[DROOLS-1041] workaround for Javadoc generation error on JDK 8
[DROOLS-1041] workaround for Javadoc generation error on JDK 8

sutaakar/drools,reynoldsm88/drools,romartin/drools,sutaakar/drools,romartin/drools,lanceleverich/drools,sotty/drools,romartin/drools,lanceleverich/drools,romartin/drools,droolsjbpm/drools,sotty/drools,droolsjbpm/drools,mrietveld/drools,sotty/drools,sutaakar/drools,sutaakar/drools,manstis/drools,vinodkiran/drools,vinodkiran/drools,sotty/drools,droolsjbpm/drools,lanceleverich/drools,reynoldsm88/drools,manstis/drools,reynoldsm88/drools,winklerm/drools,vinodkiran/drools,vinodkiran/drools,jomarko/drools,jomarko/drools,vinodkiran/drools,ngs-mtech/drools,mrietveld/drools,winklerm/drools,mrietveld/drools,romartin/drools,winklerm/drools,mrietveld/drools,ngs-mtech/drools,lanceleverich/drools,jomarko/drools,lanceleverich/drools,manstis/drools,reynoldsm88/drools,winklerm/drools,manstis/drools,ngs-mtech/drools,ngs-mtech/drools,droolsjbpm/drools,winklerm/drools,droolsjbpm/drools,sutaakar/drools,jomarko/drools,reynoldsm88/drools,sotty/drools,mrietveld/drools,manstis/drools,ngs-mtech/drools,jomarko/drools