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POHibernate Classes Not Importing with Eclipse Juno and GWT: LockMode, SessionFactory, Criterion
 

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    <h2>Environment</h2> <ul> <li>Ubuntu 12.04 LTS</li> <li>Eclipse Juno 4.2 Build id: 20120614-1722</li> <li>GWT SDK - 2.4.0</li> <li>App Engine SDK - 1.7.2</li> <li>Hibernate Version 3.5</li> <li>JRE: java-7-openjdk-amd64</li> </ul> <p>In reference to @mael comment, Hibernate Tools was installed from the following Eclipse repo: <a href="http://download.jboss.org/jbosstools/updates/stable/indigo/" rel="nofollow noreferrer">http://download.jboss.org/jbosstools/updates/stable/indigo/</a></p> <h2>Problem</h2> <p>The project is a GWT Web Application that uses Hibernate as the entity/persistence manager. I have successfully configured Hibernate to connect to the database, and it pulls in all the tables and associated columns I am interested in. I use Hibernate to reverse engineer the entity/persistence classes; it runs successfully, but I get the import errors in the newly generated classes:</p> <ul> <li>The import org.hibernate.LockMode cannot be resolved.</li> <li>The import org.hibernate.SessionFactory cannot be resolved.</li> <li>The import org.hibernate.criterion.Example cannot be resolved.</li> </ul> <h2>Research/Troubleshooting</h2> <p>There was similar problem I found <a href="https://stackoverflow.com/questions/2122545/eclipse-the-import-cannot-be-resolved-after-java-update">here</a>. I performed the search for the aforementioned classes, and did not find them. I then readded <b>java-7-openjdk-amd64 JRE</b> under <b>Windows > Preferences > Installed JREs</b>. This did not resolve the problem.</p> <p>Also, there does not seem to be very much out there for this problem. So I am assuming there is something I have not understood in the setup of Hibernate and reverse engineering.</p> <p><a href="https://stackoverflow.com/questions/4322893/eclipse-error-the-import-xxx-cannot-be-resolved">Another Similar Problem - Same Solution</a></p> <h2>Update: Solution</h2> <ol> <li>Following @mael's solution, I confirmed that Hibernate Tools does not automatically include the Hibernate jar files required for the auto-generated entity/persistence classes.</li> <li>Downloaded the Hibernate4 jar files from the following <a href="http://sourceforge.net/projects/hibernate/files/hibernate4/4.1.7.Final/" rel="nofollow noreferrer">location</a>.</li> <li>Extracted files to the Eclipse workspace.</li> <li>In Eclipse, right-click on {Project} and go to <b>Build Path > Configure Build Path... > Java Build Path.</b></li> <li>Click on the Libraries tab.</li> <li>Click on Add External JARs...</li> <li>Go to directory where Hibernate4 JAR files were extracted, and follow the path to <b>lib > required</b>.</li> <li>Select all JAR files in the folder and confirm.</li> </ol>
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    1. COare you using maven, ant or just importing the jars to the project in eclipse?
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      1. USElderMael
    2. CO@mael - I have installed Hibernate as an Eclipse plugin (just to reference how I'm using Hibernate); as for the other jars such as openjdk, I've imported them. I am not using any other build tools at this time.
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    3. COHibernate as an Eclipse Plugin? You mean Hibernate Tools?
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