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Forum Numerical Method Bug Reports

SuanShu inside NetBeans platform application

  1. Anonymous 2011-11-15 at 11:13 am

    Hi,

    I met anouther issue regarding using SuanShu library. I’m going to use SS in my application based on NetBeans platform v 6.9.1 (http://netbeans.org/features/platform/). When I tried to do that I found that NetBeans proxy class loader doesn’t load class from the default packages (http://kickjava.com/src/org/netbeans/ProxyClassLoader.java.htm  see loadClass method). When I try to execute something like

    <br />
      .....<br />
      ShapiroWilk sw = new ShapiroWilk(myData);<br />
      .....<br />

    inside my NetBeans application I get next exception:

    <br />
Caused by: java.lang.NoClassDefFoundError: w<br />
at com.numericalmethod.suanshu.analysis.function.rn2r1.UnivariateRealFunction.<clinit>(tg:229)<br />
at com.numericalmethod.suanshu.stats.distribut-> ion.univariate.NormalDistribution.</clinit><clinit>(mn:298)<br />
at com.numericalmethod.suanshu.stats.test.distribution.normality.ShapiroWilk.<init>(og:253)<br />
        .....<br />
Caused by: java.lang.ClassNotFoundException: Will not load classes from default package (w)<br />
at org.netbeans.ProxyClassLoader.loadClass(ProxyClassLoader.java:199)<br />
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)<br />
        .....<br />
</init></clinit>

    It happens when SS tries to load class w but this class is in default package of SuanShu. Could you remove class w from default package and put it to some xxx.utils or something like that ? We are planning to use this library in our application and it makes a big problem.

    I’m not sure that is bug but definitely it will not work in NB based applications.

    –dima

  2. RyuParticipant 2011-11-15 at 2:05 pm

    hmm… we do not have any class in the default package. All our packages start with ‘com.numericalmethod’. We will look into the problem you reported and get back to you soon.

  3. Anonymous 2011-11-15 at 2:14 pm

    Hi, Definitely you have :

    <br />
> unzip -l suanshu-1.7.0.jar<br />
     ...............<br />
     3650  2011-10-28 16:09   com/numericalmethod/suanshu/analysis/function/polynomial/root/jenkinstraub/o.class<br />
     8294  2011-10-28 16:09   com/numericalmethod/suanshu/analysis/function/polynomial/root/jenkinstraub/v.class<br />
     1018  2011-10-28 16:09   com/numericalmethod/suanshu/analysis/function/polynomial/root/jenkinstraub/x.class<br />
     4543  2011-10-28 16:09   com/numericalmethod/suanshu/analysis/function/polynomial/root/jenkinstraub/j.class<br />
      942  2011-10-28 16:09   w.class<br />

    w.class is in default package.

    –dima

  4. Ken YiuParticipant 2011-11-16 at 10:17 am

    o16t, thank you for using Suanshu in your application!

    We will improve the class packaging in suanshu.jar to accommodate your requirements, and will make a new release soon. Thank you for your suggestion. Please stay tuned.

  5. Anonymous 2011-11-16 at 1:21 pm

    Thank you !

  6. RyuParticipant 2011-12-02 at 12:59 pm

    Release 1.8.0 should have addressed this problem. http://numericalmethod.com/forum/index.php/topic,98.0.html

  7. Anonymous 2011-12-05 at 11:10 am

    Hi, Thanks you guys, now it works perfect !!!

    Excellent support service !