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Java EE development: the PermGen error

When developing a tiered Java EE database application there are a tremendous number of program errors that will only be discovered at runtime. If one is using Hibernate as the Object-relational mapping tool, even JPQL queries embedded within your Java application will (likely) pass Java compilation because the syntax and semantics of the JPQL query

 
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Eclipse OEPE, Glassfish and port number conflicts

The software stack I’m currently using for teaching Java EE Application Programming includes: Java JDK 1.7.0 r71, 32-bit edition; Eclipse Luna 32-bit, the Oracle OEPE (Oracle Enterprise Pack for Eclipse) version 12.1.3.1.1, which contains various additional Web Tools Platform (WTP) Eclipse plugins. Java EE 7 32-bit, which includes the Java Enterprise Edition 7 jar files,

 
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Looking for the Eclipse Web Tools Platform? Start here.

Published on August 15, 2013 by in Java

My Java Enterprise Applications course utilizes Eclipse as the development IDE, together with the Web Tools Platform, which includes Glassfish as the Java application server. Persistent storage for applications (ie, database) is the Apache Derby system, which integrates well with the SQL Scrapbook plugin that is part of the Web Tools Platform. The version of

 
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