# \[BUG-14674\] Raspberry Pi Serialization Problems on Window with Power Table

**URL:** <https://forum.inductiveautomation.com/t/bug-14674-raspberry-pi-serialization-problems-on-window-with-power-table/27233>\
**Category:** Ignition\
**Created:** [August 7, 2019, 2:56pm UTC](https://forum.inductiveautomation.com/t/bug-14674-raspberry-pi-serialization-problems-on-window-with-power-table/27233 "2019-08-07T14:56:47Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![dkhayes117](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/dkhayes117/32/68344_2.png) [@dkhayes117](https://forum.inductiveautomation.com/u/dkhayes117)\
**Post date:** [August 7, 2019, 2:56pm UTC](https://forum.inductiveautomation.com/t/bug-14674-raspberry-pi-serialization-problems-on-window-with-power-table/27233/1 "2019-08-07T14:56:47Z")

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```auto
SerializationException: Error deserializing element "<c"
caused by NoClassDefFoundError: com/sun/java/swing/plaf/windows/WindowsTableHeaderUI
caused by ClassNotFoundError: com.sun.java.swing.plaf.windows.WindowsTableHeaderUI
Ignition v7.9.12 (b2019070213)
Java: Rasbian 11.0.3

```

I get this error when trying to open a window with a power table in it. The only place in the table that uses java swing is my header configuration, but even when I disable the configureHeaderStyle I get the same error.

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<div class="post-metadata">

**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [August 7, 2019, 3:03pm UTC](https://forum.inductiveautomation.com/t/bug-14674-raspberry-pi-serialization-problems-on-window-with-power-table/27233/2 "2019-08-07T15:03:44Z")

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Thanks, this looks like a bug.

Can you attach an export of your window?

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<div class="post-metadata">

**Author:** ![dkhayes117](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/dkhayes117/32/68344_2.png) [@dkhayes117](https://forum.inductiveautomation.com/u/dkhayes117)\
**Post date:** [August 7, 2019, 3:08pm UTC](https://forum.inductiveautomation.com/t/bug-14674-raspberry-pi-serialization-problems-on-window-with-power-table/27233/3 "2019-08-07T15:08:30Z")

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Yessir, let me know if you need anything else.  
[SewingStation\_2019-08-07\_1107\_partial.proj](https://us1.discourse-cdn.com/inductiveautomation/original/2X/b/be442f66d56caa9b790181f741ffc1eaefb41a5d.proj) (14.6 KB)

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<div class="post-metadata">

**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [August 15, 2019, 5:29pm UTC](https://forum.inductiveautomation.com/t/bug-14674-raspberry-pi-serialization-problems-on-window-with-power-table/27233/4 "2019-08-15T17:29:49Z")

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@dkhayes117 I didn’t notice this first time around, but the problem here is that you’re using Java 11 with Ignition 7.9.x, which is an unsupported combination.

Ignition 7.9 only supports Java 8 and 9.

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<div class="post-metadata">

**Author:** ![dkhayes117](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/dkhayes117/32/68344_2.png) [@dkhayes117](https://forum.inductiveautomation.com/u/dkhayes117)\
**Post date:** [August 15, 2019, 5:32pm UTC](https://forum.inductiveautomation.com/t/bug-14674-raspberry-pi-serialization-problems-on-window-with-power-table/27233/5 "2019-08-15T17:32:11Z")

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Okay thanks, would this be an issue for v8?

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<div class="post-metadata">

**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\
**Post date:** [August 15, 2019, 5:33pm UTC](https://forum.inductiveautomation.com/t/bug-14674-raspberry-pi-serialization-problems-on-window-with-power-table/27233/6 "2019-08-15T17:33:52Z")

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One of our defect analysts did internal testing and wasn’t able to reproduce the issue on 8 with Java 11.

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<div class="post-metadata">

**Author:** ![dkhayes117](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/dkhayes117/32/68344_2.png) [@dkhayes117](https://forum.inductiveautomation.com/u/dkhayes117)\
**Post date:** [August 15, 2019, 5:38pm UTC](https://forum.inductiveautomation.com/t/bug-14674-raspberry-pi-serialization-problems-on-window-with-power-table/27233/7 "2019-08-15T17:38:27Z")

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Understood. The project is working just fine with java 11 and v7.9 with basic tables instead of power tables. I haven’t had any trouble with any other components although this is a lightweight client and is still in development. I’m hoping to upgrade to v8 soon, if not, I’ll just use an older version of Java.