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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_UNCONFIRMED "
   title="UNCONFIRMED - Extensions "nlpsolvert.oxt" and "LanguageTool-x-x.oxt" are incompatible "java.lang.reflect.InvocationTargetException""
   href="https://bugs.documentfoundation.org/show_bug.cgi?id=114056">114056</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Extensions "nlpsolvert.oxt" and "LanguageTool-x-x.oxt" are incompatible "java.lang.reflect.InvocationTargetException"
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>LibreOffice
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>5.1.6.2 release
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>UNCONFIRMED
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Calc
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>libreoffice-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>bgork@juggling.ch
          </td>
        </tr></table>
      <p>
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        <pre>Description:
I work under Linux KUbuntu 16.04, 64 bits, with KDE.
Having installed "LanguageTool--3.9.oxt", and "NLPSolver.oxt", when I try to
activate nlpsolver, I get the error message :
"java.lang.reflect.InvocationTargetException"
In Calc, it is not possible to solve non linear problems, such as minimising
the sum of the squares of differences, depending on two parameters.
"Tools > Solver..."
When disabling "LanguageTool", it doesn't help.
When removing "LanguageTool", the problem is solved and non linear problems can
be solved.
I'm not the only one with this issue, c.f.
<a href="https://code.google.com/archive/p/ooo2gd/issues/115">https://code.google.com/archive/p/ooo2gd/issues/115</a>


Steps to Reproduce:
1. Install LanguageTool-3.9.oxt  and activate it, if it is not already done
2. Install NLPSolver (from synaptic for example)
3. Activate nlpsolver
4. try to solve with "Tools > solver..." a non linear problem

Actual Results:  
° When activating nlpsolver, the error :
  "java.lang.reflect.InvocationTargetException" occur
° "Tools > solver..." doesn't work for optimising problems like minimising the
sum of the square of differences, depending on two parameters.


Expected Results:
I would expect to have no error and to be able to sole a non linear problem


Reproducible: Always


User Profile Reset: No



Additional Info:
I can solve a non linear problem after removing "LanguageTool".
As I already wrote, I'm not the only person concerned, c.f.
<a href="https://code.google.com/archive/p/ooo2gd/issues/115">https://code.google.com/archive/p/ooo2gd/issues/115</a>



User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:54.0) Gecko/20100101
Firefox/54.0</pre>
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