Description
java.util.ConcurrentModificationException: null
at java.util.LinkedList$ListItr.checkForComodification(LinkedList.java:966) ~[?:1.8.0_181]
at java.util.LinkedList$ListItr.next(LinkedList.java:888) ~[?:1.8.0_181]
at org.apache.ofbiz.order.shoppingcart.ShoppingCart.cleanUpShipGroups(ShoppingCart.java:2199) ~[ofbiz.jar:?]
There's a for-loop over shipInfo and a call to clear inside this loop which leads to a ConcurrentModificationException: https://svn.apache.org/viewvc/ofbiz/ofbiz-framework/trunk/applications/order/src/main/java/org/apache/ofbiz/order/shoppingcart/ShoppingCart.java?view=markup#l2251