Convert api-test-jar.sh to java test

• Type: Technical Task
• Status: Closed
• Priority: Minor
• Resolution: Completed
• Affects Version/s: None
• Fix Version/s: 7.0.X, 7.1.X, 7.2.X, 7.3.6 CE GA7, 7.3.X, 7.4.13 DXP GA1, Master
• Component/s: Dev Tools
• Labels: None
• Branch Version/s:
  7.3.x, 7.2.x, 7.1.x, 7.0.x
• Backported to Branch:
  Committed

Model it after the BOM test LPS-119948

https://github.com/liferay/liferay-portal/commit/86f31747e520d010bb48892dc4f045a4c44df3f2

https://github.com/liferay/liferay-portal/blob/master/modules/sdk/project-templates/project-templates/src/test/java/com/liferay/project/templates/ProjectTemplatesBomTest.java

We'll need to add the checks for the service loaders.