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https://issues.apache.org/jira/browse/WW-5031?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16846578#comment-16846578
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Yasser Zamani commented on WW-5031:
-----------------------------------
{{--illegal-access=deny}} is a great idea to find in which line OGNL tries an
illegal access then fixing it (y) Could you please set Struts {{devMode}} to
true and increase log4j log level to {{DEBUG}} and see if any error starts to
be thrown? thanks in advance!
P.S. Same report at [User mail
list|https://lists.apache.org/thread.html/f9bdcf39b3014363f71f1ecff565931e857f946f8627589e95a8a693@%3Cuser.struts.apache.org%3E]
> OGNL: An illegal reflective access operation has occurred
> ---------------------------------------------------------
>
> Key: WW-5031
> URL: https://issues.apache.org/jira/browse/WW-5031
> Project: Struts 2
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.5.20
> Environment: Java 11 / Linux / test environment on eclipse / Tomcat
> 8.5
> Reporter: Markus Fischer
> Priority: Minor
> Fix For: 2.5.21, 2.6
>
>
> Running Struts on Java 11 gives a new warning about illegal reflection, not
> present on Java 8:
> WARNING: An illegal reflective access operation has occurred
> WARNING: Illegal reflective access by ognl.OgnlRuntime
> ([file:/.../workspace/.../.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/.../WEB-INF/lib/ognl-3.1.21.jar|file:///.../workspace/SC/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/.../WEB-INF/lib/ognl-3.1.21.jar])
> to method java.util.HashMap$Node.getKey()
> WARNING: Please consider reporting this to the maintainers of
> ognl.OgnlRuntime
> WARNING: Use --illegal-access=warn to enable warnings of further illegal
> reflective access operations
> WARNING: All illegal access operations will be denied in a future release
> The warning appears after using the following tag in a JSP (name of
> properties changed):
> <s:select name="item" key="item.key" list="items" />
> The corresponding Action contains:
> private Map<Long, String> items = new LinkedHashMap<>();
>
>
>
>
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