Re: GWT compile fails with default Maven directory structure

On Friday, November 21, 2014 11:33:48 AM UTC+1, Thomas Broyer wrote:

When you use Maven and Eclipse, you "import a Maven project" (ou create one from within Eclipse), and the GPE detects the use of the gwt-maven-plugin and auto-configures itself, using the GWT dependencies from your Maven project rather than a "GWT SDK" (so you can really use any GWT version that's available in the Central Repository, whether it's available as an "Eclipse plugin" or not is irrelevant).

I like launching DevMode using the GPE even when using Maven, because it's simpler and more integrated to Eclipse.

Thanks, that got me to where gwt:compile is working from the command line or GPE (save the test code path issue I posted about originally, which I'll go to GPE about). I'll work on running stuff later.

Here are a few of the main hurdles I ran into:

- I had to manually change the build order in Java Build Path -> Order and Export to put my Maven Dependencies below everything else, which seems a little strange.

- Where to put resources. I started with everything in src/main/resources to be Maven-like, but realized for GPE and compiling from maven to work, all stuff that needs to be processed by the GWT compiler needs to go in src/main/java. This was an entertaining read.

- The MobileWebApp sample pom.xml references the maven-gae-plugin, but it seems like that's been superseded by appengine-maven-plugin.

- You still want separate GWT and app engine SDKs installed in Eclipse, even though you've also got them in your local maven repository.

- In the end, I was better off starting a new Maven project from scratch then trying to migrate my existing one, especially with my connection to a local Subversion repository. Subclipse didn't handle the moves very well and my working copy got corrupted.

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