# Manually import Java library, JDSP, and cannot use JDSP built-in functions

**URL:** <https://discourse.processing.org/t/manually-import-java-library-jdsp-and-cannot-use-jdsp-built-in-functions/46585>\
**Category:** Libraries\
**Created:** [June 21, 2025, 2:26pm UTC](https://discourse.processing.org/t/manually-import-java-library-jdsp-and-cannot-use-jdsp-built-in-functions/46585 "2025-06-21T14:26:17Z")\
**Posts on this page:** 1\
**Showing post:** 11

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**Author:** ![glv](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/glv/32/18785_2.png) [@glv](https://discourse.processing.org/u/glv)\
**Post date:** [June 22, 2025, 2:11pm UTC](https://discourse.processing.org/t/manually-import-java-library-jdsp-and-cannot-use-jdsp-built-in-functions/46585/11 "2025-06-22T14:11:52Z")

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Hello again!

I came across this in the middle of the night:

_[https://stackoverflow.com/questions/35883253/how-to-use-jtransforms-library-with-processing-3](https://stackoverflow.com/questions/35883253/how-to-use-jtransforms-library-with-processing-3)_

Quote from above:

> Sometimes it helps to sleep on it! What seemed impossible last night was a breeze this morning.

That statement _ **resonates** _ with me and I often come back to a project the next day with solutions!

I remembered this in the middle of the night as well and this is why it all seemed so familiar to me:

> [@Type Serial is ambiguous](https://discourse.processing.org/t/type-serial-is-ambiguous/43584):
>
> I’m new to the Processing language. I am trying to run the code for the Arduino Networked Lamp as detailed in the Getting started with Arduino book. I’ve downloaded the program titled ex06 01 processing and I get the following error when I compile it: The type Serial is ambiguous on line 17: Serial port;

Additional references for future:

> **[Java Libraries](https://happycoding.io/tutorials/java/libraries)**
>
> Learn how to use Java libraries.

> **[How to Use Processing Libraries](https://happycoding.io/tutorials/processing/libraries)**
>
> Learn how to use libraries to expand what Processing can do.

This has all sparked my interest and I will certainly be exploring the topics in more depth in the future.

Thanks for all the kind words!

Have fun!

`:)`

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