topic Re: Installation problem: NPE during db.create target in Alfresco Archive

Installation problem: NPE during db.create target

lje67 — Thu, 19 May 2011 17:53:42 GMT

I'm having trouble installing the demo. I get to the db.create target and it fails with a NullPointerException as the root cause. The entire stack trace of the failure is copied below. It's quite long. Any ideas about how to fix this? Ant reports the build failed for the following reason:…\acti

Re: Installation problem: NPE during db.create target

ronald_van_kuij — Fri, 20 May 2011 00:18:56 GMT

What java version, ant version etc are you using?

Re: Installation problem: NPE during db.create target

diogo — Sun, 17 Jul 2011 02:19:28 GMT

Hi lje67,

I had the same problem. I believe that Activiti is not creating the database tables.
But I just not know why … =/

PS.: Sorry my bad english.

Re: Installation problem: NPE during db.create target

ronald_van_kuij — Sun, 17 Jul 2011 10:14:51 GMT

what jdk, ant version etc are you using? There are minimal requirements, mentioned in the docs

Re: Installation problem: NPE during db.create target

diogo — Fri, 22 Jul 2011 03:28:26 GMT

Finally got it!
The steps performed were as follows:

1. Run Mysql Server:
# /etc/init.d/mysld start

2. Download JDK 6:
# http://download.oracle.com/otn-pub/java/jdk/6u26-b03/jdk-6u26-linux-i586-rpm.bin

3. Run commands:
# chmod 777 -R jdk-6u26-linux-i586-rpm.bin
# ./jdk-6u26-linux-i586-rpm.bin

4. Download Ant 1.8.2:
# http://ftp.unicamp.br/pub/apache//ant/binaries/apache-ant-1.8.2-bin.tar.gz

5. Edit in "activiti-5.6/setup":
- build.properties
- build.mysql.properties

6. Delete file "slf4j-api-1.5.6.jar" in directory "activiti-5.6/setup/files/dependencies/libs"

7. Run commands:
# export ANT_HOME=/opt/ant-1.8.2
# export JAVA_HOME=/opt/jdk1.6.0_22
# export PATH=${PATH}:${ANT_HOME}/bin
# ant cfg.create

8. Edit in "activiti-5.6/setup/build":
- activiti-cfg.jar

9. Edit in "activiti-5.6/setup/build/activiti-cfg":
- activiti.cfg.xml

10. Run commands:
# ant db.create
# ant demo.install
# ant demo.start

Thats it!
Thanks to all!

Re: Installation problem: NPE during db.create target

ronald_van_kuij — Fri, 22 Jul 2011 07:45:24 GMT

Thanks for reporting back. Appreciate that.

Re: Installation problem: NPE during db.create target

emeka_kanu — Tue, 29 Nov 2011 05:09:02 GMT

Sorry,
Your answer does not help at all. What values in these files did you have to edit?

Are you saying you had to edit the cfg jar?

@Ronald, I'm having the same problem.

My JDK version is 1.6.0_24 and my Ant Version is 1.8.

@Diogo, please provide more details.

Re: Installation problem: NPE during db.create target

emeka_kanu — Tue, 29 Nov 2011 08:53:21 GMT

Right,

Some more information. Diogo's solution only works for those who have not had to alter their JRE lib/endorsed directory with later versions of the XML api, xalan and xerces jars. I had to do that due to some other issue with XPath. As a result, I was getting the error described.

My guess is that the jars provided in the activiti dependencies directory have to be added to the ant internal.classpath for the desired classes to be used.

Activiti, I'd advised that you change your setup script to do this, if this is the case.