I have been looking at releasing RNG 1.4. I did a check to update the plugins using:
mvn versions:display-plugin-updates -U -N I get an issue about requiring Maven 3.3.9 as a minimum version which requires JDK 7 [1]. Since the project targets JDK 6 this is not ideal. Very few versions have been updated since I did the last release. I checked out tag RNG_1_3 and I get the same issue. So either my current build environment is now mandating maven 3.3.9 or this was an issue on the last release and I did not notice it. Since I last updated plugins before the last release I think this is some third party dependency that is not explicitly controlled in the POM. FYI I am using: mvn -v Apache Maven 3.6.3 (cecedd343002696d0abb50b32b541b8a6ba2883f) Maven home: /usr/local/apache-maven-3.6.3 Java version: 1.8.0_241, vendor: Oracle Corporation, runtime: /usr/lib/jvm/jdk1.8.0_241/jre Default locale: en_GB, platform encoding: UTF-8 OS name: "linux", version: "4.15.0-151-generic", arch: "amd64", family: "unix" If we require Java 1.6 as the target then this will require: 1. Tracking down what has created a requirement for Maven 3.3.9 2. A toolchain to configure Maven running under JDK 1.7+ to build the code using JDK 1.6 [2] 3. Updating the project to use Java 1.7 4. Documenting that Java 1.7 is required to build the project even though the target is 1.6 Currently we use a profile for JDK 1.8+ plugins to run code checks. Travis CI runs a build on JDK 1.7 so the project will build on that platform. But there is no CI build available to run on JDK 1.6. There is nothing in the code to mandate an upgrade to 1.7. So an update would be just for convenience. My preference would be to update the documentation to state that it requires building with Java 1.7 and do at least this release targeting 1.6. Then update the code to 1.8 to take advantage of the new features there and skip 1.7. Is there a requirement that the platform that is targeted must be able to be used to build the code from source? Any opinions? Alex [1] https://maven.apache.org/docs/3.3.9/release-notes.html [2] https://maven.apache.org/guides/mini/guide-using-toolchains.html
