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https://issues.apache.org/jira/browse/FOP-3160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17823386#comment-17823386
]
Jason Harrop commented on FOP-3160:
-----------------------------------
With FOP 2.9, this issue can manifest as:
```
Error occurred during initialization of boot layer
java.lang.module.ResolutionException: Modules fop.core and fop.events export
package org.apache.fop.tools to module batik.anim
```
FOP 2.8 doesn't seem to have this issue.
> split packages within the FOP codebase
> --------------------------------------
>
> Key: FOP-3160
> URL: https://issues.apache.org/jira/browse/FOP-3160
> Project: FOP
> Issue Type: Improvement
> Reporter: Samael Bate
> Priority: Major
> Labels: jpms
>
> whilst taking a look at modularising the project (see: FOP-3159) I found that
> that package names are duplicated across the maven sub-modules.
> For example, both fop-core and fop-utils have _org.apache.fop.util.text._
>
> {code:java}
> [ERROR] the unnamed module reads package org.apache.fop.util from both
> org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.util
> [ERROR] the unnamed module reads package org.apache.fop.util.text from both
> org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.util
> [ERROR] the unnamed module reads package org.apache.fop.events from both
> org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.events
> [ERROR] the unnamed module reads package org.apache.fop.tools from both
> org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.events
> [ERROR] module commons.logging reads package org.apache.fop.events from both
> org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.events
> [ERROR] module commons.logging reads package org.apache.fop.tools from both
> org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.events
> [ERROR] module commons.logging reads package org.apache.fop.util from both
> org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.util
> [ERROR] module commons.logging reads package org.apache.fop.util.text from
> both org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.util
> [ERROR] module batik.awt.util reads package org.apache.fop.events from both
> org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.events
> [ERROR] module batik.awt.util reads package org.apache.fop.tools from both
> org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.events
> [ERROR] module batik.awt.util reads package org.apache.fop.util from both
> org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.util
> [ERROR] module batik.awt.util reads package org.apache.fop.util.text from
> both org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.util
> [ERROR] module qdox reads package org.apache.fop.events from both
> org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.events
> [ERROR] module qdox reads package org.apache.fop.tools from both
> org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.events
> [ERROR] module qdox reads package org.apache.fop.util from both
> org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.util
> [ERROR] module qdox reads package org.apache.fop.util.text from both
> org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.util
> [ERROR] module org.apache.commons.io reads package org.apache.fop.events from
> both org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.events
> [ERROR] module org.apache.commons.io reads package org.apache.fop.tools from
> both org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.events
> [ERROR] module org.apache.commons.io reads package org.apache.fop.util from
> both org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.util
> [ERROR] module org.apache.commons.io reads package org.apache.fop.util.text
> from both org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.util
> [ERROR] module xmlgraphics.commons reads package org.apache.fop.events from
> both org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.events
> [ERROR] module xmlgraphics.commons reads package org.apache.fop.tools from
> both org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.events
> [ERROR] module xmlgraphics.commons reads package org.apache.fop.util from
> both org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.util
> [ERROR] module xmlgraphics.commons reads package org.apache.fop.util.text
> from both org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.util
> [ERROR] module ant reads package org.apache.fop.events from both
> org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.events
> [ERROR] module ant reads package org.apache.fop.tools from both
> org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.events
> [ERROR] module ant reads package org.apache.fop.util from both
> org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.util
> [ERROR] module ant reads package org.apache.fop.util.text from both
> org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.util
> [ERROR] module servlet.api reads package org.apache.fop.events from both
> org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.events
> [ERROR] module servlet.api reads package org.apache.fop.tools from both
> org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.events
> [ERROR] module servlet.api reads package org.apache.fop.util from both
> org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.util
> [ERROR] module servlet.api reads package org.apache.fop.util.text from both
> org.apache.xmlgraphics.fop.core and org.apache.xmlgraphics.fop.util
> {code}
> The project should be refactored a bit so that packages are not split across
> modules. This will be needed for JPMS
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