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Eclipse JPA Project Change Event Handler (waiting)

...able the JPA Configurator. I also disabled the JAX-RS Configurator and the JSF Configurator. From that point on the JPA Project Change Event Handler doesn't show up anymore. Restart Eclipse if the change does not take effect immediately. ...
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What are the recommendations for html tag?

...HP, ${pageContext.request.requestURI} in JSP, and #{request.requestURI} in JSF. Noted should be that MVC frameworks like JSF have tags reducing all this boilerplate and removing the need for <base>. See also a.o. What URL to use to link / navigate to other JSF pages. ...
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How to sort two lists (which reference each other) in the exact same way

...ip(*tups) 100 loops, best of 3: 8.51 ms per loop As Quantum7 points out, JSF's suggestion is a bit faster still, but it will probably only ever be a little bit faster, because Python uses the very same DSU idiom internally for all key-based sorts. It's just happening a little closer to the bare me...
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JSP tricks to make templating easier?

...;s:link href="/Customer.action" event="preEdit"> Edit <s:param name="customer.customerId" value="${obj.customerId}"/> <s:param name="page" value="${actionBean.page}"/> </s:link> </t:col> </t:table> Of course the tags work with the JSTL tags ...
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java.lang.IllegalStateException: Cannot (forward | sendRedirect | create session) after response has

... it is still performing a forward() call while it shouldn't be doing that. JSF, which I'm familiar with, does that also unless you explicitly call FacesContext#responseComplete(). This related question (which I found using keywords "grails prevent render response") may be helpful: stackoverflow.com/...
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What to learn for making Java web applications in Java EE 6? [closed]

...use it provides really nice standard APIs for all your needs (Servlet 3.0, JSF 2.0, JPA 2.0, EJB 3.1 lite, Bean Validation 1.0, CDI, etc), because these APIs are all more than decent, because there is nothing really wrong in learning them, because this is already a big task, because you have to star...
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How to run a background task in a servlet based web application?

... This is recipe for trouble. An elaborate explanation can be found in this JSF-related answer on the same question: Spawning threads in a JSF managed bean for scheduled tasks using a timer. share | ...
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What exactly is Java EE?

... Java EE. E.g. "Spring" (standalone) competes EJB/JTA, Spring MVC competes JSF/JAX-RS, Spring DI/IoC/AOP competes CDI, Spring Security competes JAAS/JASPIC, etc. Back during the old J2EE/EJB2 times, the EJB2 API was terrible to implement and maintain. Spring was then a much better alternative to EJB...
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Where to use EJB 3.1 and CDI?

...oped, per HTTP Session @SessionScoped, per application @ApplicationScoped, JSF Conversation @ConversationScoped, or per your custom scope implementation). In EJB the container looks also into a hashmap if the bean is of type @Stateful. An @Stateful bean can also use any of the above scope annotati...
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How do servlets work? Instantiation, sessions, shared variables and multithreading

...object itself represents the "scope" in bean management frameworks such as JSF, CDI, Spring, etc. Those frameworks store their scoped beans as an attribute of its closest matching scope. Thread Safety That said, your major concern is possibly thread safety. You should now know that servlets and f...