# Java activities

**URL:** <https://forum.uipath.com/t/java-activities/70113>\
**Category:** Help\
**Tags:** java, activities\
**Created:** [October 12, 2018, 9:29am UTC](https://forum.uipath.com/t/java-activities/70113 "2018-10-12T09:29:02Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![arunvinodh10](https://avatars.discourse-cdn.com/v4/letter/a/c57346/32.png) [@arunvinodh10](https://forum.uipath.com/u/arunvinodh10)\
**Post date:** [October 12, 2018, 9:29am UTC](https://forum.uipath.com/t/java-activities/70113/1 "2018-10-12T09:29:02Z")

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I would like to run a jar file in UiPath. Using start process activity, it is working well. But when I use Java Scope and load jar activity it is not working. Also I set the path correctly as mentioned. Please check this error screen shot.

18.3.0+Branch.master.Sha.e9cf0bdab85f4bcf826ce750c59905c7ac073d5e

Source: Java Scope

Message: The path to java library is invalid.  
Parameter name: JavaLibraryPath

Exception Type: System.ArgumentException

An ExceptionDetail, likely created by IncludeExceptionDetailInFaults=true, whose value is:  
System.ArgumentException: The path to java library is invalid.  
Parameter name: JavaLibraryPath  
at UiPath.Shared.Activities.AsyncTaskNativeImplementation.BookmarkResumptionCallback(NativeActivityContext context, Object value)  
at UiPath.Shared.Activities.AsyncTaskNativeActivity.BookmarkResumptionCallback(NativeActivityContext context, Bookmark bookmark, Object value)  
at System.Activities.Runtime.BookmarkCallbackWrapper.Invoke(NativeActivityContext context, Bookmark bookmark, Object value)  
at System.Activities.Runtime.BookmarkWorkItem.Execute(ActivityExecutor executor, BookmarkManager bookmarkManager)

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**Author:** ![nadim.warsi](https://sea2.discourse-cdn.com/uipath/user_avatar/forum.uipath.com/nadim.warsi/32/30741_2.png) [@nadim.warsi](https://forum.uipath.com/u/nadim.warsi)\
**Post date:** [October 12, 2018, 9:44pm UTC](https://forum.uipath.com/t/java-activities/70113/2 "2018-10-12T21:44:12Z")

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See this:

> [@How to invoke the java jar file in ui path](https://forum.uipath.com/t/how-to-invoke-the-java-jar-file-in-ui-path/70009):
>
> how to invoke the java jar file in ui path ? i have installed java in my local ,set the environment variable also , but while adding jdk path in ui path facing issue?

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**Author:** ![arunvinodh10](https://avatars.discourse-cdn.com/v4/letter/a/c57346/32.png) [@arunvinodh10](https://forum.uipath.com/u/arunvinodh10)\
**Post date:** [October 15, 2018, 4:54am UTC](https://forum.uipath.com/t/java-activities/70113/3 "2018-10-15T04:54:12Z")

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Hi nadim,  
I already tried this and it is working fine. My question is how to use java activities package?