Lukasz, thank you for your advice.
I got rid of almost all by moving logic into the action and passing new flags
to jsp instead.
e.g.
Migrating struts1
<logic:present name="myList">
<logic:notEmpty name="myList">
by
<s:if test="%{myList != null && !myList.isEmpty()}">
raised
WARN [org.apache.struts2.ognl.SecurityMemberAccess] (default task-2) Declaring
class [class java.util.ArrayList] of member type [public boolean
java.util.ArrayList.isEmpty()] is not allowlisted!
Solution according to your advice:
- Checking myList in the Action
- passing a new flag hasData=true|false to the jsp
- <s:if test="%{hasData}">
worked.
One entry remaining in struts.allowlist.classes - the world won't end because
of this :-)
Best regards
Ute
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