Dependency Error : SoapUI 5.2.1

In our project we observed a strange error because of which the maven build was failing. Further analysis led to a conclusion that the problem was specific to the version of Soap-UI plugin we were using in our project.

Here below is the error that we observed while executing the build

... 07:11:42 [INFO] Finished at: 2017-03-23T07:11:42+01:00 07:11:42 [INFO] Final Memory: 29M/71M 07:11:42 [INFO] ------------------------------------------------------------------------ 07:11:42 [ERROR] Failed to execute goal com.smartbear.soapui:soapui-maven-plugin:5.2.1:test (myProject_v1) on project myProject_v1.0: Execution myProject_v1 of goal com.smartbear.soapui:soapui-maven-plugin:5.2.1:test failed: A required class was missing while executing com.smartbear.soapui:soapui-maven-plugin:5.2.1:test: com/jgoodies/forms/layout/CellConstraints 07:11:42 [ERROR] ----------------------------------------------------- 07:11:42 [ERROR] realm = plugin>com.smartbear.soapui:soapui-maven-plugin:5.2.1 07:11:42 [ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy 07:11:42 [ERROR] urls[0] = file:/home/jenkins/.m2/repository/com/smartbear/soapui/soapui-maven-plugin/5.2.1/soapui-maven-plugin-5.2.1.jar 07:11:42 [ERROR] urls[1] = file:/home/jenkins/.m2/repository/com/oracle/ojdbc7/12.1.0.2/ojdbc7-12.1.0.2.jar 07:11:42 [ERROR] urls[2] = file:/home/jenkins/.m2/repository/org/codehaus/groovy/groovy-eclipse-compiler/2.9.1-01/groovy-eclipse-compiler-2.9.1-01.jar 07:11:42 [ERROR] urls[3] = file:/home/jenkins/.m2/repository/org/codehaus/plexus/plexus-compiler-api/2.2/plexus-compiler-api-2.2.jar 07:11:42 [ERROR] urls[4] = file:/home/jenkins/.m2/repository/org/codehaus/plexus/plexus-utils/3.0.8/plexus-utils-3.0.8.jar 07:11:42 [ERROR] urls[5] = file:/home/jenkins/.m2/repository/org/apache/xbean/xbean-reflect/3.4/xbean-reflect-3.4.jar ...
There are two possible ways to manage this error, one is to degrade the plugin version for Soap-UI. We saw that this error did not exist with Soap-UI plugin 4.6.? however with 5.?.? we have the problem.

Another way to fix the problem was to add "com.jgoodies:forms:1.0.7"  dependency to your pom file.

<dependency> <groupid>com.jgoodies</groupId> <artifactid>forms</artifactId> <version>1.0.7</version> </dependency>