Re: STRUTS_EXAMPLES_1_1_0

As a matter of interest why would you be repeatedly redeploying your app 
in production if you are not using it?

On 28/02/2025 15:14, Ing. Andrea Vettori wrote:
> Do I have to open a bug report or is this thread sufficient such that someone with look into it ?
> Thank you for your help on this issue
>
>> On 28 Feb 2025, at 16:09, Greg Huber <[email protected]> wrote:
>>
>> Confirming, the leak is present on v6 struts an on jdk 8,11 and 17.
>>
>> ....At last we can reproduce the problem easily.
>>
>> The following web applications were stopped (reloaded, undeployed), but their
>> classes from previous runs are still loaded in memory, thus causing a memory
>> leak (use a profiler to confirm):
>> /helloworld
>> /helloworld
>> /helloworld
>>
>> On 28/02/2025 15:02, Ing. Andrea Vettori wrote:
>>
>>> I didn’t touch that setting.
>>> If I check a class file from the war I find it has target 17 (version 61)
>>>
>>> javap -verbose HelloWorldAction.class
>>>
>>>    Compiled from "HelloWorldAction.java"
>>> public class org.apache.struts.helloworld.action.HelloWorldAction extends com.opensymphony.xwork2.ActionSupport
>>>    minor version: 0
>>>    major version: 61
>>>
>>> Are you saying that it doesn’t leak if you compile it with target jdk 17 ?
>>>
>>> Thanks
>>>
>>>
>>>> On 28 Feb 2025, at 15:46, Greg Huber <[email protected]> wrote:
>>>>
>>>> |It seems to me that you’ve compiled struts example war with one jdk and are running tomcat with a different one?
>>>> |I did everything with the same jdk version, to be precise it is
>>>>
>>>>   The parent has:
>>>>
>>>> <maven.compiler.source>17</maven.compiler.source>
>>>> <maven.compiler.target>17</maven.compiler.target>
>>>> <struts2.version>6.3.0.2</struts2.version>
>>>>
>>>> If I change this to 1.8, and test, (on  8,11,17) I do get the leak when undeploying a few times :
>>>>
>>>> The following web applications were stopped (reloaded, undeployed), but their
>>>> classes from previous runs are still loaded in memory, thus causing a memory
>>>> leak (use a profiler to confirm):
>>>> /helloworld
>>>> /helloworld
>>>> /helloworld
>>>>
>>>>
>>>> On 28/02/2025 14:34, Ing. Andrea Vettori wrote:
>>>>> It seems to me that you’ve compiled struts example war with one jdk and are running tomcat with a different one?
>>>>> I did everything with the same jdk version, to be precise it is
>>>>>
>>>>> openjdk version "17.0.14" 2025-01-21
>>>>> OpenJDK Runtime Environment Temurin-17.0.14+7 (build 17.0.14+7)
>>>>> OpenJDK 64-Bit Server VM Temurin-17.0.14+7 (build 17.0.14+7, mixed mode, sharing)
>>>>>
>>>>>
>>>>>> On 28 Feb 2025, at 15:28, Greg Huber<[email protected]> wrote:
>>>>>>
>>>>>> Well it only likes jkd17?  Should this be jdk8 as its v6?
>>>>>>
>>>>>> java.lang.UnsupportedClassVersionError: org/apache/struts/helloworld/action/HelloWorldAction has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 52.0 (unable to load class [org.apache.struts.helloworld.action.HelloWorldAction])
>>>>>>
>>>>>> On 28/02/2025 13:14, Ing. Andrea Vettori wrote:
>>>>>>> I tried to use STRUTS_EXAMPLES_1_1_0 and I get two ApplicationContext in memory on jdk17 and tomcat 9.0.100 when doing a redeploy either using manager reload or simply coping the war file.
>>>>>>>
>>>>>>> Using tomcat manager I get the following message using the ‘Find Leaks’ button:
>>>>>>>
>>>>>>> The following web applications were stopped (reloaded, undeployed), but their
>>>>>>> classes from previous runs are still loaded in memory, thus causing a memory
>>>>>>> leak (use a profiler to confirm):
>>>>>>> /hello-world
>>>>>>>
>>>>>>> Can anyone confirm that he gets the same results when using the same versions ?
>>>>>>> Thanks
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>> On 28 Feb 2025, at 12:04, Lukasz Lenart<[email protected]> wrote:
>>>>>>>>
>>>>>>>> pt., 28 lut 2025 o 11:55 Greg Huber<[email protected]> napisał(a):
>>>>>>>>> Maybe comparing your test case with the showcase setup may give a hint
>>>>>>>>> on a config issue.
>>>>>>>>>
>>>>>>>>> @Lukasz do we need a tag for the last javax examples?
>>>>>>>> https://github.com/apache/struts-examples/tree/STRUTS_EXAMPLES_1_1_0
>>>>>>>>
>>>>>>>>
>>>>>>>> Cheers
>>>>>>>> Łukasz
>>>>>>>>
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