Bumping versions

README.adoc

@@ -27,7 +27,7 @@ Extract the files into the JDK/jre/lib/security folder for whichever version of
 
 == Building
 
-:jdkversion: 1.8
+:jdkversion: 17
 
 === Basic Compile and Test
 
@@ -53,23 +53,9 @@ the `.mvn` configuration, so if you find you have to do it to make a
 build succeed, please raise a ticket to get the settings added to
 source control.
 
-For hints on how to build the project look in `.travis.yml` if there
-is one. There should be a "script" and maybe "install" command. Also
-look at the "services" section to see if any services need to be
-running locally (e.g. mongo or rabbit).  Ignore the git-related bits
-that you might find in "before_install" since they're related to setting git
-credentials and you already have those.
+The projects that require middleware (i.e. Redis) for testing generally
+require that a local instance of [Docker](https://www.docker.com/get-started) is installed and running.
 
-The projects that require middleware generally include a
-`docker-compose.yml`, so consider using
-https://docs.docker.com/compose/[Docker Compose] to run the middeware servers
-in Docker containers. See the README in the
-https://github.com/spring-cloud-samples/scripts[scripts demo
-repository] for specific instructions about the common cases of mongo,
-rabbit and redis.
-
-NOTE: If all else fails, build with the command from `.travis.yml` (usually
-`./mvnw install`).
 
 === Documentation
 
@@ -302,3 +288,54 @@ Go to `File` -> `Settings` -> `Other settings` -> `Checkstyle`. There click on t
 - `checkstyle.additional.suppressions.file` - this variable corresponds to suppressions in your local project. E.g. you're working on `spring-cloud-contract`. Then point to the `project-root/src/checkstyle/checkstyle-suppressions.xml` folder. Example for `spring-cloud-contract` would be: `/home/username/spring-cloud-contract/src/checkstyle/checkstyle-suppressions.xml`.
 
 IMPORTANT: Remember to set the `Scan Scope` to `All sources` since we apply checkstyle rules for production and test sources.
+
+=== Duplicate Finder
+
+Spring Cloud Build brings along the  `basepom:duplicate-finder-maven-plugin`, that enables flagging duplicate and conflicting classes and resources on the java classpath.
+
+==== Duplicate Finder configuration
+
+Duplicate finder is *enabled by default* and will run in the `verify` phase of your Maven build, but it will only take effect in your project if you add the `duplicate-finder-maven-plugin` to the `build` section of the projecst's `pom.xml`.
+
+.pom.xml
+[source,xml]
+----
+<build>
+    <plugins>
+        <plugin>
+            <groupId>org.basepom.maven</groupId>
+            <artifactId>duplicate-finder-maven-plugin</artifactId>
+        </plugin>
+    </plugins>
+</build>
+----
+
+For other properties, we have set defaults as listed in the https://github.com/basepom/duplicate-finder-maven-plugin/wiki[plugin documentation].
+
+You can easily override them but setting the value of the selected property prefixed with `duplicate-finder-maven-plugin`. For example, set `duplicate-finder-maven-plugin.skip` to `true` in order to skip duplicates check in your build.
+
+If you need to add `ignoredClassPatterns` or `ignoredResourcePatterns` to your setup, make sure to add them in the plugin configuration section of your project:
+
+[source,xml]
+----
+<build>
+    <plugins>
+        <plugin>
+            <groupId>org.basepom.maven</groupId>
+            <artifactId>duplicate-finder-maven-plugin</artifactId>
+            <configuration>
+                <ignoredClassPatterns>
+                    <ignoredClassPattern>org.joda.time.base.BaseDateTime</ignoredClassPattern>
+                    <ignoredClassPattern>.*module-info</ignoredClassPattern>
+                </ignoredClassPatterns>
+                <ignoredResourcePatterns>
+                    <ignoredResourcePattern>changelog.txt</ignoredResourcePattern>
+                </ignoredResourcePatterns>
+            </configuration>
+        </plugin>
+    </plugins>
+</build>
+
+
+----
+

pom.xml

@@ -13,7 +13,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-build</artifactId>
-		<version>3.0.5</version>
+		<version>3.0.6-SNAPSHOT</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 	<scm>