Plugin for Eclipse 4.4

[DVallejo]

Hi, I want to use the pluging for Eclipse Version 4.4  ( http://arcbees.github.io/gwtp-eclipse-plugin/4.4)

Unfortunatly the Wizard is produccing a project with  the following errors.

a) No persistence.xml file found in project  //  JPA Problem

b) No connection specified for project. No database-specific validation will be performed. // JPA Problem

c)  It doesnt allow to run as Web Application because the main class is not provided.

Any advice to avoid this, will be very valuable. 

My system

    Eclipse IDE for Java EE Developers 4.4.1.20140925-1820

    Google App Engine Java SDK 1.9.20 1.9.20

    Google App Engine Maven Integration 3.8.0.v201410302155-rel-r44

    Google Plugin for Eclipse 4.4 3.8.0.v201410302155-rel-r44

    Google Web Toolkit SDK 2.6.0 2.6.0

    GWT Designer Core 3.1.3.r44x201405021502

    GWT Designer Editor 3.1.3.r44x201405021509

    GWT Designer GPE 3.1.3.r44x201405021554

    GWTP Eclipse Plugin 1.0.0.20150427-0314

    WindowBuilder Core 1.7.0.r44x201405021445

    WindowBuilder CSS Support 1.7.0.r44x201405021453

    WindowBuilder XML Core (requires Eclipse WTP/WST) 1.7.0.r44x201405021458