[ 
https://issues.apache.org/jira/browse/WW-5031?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Markus Fischer updated WW-5031:
-------------------------------
    Description: 
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<>();

 

 

 

 

  was:
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/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<>();

 

 

 

 


> 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
>
> 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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