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Java Hibernate Basics Persisting Data with Hibernate Saving Data with Hibernate

Posted by tuukka uosukainen
tuukka uosukainen
22,107 Points

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
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Alexander Nikiforov
Java Web Development Techdegree Graduate 22,175 Points
Alexander Nikiforov
.a{fill-rule:evenodd;}techdegree seal-36
Alexander Nikiforov
Java Web Development Techdegree Graduate 22,175 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
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'
}