NullPointerException « MySQL « JPA Q&A

1. Hibernate throws NullPointerException in EntityVerifyVersionProcess stackoverflow.com

In a WebApplication with Hibernate, I'm using a standard interceptor to create and commit my transactions. However, I'm getting a NullPointerException when the transaction is committed. The error hints to bad session-management, ...

2. Null pointer exception with Mysql forum.hibernate.org

hi i am trying to save a object in to Mysql database. its throwing Null pointer exception. Please help me.... MySql-Jdbc-driver : mysql-connector-java-5.0.8 MySql databse version: MySql 5.0 Hibernate version: hibernate-distribution-3.5.0 Error: Exception in thread "Main Thread" java.lang.NullPointerException at com.mysql.jdbc.PreparedStatement.asSql(PreparedStatement.java:649) at com.mysql.jdbc.PreparedStatement.asSql(PreparedStatement.java:587) at com.mysql.jdbc.PreparedStatement.toString(PreparedStatement.java:4068) at java.lang.String.valueOf(String.java:2826) at java.lang.StringBuffer.append(StringBuffer.java:219) at com.mysql.jdbc.trace.Tracer.printParameters(Tracer.aj:240) at com.mysql.jdbc.trace.Tracer.printEntering(Tracer.aj:167) at com.mysql.jdbc.trace.Tracer.entry(Tracer.aj:126) at com.mysql.jdbc.trace.Tracer.ajc$before$com_mysql_jdbc_trace_Tracer$1$f51c62b8(Tracer.aj:45) at com.mysql.jdbc.Connection.registerStatement(Connection.java:5005) at com.mysql.jdbc.Statement.(Statement.java:270) at ...

3. NullPointerException reading MySQL table with Hibernate forum.hibernate.org

Hello, I have successfully configured hibernate to write data to a database table, and now I am trying to read from it. I want to get back all of the objects that I originally wrote to a table. I have a class Project with attributes id, name, client and location. I have saved three of these objects in a MySQL table ...