Sentence Detector 1.5.0 error message

[Anonymous]

Hi there, this is my first time using opennlp.

I need to use the sentence detector. Here is the code (mostly copy-paste from the example page):

public String splitText (String text) throws FileNotFoundException {

System.out.println("Loading sentence splitter model…");

InputStream modelIn = new FileInputStream("models\\en-sent.bin");
SentenceModel model = null;

try {
  model = new SentenceModel(modelIn);
}
catch (IOException e) {
  e.printStackTrace();
}
finally {
  if (modelIn != null) {
    try {
      modelIn.close();
    }
    catch (IOException e) {
    }
  }
}
System.out.println("Done.");

SentenceDetectorME sentenceDetector = new SentenceDetectorME(model);
return sentenceDetector.sentDetect(text);

}

I get this error:

Loading sentence splitter model…
Exception in thread "main" java.lang.NoClassDefFoundError: opennlp/model/MaxentModel
at textpreproc.SentenceSplitter.splitText(SentenceSplitter.java:22)
at main.Main.test(Main.java:43)
at main.Main.main(Main.java:33)
Caused by: java.lang.ClassNotFoundException: opennlp.model.MaxentModel
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)

I have imported opennlp.tools.sentdetect.* , i have the model in the /models directory (and it loads ok).

What am i doing wrong?

Thanks!

[Joern Kottmann]

You are missing the maxent 3.0.0 jar file on your classpath. Its in the lib directory of the binary distribution.

Hope that helps,
Jörn

[Anonymous]

That was it, Thanks for the quick answer. I just assumed that the opennlp jar had everything it needed in itself.

Stefan

[charith soori]

Thanks for simple answer.