SourceMojo : Use isEmpty() to check whether collection is empty or not

[rohanKanojia]

Description

In Java8 we have List.isEmpty() method to check whether list size is greater than zero.
This line

docker-maven-plugin/src/main/java/io/fabric8/maven/docker/SourceMojo.java

Line 81 in e8207b9

if (sourceMode == BuildImageSelectMode.first && imageConfigs.size() > 0) {

should be changed to

if (sourceMode == BuildImageSelectMode.first && !imageConfigs.isEmpty()) {

Acceptance Criteria

• explicit size check is replaced with isEmpty() method
• Project compiles cleanly when mvn clean install is run after making changes

[mdxabu]

Ok, I'll work on this task. But one problem, the maven dependencies and plugins are not found in Intellij Idea

[rohanKanojia]

@mdxabu : You would need to fix your IDE setup if you want to contribute more.

You would need to do mvn clean install -DskipTestsand then click on refresh icon Reload All Maven Projects in Maven sidebar on top right.

[mdxabu]

@rohanKanojia , give me some good first issues.

[rohanKanojia]

Closed via #1747