Issues after upgrade to UCD 7.2

[a-robben]

After upgrading to UCD 7.2.2.1 DP steps would fail with the below error. This is do to UCD now using groovy 3.

org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
file:/opt/IBM/ibm-ucd/agent/var/plugins/com.ibm.datapower_21_c161d6fcc56f21d3ce0c76843d79fb8938d175ab1c312601b59cce03dd6d456d/classes/com/urbancode/air/AirPluginTool.groovy: 49: The variable [inputPropsStream] is declared final but is reassigned
. At [49:13] @ line 49, column 13.
inputPropsStream = new FileInputStream(inputPropsFile);
^

1 error

[a-robben]

Removed a few final from AirPluginTool.groovy and got this working. Created pull request.
#130