Enumeration class must not use Util classes to avoid CI issues

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.X, 7.1.X, 7.2.X, Master
• Fix Version/s: 7.0.X, 7.1.10 DXP FP13, 7.1.X, 7.2.X, Master
• Component/s: App Management > License Manager
• Labels:
  • QA-AUTOMATION
  • liferay-fixpack-dxp-13-7110
• Branch Version/s:
  7.2.x, 7.1.x, 7.0.x
• Backported to Branch:
  Committed
• Fix Priority: 4
• QA Test Name:
  • LicenseManagerMessageTypeTest#initializationError
  • LocalFile.PortalSmoke#Smoke
• QA Test Score: 10

LicenseManagerMessageType.java refers to JSONUtil, JSONFactoryUtil.

Those classes full initialisation depend on service tracker and OSGi container speed to inject necessary dependency objects.

In CI environment it may happen that '@Component' is activated prior all Util classes are ready.

In this particular case, as it is quite simple JSON creation, use string pattern to form JSON message.