NormalDistributionImpl and NoClassDefFoundError: MathException
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NormalDistributionImpl and NoClassDefFoundError: MathException
by Patrick Meyer-4
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I am using the following code in a method that catches and throws
org.apache.commons.math.MathException. NormalDistributionImpl normal = new NormalDistributionImpl(); double invNorm = normal.inverseCumulativeProbability(itemDifficulty); I import the class using import org.apache.commons.math.MathException; but when I compile and run my code I get this error message java.lang.NoClassDefFoundError: org/apache/commons/math/MathException Any ideas what is happening? With my import statement, it seems like I should not be getting this error. Thanks |
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Re: [math] NormalDistributionImpl and NoClassDefFoundError: MathException
by Luc Maisonobe
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First of all, could put a [math] marker in the subject line when posting to this list ? It is shared among all commons components and this policy helps people setting up filters.
----- "Patrick Meyer" <meyerjp@...> a écrit : > I am using the following code in a method that catches and throws > org.apache.commons.math.MathException. > > NormalDistributionImpl normal = new NormalDistributionImpl(); > double invNorm = normal.inverseCumulativeProbability(itemDifficulty); > > I import the class using > > import org.apache.commons.math.MathException; > > but when I compile and run my code I get this error message > java.lang.NoClassDefFoundError: org/apache/commons/math/MathException > > Any ideas what is happening? With my import statement, it seems like I > > should not be getting this error. Do you have the commons-math jar in your classpath at runtime ? Luc > > Thanks --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscribe@... For additional commands, e-mail: user-help@... |
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Re: [math] NormalDistributionImpl and NoClassDefFoundError: MathException
by Luc Maisonobe
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Patrick Meyer a écrit :
> I am using Netbeans and I have added the commons-math jar as a library. > Is that the same thing? I have not used Netbeans in years, but I suppose this is correct. > The following simple test case works fine, but the complete application > produce the error. Does the compilation performs completely without warning nor errors ? You could perhaps check the output manually by exploring the directory where Netbeans puts its classes (perhaps some directory with a name like bin or target or classes). Luc > > package test; > > import org.apache.commons.math.MathException; > import org.apache.commons.math.distribution.NormalDistributionImpl; > > > /** > * > * @author meyerjp > */ > public class Main { > > > > /** > * @param args the command line arguments > */ > public static void main(String[] args) { > > NormalDistributionImpl normal = new NormalDistributionImpl(0.0,1.0); > try{ > double invNorm = normal.inverseCumulativeProbability(0.4); > System.out.println(invNorm); > }catch(MathException ex){ > ex.printStackTrace(); > } > > > } > > } > > > > > > First of all, could put a [math] marker in the subject line when posting > to this list ? It > is shared among all commons components and this policy helps people > setting up filters. > > ----- "Patrick Meyer" <meyerjp@...> a écrit : > >> I am using the following code in a method that catches and throws >> org.apache.commons.math.MathException. >> >> NormalDistributionImpl normal = new NormalDistributionImpl(); >> double invNorm = normal.inverseCumulativeProbability(itemDifficulty); >> >> I import the class using >> >> import org.apache.commons.math.MathException; >> >> but when I compile and run my code I get this error message >> java.lang.NoClassDefFoundError: org/apache/commons/math/MathException >> >> Any ideas what is happening? With my import statement, it seems like I >> >> should not be getting this error. > > Do you have the commons-math jar in your classpath at runtime ? > > Luc > > > --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscribe@... For additional commands, e-mail: user-help@... |
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RE: [math] NormalDistributionImpl and NoClassDefFoundError: MathException
by Mike Baranski-2
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If it compiles but does not run, make sure the compile classpath and runtime
classpath are the same. I have no idea how netbeans determines this, because I use emacs, but that's where I'd start. M. -----Original Message----- From: Luc Maisonobe [mailto:Luc.Maisonobe@...] Sent: Thursday, June 11, 2009 2:42 PM To: Commons Users List Subject: Re: [math] NormalDistributionImpl and NoClassDefFoundError: MathException Patrick Meyer a écrit : > I am using Netbeans and I have added the commons-math jar as a library. > Is that the same thing? I have not used Netbeans in years, but I suppose this is correct. > The following simple test case works fine, but the complete application > produce the error. Does the compilation performs completely without warning nor errors ? You could perhaps check the output manually by exploring the directory where Netbeans puts its classes (perhaps some directory with a name like bin or target or classes). Luc > > package test; > > import org.apache.commons.math.MathException; > import org.apache.commons.math.distribution.NormalDistributionImpl; > > > /** > * > * @author meyerjp > */ > public class Main { > > > > /** > * @param args the command line arguments > */ > public static void main(String[] args) { > > NormalDistributionImpl normal = new > try{ > double invNorm = normal.inverseCumulativeProbability(0.4); > System.out.println(invNorm); > }catch(MathException ex){ > ex.printStackTrace(); > } > > > } > > } > > > > > > First of all, could put a [math] marker in the subject line when posting > to this list ? It > is shared among all commons components and this policy helps people > setting up filters. > > ----- "Patrick Meyer" <meyerjp@...> a écrit : > >> I am using the following code in a method that catches and throws >> org.apache.commons.math.MathException. >> >> NormalDistributionImpl normal = new NormalDistributionImpl(); >> double invNorm = normal.inverseCumulativeProbability(itemDifficulty); >> >> I import the class using >> >> import org.apache.commons.math.MathException; >> >> but when I compile and run my code I get this error message >> java.lang.NoClassDefFoundError: org/apache/commons/math/MathException >> >> Any ideas what is happening? With my import statement, it seems like I >> >> should not be getting this error. > > Do you have the commons-math jar in your classpath at runtime ? > > Luc > > > --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscribe@... For additional commands, e-mail: user-help@... --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscribe@... For additional commands, e-mail: user-help@... |
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