services_sub3/balance-shield
Exception:java.lang.NullPointerException

kalai

Target area relative path: templatedata/product_detail/data/services_sub3/balance-shield
Exception:java.lang.NullPointerException

Is Target area relative path exists in your workarea?-

From the above output the datatype folder is missing.
templatedata/product_detail{category}/{datatype}/data/services_sub3/balance-shield

Share your part/complete CSSDK code to narrow down the issue.

mart2001

One thing that you might want to check is if you have permission to create file from that client to server? You probably don't have the right credentials to create directories/files.

shameem

Kalai,

Those all objects mentioned in your reply are all proper(Checked already). This seems to be entirely my PC setup, CSSDK client/eclipse/tomcat issue. As I mentioned earlier the same code/function works great to the same TS instance.

Trying to build the dev setup one by one once again. If any soultion I will post it here

Thank you all for the valuable inputs.

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