[GRADLE-2213] Standard jar task generates a jar with duplicate entries if we change the resource output folder. Created: 04/Apr/12  Updated: 10/Feb/17  Resolved: 10/Feb/17

Status: Resolved
Project: Gradle
Affects Version/s: None
Fix Version/s: None

Type: Improvement
Reporter: Gradle Forums Assignee: Unassigned
Resolution: Won't Fix Votes: 8



we change the default resource output folder with:

sourceSets.main.output.resourcesDir = sourceSets.main.output.classesDir

and we have the problem, that the generated jar file has everything dupicated. Class files and resources. And I saw that we can't change the source property of the jar task because it's read only. How can we achieve that the standard jar task of the java plugin creates a correct jar file?

Thanks in advance.


Comment by Tinkerer [ 27/Jun/12 ]

I have the same issue with my jar artifacts produced by my multi-project Gradle (M6) build -

sourceSets {

{ .. output.classesDir = file("$buildDir/classes") output.resourcesDir = file("$buildDir/classes") }


commenting out the output.resourcesDir line produces the desired (jar) artifact. Do classesDir & resourcesDir need to point to different output paths?

Comment by Paul Grove [ 30/Oct/13 ]

This also occurs if the below is in your build file

sourceSets {
        main{   output.resourcesDir = "build/classes/main" }
        test{   output.resourcesDir = "build/classes/test"}
Comment by Gui Forget [ 25/Oct/14 ]

Issue #GRADLE-2171 provided a workaround if not a fix for this. I customized my jar task as follows and the duplicate entries were gone:

jar {
    duplicatesStrategy= DuplicatesStrategy.EXCLUDE
Comment by Benjamin Muschko [ 15/Nov/16 ]

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Comment by Benjamin Muschko [ 10/Feb/17 ]

Thanks again for reporting this issue. We haven't heard back from you after our inquiry from November 15th. We are closing this issue now. Please create an issue on GitHub if you still feel passionate about getting it resolved.

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