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Java Hibernate Basics Persisting Data with Hibernate Saving Data with Hibernate

NullPointerException?

Hi all,

I am working on this video: https://teamtreehouse.com/library/hibernate-basics/persisting-data-with-hibernate/saving-data-with-hibernate

When I run the application there seems to be NullPointerException instead of Hibernate: insert into Contact (id, email, firstname, lastname, phone) values (null, ?, ?, ?, ?).

Here is part of my console output:

INFO: HHH000400: Using dialect: org.hibernate.dialect.H2Dialect
Hibernate: drop table Contact if exists
Hibernate: create table Contact (id integer generated by default as identity, email varchar(255), firstname varchar(255), lastname varchar(255), phone bigint, primary key (id))
Mar 04, 2017 7:47:12 PM org.hibernate.tool.schema.internal.SchemaCreatorImpl applyImportSources
INFO: HHH000476: Executing import script 'org.hibernate.tool.schema.internal.exec.ScriptSourceInputNonExistentImpl@66fdec9'
Exception in thread "main" java.lang.NullPointerException
    at com.teamtreehouse.contactmgr.Application.main(Application.java:29)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)

Any help would be much appreciated, thank you!

Alexander Nikiforov
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Alexander Nikiforov
Java Web Development Techdegree Graduate 22,161 Points

Interesting error.

But I can't help without seeing actual project.

If you know/can post a project on GitHub and share a link, will be glad to take a look.

Otherwise, can't help :)

leogerber
leogerber
2,225 Points

Did you forget to add the java transaction api as dependency in Gradle? The dependency block in your build.gradle file should look similiar to this:

dependencies {
    compile 'org.hibernate:hibernate-core:5.1.0.Final'
    compile 'com.h2database:h2:1.4.191'
    compile 'javax.transaction:jta:1.1'
}