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https://issues.apache.org/jira/browse/WW-5630?focusedWorklogId=1025105&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-1025105
]
ASF GitHub Bot logged work on WW-5630:
--------------------------------------
Author: ASF GitHub Bot
Created on: 14/Jun/26 09:18
Start Date: 14/Jun/26 09:18
Worklog Time Spent: 10m
Work Description: sonarqubecloud[bot] commented on PR #1740:
URL: https://github.com/apache/struts/pull/1740#issuecomment-4701308065
## [](https://sonarcloud.io/dashboard?id=apache_struts&pullRequest=1740)
**Quality Gate passed**
Issues
 [0 New
issues](https://sonarcloud.io/project/issues?id=apache_struts&pullRequest=1740&issueStatuses=OPEN,CONFIRMED&sinceLeakPeriod=true)
 [0 Accepted
issues](https://sonarcloud.io/project/issues?id=apache_struts&pullRequest=1740&issueStatuses=ACCEPTED)
Measures
 [0 Security
Hotspots](https://sonarcloud.io/project/security_hotspots?id=apache_struts&pullRequest=1740&issueStatuses=OPEN,CONFIRMED&sinceLeakPeriod=true)
 [0.0% Coverage on New
Code](https://sonarcloud.io/component_measures?id=apache_struts&pullRequest=1740&metric=new_coverage&view=list)
 [0.0% Duplication on New
Code](https://sonarcloud.io/component_measures?id=apache_struts&pullRequest=1740&metric=new_duplicated_lines_density&view=list)
<!
Issue Time Tracking
-------------------
Worklog Id: (was: 1025105)
Time Spent: 2h (was: 1h 50m)
> Performance Issue SecurityMemberAccess
> --------------------------------------
>
> Key: WW-5630
> URL: https://issues.apache.org/jira/browse/WW-5630
> Project: Struts 2
> Issue Type: Bug
> Components: Value Stack
> Environment: Payara 7
> Reporter: Jose Miguel
> Priority: Major
> Fix For: 6.11.0, 7.2.0
>
> Attachments: image-2026-05-20-16-37-00-000.png
>
> Time Spent: 2h
> Remaining Estimate: 0h
>
> The Security hardening introduced some performance issues in a system
> multibranch (payara) where one single action is used to process thousand of
> files per minute. The action is using exctly same calls, parameters, and
> classes every call.
> Every call is loading classes, so, blocks the ClassLoader as can be seen in
> JDK Mission Control.
> There's no way to avoid this issue, played with several confi parameters,
> with no luck.
> Checking code, is not cached, it's suggested to cache The validation of
> classes, to avoid validate again and again the same class. the classes
> mostly validated again and again are: java.lang.Process
> org.apache.struts2.ActionContext
> java.lang.Runtime
> java.lang.Thread
> java.lang.ThreadLocal
>
> public static Set<Class<?>> validateClasses(Set<String> classNames,
> ClassLoader validatingClassLoader) throws ConfigurationException {
> Set<Class<?>> classes = new HashSet<>();
> for (String className : classNames) {
> try {
> classes.add(validatingClassLoader.loadClass(className));
> } catch (ClassNotFoundException e) {
> throw new ConfigurationException("Cannot load class for exclusion/exemption
> configuration: " + className, e);
> }
> }
> return classes;
> }
>
> !image-2026-05-20-16-37-00-000.png!
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