Duplicate Package Warning in the log files

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    • Type: Bug
    • Resolution: Unresolved
    • Priority: Low
    • None
    • Affects Version/s: 9.2.20, 10.2.12
    • Component/s: Data Center - Core
    • None
    • 1
    • Severity 3 - Minor

      Issue Summary

      Duplicate Package Warning in the log files

      Steps to Reproduce

      1. Install Confluence Single node instance 9.2.x
      2. Observe the atlassian.confluence.log file

      Expected Results

      No Warning messages

      Actual Results

      The below exception is thrown in the atlassian-confluence.log file:

      2026-06-01 07:52:35,819 WARN [Catalina-utility-1] [org.twdata.pkgscanner.ExportPackageListBuilder] logDuplicateWarning Package Scanner found duplicates for package 'org.apache.felix.resolver' with different versions. F
iles: org.apache.felix.org.apache.felix.framework-7.0.5.jar and org.eclipse.platform.org.eclipse.osgi-3.18.600.jar\n  '/opt/atlassian/confluence/confluence/WEB-INF/lib/org.apache.felix.org.apache.felix.framework-7.0.5.
jar'\n  '/opt/atlassian/confluence/confluence/WEB-INF/lib/org.eclipse.platform.org.eclipse.osgi-3.18.600.jar'
2026-06-01 07:52:35,820 WARN [Catalina-utility-1] [org.twdata.pkgscanner.ExportPackageListBuilder] logDuplicateWarning Package Scanner found duplicates for package 'org.apache.felix.resolver.reason' with different vers
ions. Files: org.apache.felix.org.apache.felix.framework-7.0.5.jar and org.eclipse.platform.org.eclipse.osgi-3.18.600.jar\n  '/opt/atlassian/confluence/confluence/WEB-INF/lib/org.apache.felix.org.apache.felix.framework
-7.0.5.jar'\n  '/opt/atlassian/confluence/confluence/WEB-INF/lib/org.eclipse.platform.org.eclipse.osgi-3.18.600.jar'
2026-06-01 07:52:35,820 WARN [Catalina-utility-1] [org.twdata.pkgscanner.ExportPackageListBuilder] logDuplicateWarning Package Scanner found duplicates for package 'org.apache.felix.resolver.util' with different versio
ns. Files: org.apache.felix.org.apache.felix.framework-7.0.5.jar and org.eclipse.platform.org.eclipse.osgi-3.18.600.jar\n  '/opt/atlassian/confluence/confluence/WEB-INF/lib/org.apache.felix.org.apache.felix.framework-7
.0.5.jar'\n  '/opt/atlassian/confluence/confluence/WEB-INF/lib/org.eclipse.platform.org.eclipse.osgi-3.18.600.jar'
2026-06-01 07:52:35,820 WARN [Catalina-utility-1] [org.twdata.pkgscanner.ExportPackageListBuilder] logDuplicateWarning Package Scanner found duplicates for package 'com.atlassian.plugin.metadata' with different version
s. Files: com.atlassian.confluence.confluence-10.2.11.jar and com.atlassian.plugins.atlassian-plugins-api-9.1.4.jar\n  '/opt/atlassian/confluence/confluence/WEB-INF/lib/com.atlassian.confluence.confluence-10.2.11.jar'\
n  '/opt/atlassian/confluence/confluence/WEB-INF/lib/com.atlassian.plugins.atlassian-plugins-api-9.1.4.jar'
2026-06-01 07:52:35,821 WARN [Catalina-utility-1] [org.twdata.pkgscanner.ExportPackageListBuilder] logDuplicateWarning Package Scanner found duplicates for package 'org.owasp.validator.html.scan' with different version
s. Files: org.owasp.antisamy.antisamy-1.7.8.jar and com.atlassian.confluence.atlassian-antisamy-support-1.0.3.jar\n  '/opt/atlassian/confluence/confluence/WEB-INF/lib/org.owasp.antisamy.antisamy-1.7.8.jar'\n  '/opt/atl
assian/confluence/confluence/WEB-INF/lib/com.atlassian.confluence.atlassian-antisamy-support-1.0.3.jar'
2026-06-01 07:52:35,821 WARN [Catalina-utility-1] [org.twdata.pkgscanner.ExportPackageListBuilder] logDuplicateWarning Package Scanner found duplicates for package 'org.owasp.validator.html' with different versions. Fi
les: org.owasp.antisamy.antisamy-1.7.8.jar and com.atlassian.confluence.atlassian-antisamy-support-1.0.3.jar\n  '/opt/atlassian/confluence/confluence/WEB-INF/lib/org.owasp.antisamy.antisamy-1.7.8.jar'\n  '/opt/atlassia
n/confluence/confluence/WEB-INF/lib/com.atlassian.confluence.atlassian-antisamy-support-1.0.3.jar'

      Workaround

      Currently there is no known workaround for this behavior. A workaround will be added here when available

              Assignee:
              Unassigned
              Reporter:
              Shivangi Nayak
              Votes:
              0 Vote for this issue
              Watchers:
              1 Start watching this issue

                Created:
                Updated: