[jbpm-dev] Getting JPA persistence error on JBPM

Hi We are using JBPM 5.1.0.Final for our web application and it is deployed on Tomcat. This application gives an intermittent null pointer exception which further leads to Transaction Rollback. Is this a bug in current version. Can We Fix this. If support is required I am ready to purchase support but please tell me how to fix this issue.I am also attaching spring configuration file for further details.Please provide your suggestions for the same. Please find the stack trace below: org.springframework.orm.jpa.JpaSystemException: Error while commiting the transaction; nested exception is javax.persistence.RollbackException: Error w hile commiting the transaction at org.springframework.orm.jpa.EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(EntityManagerFactoryUtils.java:312) at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:103) Thanks, RAMINDER SINGH Software Designer Associate Markets & International Banking RBS Block No 1, Tower A, Unitech Infospace Complex Sector 21, Gurgaon, Haryana, 122002, India Office: +91 1244927873 | Mobile: +91 9717276565 *********************************************************************************** The Royal Bank of Scotland plc. Registered in Scotland No 90312. Registered Office: 36 St Andrew Square, Edinburgh EH2 2YB. Authorised and regulated by the Financial Services Authority. The Royal Bank of Scotland N.V. is authorised and regulated by the De Nederlandsche Bank and has its seat at Amsterdam, the Netherlands, and is registered in the Commercial Register under number 33002587. Registered Office: Gustav Mahlerlaan 350, Amsterdam, The Netherlands. The Royal Bank of Scotland N.V. and The Royal Bank of Scotland plc are authorised to act as agent for each other in certain jurisdictions. This e-mail message is confidential and for use by the addressee only. If the message is received by anyone other than the addressee, please return the message to the sender by replying to it and then delete the message from your computer. Internet e-mails are not necessarily secure. The Royal Bank of Scotland plc and The Royal Bank of Scotland N.V. including its affiliates ("RBS group") does not accept responsibility for changes made to this message after it was sent. For the protection of RBS group and its clients and customers, and in compliance with regulatory requirements, the contents of both incoming and outgoing e-mail communications, which could include proprietary information and Non-Public Personal Information, may be read by authorised persons within RBS group other than the intended recipient(s). Whilst all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that the onward transmission, opening or use of this message and any attachments will not adversely affect its systems or data. No responsibility is accepted by the RBS group in this regard and the recipient should carry out such virus and other checks as it considers appropriate. Visit our website at www.rbs.com ***********************************************************************************