[Reg] JDBC test step does not execute when changing the env

After a good night of sleep I found the solution this morning! Apparantly calling "context.testCase.testSuite.project.activeEnvironment.databaseConnectionContainer.getDatabaseConnectionByName(databaseName).getConnectionString()" twice results in a nullpointer. So removing the first call solved the problem. My now working code looks like:

// Get first databaseName.
def databaseName = context.testCase.testSuite.project.activeEnvironment.databaseConnectionContainer.getDatabaseConnectionAt(0).getName()
log.info "Found databaseName: " + databaseName

// Iterate all test steps in the test case and change connectionString for all ProJdbcRequestTestStep to the selected environment connectionString.
for(testStep in context.testCase.getTestStepList())
{
   // Set the connectionString for all ProJdbcRequestTestStep and WsdlDataSourceTestStep
   if(testStep instanceof com.eviware.soapui.impl.wsdl.teststeps.ProJdbcRequestTestStep)
   {
      // Get databaseName
      def databaseName = testStep.getJdbcRequestTestStepConfig().getDbConnectionName()
      // Get connectionString of active environment
      def connectionString = context.testCase.testSuite.project.activeEnvironment.databaseConnectionContainer.getDatabaseConnectionByName(databaseName).getConnectionString()
      log.info "Found connectionString: " + connectionString
      testStep.setConnectionString(connectionString)
      // Get connection password of active environment
      def connectionPassword = context.testCase.testSuite.project.activeEnvironment.databaseConnectionContainer.getDatabaseConnectionByName(databaseName).getPassword()
      testStep.getDataSource().setPassword(connectionPassword)
   }
   else if(testStep instanceof com.eviware.soapui.impl.wsdl.teststeps.WsdlDataSourceTestStep)
   { 
      if(testStep.getDataSource() instanceof com.eviware.soapui.impl.wsdl.teststeps.datasource.DBDataSource)
      {
         // Get databaseName
         def databaseName = testStep.getDataSource().getDbConnectionName()
         // Get connectionString of active environment
         def connectionString = context.testCase.testSuite.project.activeEnvironment.databaseConnectionContainer.getDatabaseConnectionByName(databaseName).getConnectionString()
         log.info "Found connectionString: " + connectionString
         testStep.getDataSource().setConnectionString(connectionString)
         // Get connection password of active environment
         def connectionPassword = context.testCase.testSuite.project.activeEnvironment.databaseConnectionContainer.getDatabaseConnectionByName(databaseName).getPassword()
         testStep.getDataSource().setPassword(connectionPassword)
      }
   }
}