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--- tracing:ex3 [2008/10/06 17:41] – bdefrain
+++ tracing:ex3 [2021/02/05 13:55] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
+[[tracing:intro|Intro]]
+[[tracing:ex1|Ex1]]
+[[tracing:ex2|Ex2]]
+[[tracing:ex3|Ex3]]
 ====== Context: Points in groups ======
@@ Line 21: / Line 25: @@
 Add similar advice to ensure that a ''Point'' is never added to more than one ''Group''. If this invariant is violated, the advice should throw an ''IllegalStateException'' that uses the string representation of the first group as its message.
-<note hint>
+Take a look a the implementation of the test case to see what is precisely expected.
+<note tip>
 Use an inter-type field declaration to associate a field of type ''Group'' with each ''Point'' object. Check and set this field from the advice.
 </note>