why package in my java project does not compile when grails project run as grails-app,there java project is referenced to grails project

these are images about two my project: java project include : many package xyz. grails project,I reference to java project by two way:

• add in java build path.


• check in project reference.

So i have file TestsimiliraDetection.java in grails project,it call all package in java project. When i run TestsimiliraDetection.java as java-aplication,it't not matter. But when i run ThirdGrails project as grails app,it got error as below: "

  Compiling 3 source files  [groovyc] org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
  [groovyc] Compile error during compilation with javac.
  [groovyc] A:\juno-workspace\ThirdGrails\src\java\readInput\TestSimitaryDetection.java:7: error: package local.extractText.extractText does not exist
  [groovyc] import local.extractText.extractText.ExtractPdf;
  [groovyc]                                     ^
  [groovyc] A:\juno-workspace\ThirdGrails\src\java\readInput\TestSimitaryDetection.java:8: error: package local.extractText.extractText does not exist
  [groovyc] import local.extractText.extractText.GetSection;
  [groovyc]                                     ^
  [groovyc] A:\juno-workspace\ThirdGrails\src\java\readInput\TestSimitaryDetection.java:9: error: package local.extractText.extractText does not exist
  [groovyc] import local.extractText.extractText.GetStructureOfFile;
  [groovyc]                                     ^
  [groovyc] A:\juno-workspace\ThirdGrails\src\java\readInput\TestSimitaryDetection.java:10: error: package local.extractText.getPositionPdf does not exist
  [groovyc] import local.extractText.getPositionPdf.Page;
  [groovyc]                                        ^
  [groovyc] A:\juno-workspace\ThirdGrails\src\java\readInput\TestSimitaryDetection.java:11: error: package local.extractText.getPositionPdf does not exist
  [groovyc] import local.extractText.getPositionPdf.Paragraph;
  [groovyc]                                        ^
  [groovyc] A:\juno-workspace\ThirdGrails\src\java\readInput\TestSimitaryDetection.java:12: error: package local.extractText.getPositionPdf does not exist
  [groovyc] import local.extractText.getPositionPdf.Part;
  [groovyc]                                        ^
  [groovyc] A:\juno-workspace\ThirdGrails\src\java\readInput\TestSimitaryDetection.java:13: error: package local.extractText.getPositionPdf does not exist
  [groovyc] import local.extractText.getPositionPdf.Section;
  [groovyc]                                        ^
  [groovyc] A:\juno-workspace\ThirdGrails\src\java\readInput\TestSimitaryDetection.java:14: error: package local.infoFile does not exist
  [groovyc] import local.infoFile.infoThesis;
  [groovyc]                      ^
  [groovyc] A:\juno-workspace\ThirdGrails\src\java\readInput\TestSimitaryDetection.java:15: error: package local.libs does not exist
  [groovyc] import local.libs.Lib;
  [groovyc]                  ^
  [groovyc] A:\juno-workspace\ThirdGrails\src\java\readInput\TestSimitaryDetection.java:16: error: package local.lucene does not exist
  [groovyc] import local.lucene.FindCopy;
.......

Here package xyz not found .xyz is package in my java-project. but it not success.Is there a way to reference those project .why those package are not compile,I also add class folder in java build path of grails project.but it still get error. Can everyone help me!!.Thanks!!