Edit C:\dspace\webapps\rest\WEB-INF\lib\org\elasticsearch\common\collect\CollectPreconditions.class
???? 2 S 5org/elasticsearch/common/collect/CollectPreconditions java/lang/Object CollectPreconditions.java 4Lorg/elasticsearch/common/annotations/GwtCompatible; <init> ()V this 7Lorg/elasticsearch/common/collect/CollectPreconditions; checkEntryNotNull '(Ljava/lang/Object;Ljava/lang/Object;)V java/lang/NullPointerException java/lang/String valueOf &(Ljava/lang/Object;)Ljava/lang/String; java/lang/StringBuilder length ()I (I)V null key in entry: null= append -(Ljava/lang/String;)Ljava/lang/StringBuilder; "