Remove outdated references to Groovy

CONTRIBUTING.adoc

@@ -23,12 +23,12 @@ None of these is essential for a pull request, but they will all help.  They can
 added after the original pull request but before a merge.
 
 * Use the https://github.com/spring-projects/spring-framework/wiki/Spring-Framework-Code-Style[Spring Framework code format conventions].
-* Make sure all new `.groovy` files to have a simple Javadoc class comment with at least an
+* Make sure all new `.java` files to have a simple Javadoc class comment with at least an
   `@author` tag identifying you, and preferably at least a paragraph on what the class is
   for.
-* Add the ASF license header comment to all new `.groovy` files (copy from existing files
+* Add the ASF license header comment to all new `.java` files (copy from existing files
   in the project)
-* Add yourself as an `@author` to the .groovy files that you modify substantially (more
+* Add yourself as an `@author` to the .java files that you modify substantially (more
   than cosmetic changes).
 * Add some Javadocs and, if you change the namespace, some XSD doc elements.
 * A few unit tests would help a lot as well -- someone has to do it.

README.adoc

@@ -243,12 +243,11 @@ other Spring Boot app from the `initializr-service` directory:
 [[run-ide]]
 === Running the app in an IDE
 
-You should be able to import the projects into your IDE with no problems (STS with
-the m2e Groovy compiler support or IntelliJ IDEA definitely work). Once there you can
-run the `initializr-service` from its main method, debug it, and it will reload if
-you make changes to other modules. (You may need to manually enable the "full"
-profile.) This is the recommended way to operate while you are developing the
-application, especially the UI.
+You should be able to import the projects into your IDE with no problems. Once there you
+can run the `initializr-service` from its main method, debug it, and it will reload if
+you make changes to other modules. (You may need to manually enable the "full" profile.)
+This is the recommended way to operate while you are developing the application,
+especially the UI.
 
 
 ## Deploying to Cloud Foundry

initializr-docs/src/main/asciidoc/configuration-format.adoc

@@ -23,7 +23,7 @@ the list of available option for each setting and which one is the default.
 
 
 ## Env section
-TIP: Check {sc-initializr-generator}/metadata/InitializrConfiguration.groovy#L113[the code]
+TIP: Check {sc-initializr-generator}/metadata/InitializrConfiguration.java#L142[the code]
 for a full list of the available configuration options.
 
 The `env` element defines environment option that the service uses:
@@ -99,7 +99,7 @@ that dependency is added.
 with the dependency.
 * Links to resources such as a guide or a reference doc section.
 
-TIP: Check {sc-initializr-generator}/metadata/Dependency.groovy[the code] for a full
+TIP: Check {sc-initializr-generator}/metadata/Dependency.java[the code] for a full
 list of the available configuration options.
 
 Here is the most basic dependency entry you could have

initializr-docs/src/main/asciidoc/index.adoc

@@ -14,7 +14,7 @@ Stéphane Nicoll; Dave Syer
 :github-code: https://github.com/{github-repo}/tree/{github-tag}
 :github-wiki: https://github.com/{github-repo}/wiki
 :github-master-code: https://github.com/{github-repo}/tree/master
-:sc-initializr-generator: {github-code}/initializr-generator/src/main/groovy/io/spring/initializr
+:sc-initializr-generator: {github-code}/initializr-generator/src/main/java/io/spring/initializr
 :sc-initializr-service: {github-code}/initializr-service/src/main
 :spring-initializr-docs-version: current
 :spring-initializr-docs: http://docs.spring.io/initializr/docs/{spring-initializr-docs-version}/reference

initializr-web/src/main/java/io/spring/initializr/web/autoconfigure/InitializrAutoConfiguration.java

@@ -104,7 +104,7 @@ public ProjectGenerator projectGenerator() {
 	@Bean
 	@ConditionalOnMissingBean
 	public TemplateRenderer templateRenderer(Environment environment) {
-		RelaxedPropertyResolver resolver = new RelaxedPropertyResolver(environment, "spring.groovy.template.");
+		RelaxedPropertyResolver resolver = new RelaxedPropertyResolver(environment, "spring.mustache.");
 		boolean cache = resolver.getProperty("cache", Boolean.class, true);
 		TemplateRenderer templateRenderer = new TemplateRenderer();
 		templateRenderer.setCache(cache);