vbytes.add(propertySensor1);
vbytes.add(propertySensor2);
vbytes.add(propertySensor3);
vbytes.add(propertySensor4);
Expression collection = new BasicCollectionExpression(vbytes,null);
vbytes1.add(propertySensor5);
vbytes1.add(propertySensor6);
vbytes1.add(propertySensor7);
vbytes1.add(propertySensor8);
Expression collection1 = new BasicCollectionExpression(vbytes1,null);
v.add(collection);
v.add(collection1);
Expression es1 = new Union(v,true);
v.clear();