# VTK 9 and Java- vtk.jar not automatically generated. Also location of wrapper dlls

**URL:** https://discourse.vtk.org/t/vtk-9-and-java-vtk-jar-not-automatically-generated-also-location-of-wrapper-dlls/3354
**Category:** Support
**Created:** [May 20, 2020, 6:37pm UTC](https://discourse.vtk.org/t/vtk-9-and-java-vtk-jar-not-automatically-generated-also-location-of-wrapper-dlls/3354 "2020-05-20T18:37:25Z")
**Posts on this page:** 1
**Showing post:** 19

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### Author: ![toddy](https://discourse.vtk.org/letter_avatar_proxy/v4/letter/t/edb3f5/32.png) [@toddy](https://discourse.vtk.org/u/toddy)
#### Post date: [May 2, 2021, 5:46am UTC](https://discourse.vtk.org/t/vtk-9-and-java-vtk-jar-not-automatically-generated-also-location-of-wrapper-dlls/3354/19 "2021-05-02T05:46:41Z")

</div>

> [@eclrgp](#):
>
> cd \vtk-9.0.1\Wrapping\Java  
> dir /s/B \*.java \>javafiles  
> javac -d /vtk-9.0.1/java @javafiles  
> cd \vtk-9.0.1\java  
> jar --create -f …/bin/vtk.jar vtk/.class

That should be

```auto
cd $vtk_build_dir\Wrapping\Java
dir /s/B *.java >javafiles
javac -d ..\..\java @javafiles
cd ..\..\java
jar --create -f ..\lib\java\vtk.jar vtk\*.class

```

then run

```auto
cd $vtk_build_dir\Wrapping\Java\vtk\sample
java -cp $vtk_build_dir\lib\java\vtk.jar Demo.java

```

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