diff --git a/querydsl-scala/src/test/scala/com/querydsl/scala/CaseClassSerializerTest.scala b/querydsl-scala/src/test/scala/com/querydsl/scala/CaseClassSerializerTest.scala
index 61afa7662..472480ee6 100644
--- a/querydsl-scala/src/test/scala/com/querydsl/scala/CaseClassSerializerTest.scala
+++ b/querydsl-scala/src/test/scala/com/querydsl/scala/CaseClassSerializerTest.scala
@@ -11,7 +11,7 @@ import org.junit.Assert._
 
 import scala.collection.JavaConversions._
 
-class CaseClassSerializerTest extends CompileTestUtils {
+class CaseClassSerializerTest {
 
   val typeMappings = ScalaTypeMappings.create
   
@@ -36,7 +36,7 @@ class CaseClassSerializerTest extends CompileTestUtils {
     serializer.serialize(entityType, SimpleSerializerConfig.DEFAULT, new ScalaWriter(writer))
     val str = writer.toString()
     
-    assertCompileSuccess(str)
+    CompileTestUtils.assertCompileSuccess(str)
   }  
   
 }  
diff --git a/querydsl-scala/src/test/scala/com/querydsl/scala/CompileTestUtils.scala b/querydsl-scala/src/test/scala/com/querydsl/scala/CompileTestUtils.scala
index 3f48c4ae8..c77e3dbcd 100644
--- a/querydsl-scala/src/test/scala/com/querydsl/scala/CompileTestUtils.scala
+++ b/querydsl-scala/src/test/scala/com/querydsl/scala/CompileTestUtils.scala
@@ -8,7 +8,7 @@ import scala.io.Source.fromFile
 import java.io.File
 import java.io.File.pathSeparator
 
-trait CompileTestUtils {
+object CompileTestUtils {
 
   private object env extends Settings {
 
@@ -23,12 +23,20 @@ trait CompileTestUtils {
     usejavacp.value = true
   }
 
+  def assertCompileSuccess(file: File): Unit = {
+    assertCompileSuccess(recursiveFileList(file))
+  }
+
   def assertCompileSuccess(files: Traversable[File]): Unit = {
     for (file <- files) {
       assertCompileSuccess(fromFile(file).mkString)
     }
   }
 
+  def assertCompileSuccessCombined(file: File): Unit = {
+    assertCompileSuccessCombined(recursiveFileList(file))
+  }
+
   def assertCompileSuccessCombined(files: Traversable[File]): Unit = {
     assertCompileSuccess(files
       map (fromFile(_).mkString)
@@ -51,7 +59,7 @@ trait CompileTestUtils {
     }
   }
   
-  def recursiveFileList(file: File): Array[File] = {
+  private def recursiveFileList(file: File): Array[File] = {
     if (file.isDirectory) {
       file.listFiles.flatMap(recursiveFileList)
     } else {
diff --git a/querydsl-scala/src/test/scala/com/querydsl/scala/GenericExporterJPATest.scala b/querydsl-scala/src/test/scala/com/querydsl/scala/GenericExporterJPATest.scala
index 535a82245..2391de14a 100644
--- a/querydsl-scala/src/test/scala/com/querydsl/scala/GenericExporterJPATest.scala
+++ b/querydsl-scala/src/test/scala/com/querydsl/scala/GenericExporterJPATest.scala
@@ -5,7 +5,7 @@ import com.querydsl.codegen.GenericExporter
 import org.junit.Test
 import io.Source.fromFile
 
-class GenericExporterJPATest extends CompileTestUtils {
+class GenericExporterJPATest {
 
   @Test
   def Export {
@@ -26,7 +26,7 @@ class GenericExporterJPATest extends CompileTestUtils {
       filter (_.getName.endsWith(".scala"))
       map (fromFile(_).mkString)
       mkString ("\n"))
-    assertCompileSuccess(sources)
+    CompileTestUtils.assertCompileSuccess(sources)
   }
 
 }
diff --git a/querydsl-scala/src/test/scala/com/querydsl/scala/GenericExporterTest.scala b/querydsl-scala/src/test/scala/com/querydsl/scala/GenericExporterTest.scala
index 42dc5e6a2..f93acfa29 100644
--- a/querydsl-scala/src/test/scala/com/querydsl/scala/GenericExporterTest.scala
+++ b/querydsl-scala/src/test/scala/com/querydsl/scala/GenericExporterTest.scala
@@ -6,7 +6,7 @@ import org.junit.Test
 import io.Source.fromFile
 import java.io.File
 
-class GenericExporterTest extends CompileTestUtils {
+class GenericExporterTest {
 
   @Test
   def Export {
@@ -18,20 +18,20 @@ class GenericExporterTest extends CompileTestUtils {
     exporter.export(getClass.getPackage)
 
     val targetFolder = new File("target/gen1/com/querydsl/scala/")
-    
+
     // com.querydsl.scala
     val sources = (targetFolder.listFiles()
       filter (_.getName.endsWith(".scala"))
       map (fromFile(_).mkString)
       mkString ("\n"))
-    assertCompileSuccess(sources)
+    CompileTestUtils.assertCompileSuccess(sources)
     
     // com.querydsl.scala.ext
     val other = (new File(targetFolder, "ext").listFiles()
       filter (_.getName.endsWith(".scala"))
       map (fromFile(_).mkString)
       mkString ("\n"))
-    assertCompileSuccess("import com.querydsl.scala.ext._\n" + other)
+    CompileTestUtils.assertCompileSuccess("import com.querydsl.scala.ext._\n" + other)
   }
   
 }
diff --git a/querydsl-scala/src/test/scala/com/querydsl/scala/ScalaBeanSerializerTest.scala b/querydsl-scala/src/test/scala/com/querydsl/scala/ScalaBeanSerializerTest.scala
index 840c23b0b..c55563692 100644
--- a/querydsl-scala/src/test/scala/com/querydsl/scala/ScalaBeanSerializerTest.scala
+++ b/querydsl-scala/src/test/scala/com/querydsl/scala/ScalaBeanSerializerTest.scala
@@ -11,7 +11,7 @@ import org.junit.Assert._
 
 import scala.collection.JavaConversions._
 
-class ScalaBeanSerializerTest extends CompileTestUtils {
+class ScalaBeanSerializerTest {
 
   val typeMappings = ScalaTypeMappings.create
   
@@ -63,6 +63,6 @@ class ScalaBeanSerializerTest extends CompileTestUtils {
     typeMappings.register(entityType, new QueryTypeFactoryImpl("Q", "", "").create(entityType))
     serializer.serialize(entityType, SimpleSerializerConfig.DEFAULT, new ScalaWriter(writer))
     val str = writer.toString
-    assertCompileSuccess(str)
+    CompileTestUtils.assertCompileSuccess(str)
   }
 }
\ No newline at end of file
diff --git a/querydsl-scala/src/test/scala/com/querydsl/scala/ScalaEntitySerializerTest.scala b/querydsl-scala/src/test/scala/com/querydsl/scala/ScalaEntitySerializerTest.scala
index 4def5d2d0..c2073fe79 100644
--- a/querydsl-scala/src/test/scala/com/querydsl/scala/ScalaEntitySerializerTest.scala
+++ b/querydsl-scala/src/test/scala/com/querydsl/scala/ScalaEntitySerializerTest.scala
@@ -13,7 +13,7 @@ import com.querydsl.sql._
 
 import java.io.StringWriter
 
-class ScalaEntitySerializerTest extends CompileTestUtils {
+class ScalaEntitySerializerTest {
 
   var entityType: EntityType = null
 
@@ -69,6 +69,6 @@ class ScalaEntitySerializerTest extends CompileTestUtils {
     serializer.serialize(entityType, SimpleSerializerConfig.DEFAULT, new ScalaWriter(writer))
     val str = writer.toString()
     //System.err.println(str);
-    assertCompileSuccess(str)
+    CompileTestUtils.assertCompileSuccess(str)
   }
 }
\ No newline at end of file
diff --git a/querydsl-scala/src/test/scala/com/querydsl/scala/sql/JDBCIntegrationTest.scala b/querydsl-scala/src/test/scala/com/querydsl/scala/sql/JDBCIntegrationTest.scala
index 92bc42f70..8fe1e2296 100644
--- a/querydsl-scala/src/test/scala/com/querydsl/scala/sql/JDBCIntegrationTest.scala
+++ b/querydsl-scala/src/test/scala/com/querydsl/scala/sql/JDBCIntegrationTest.scala
@@ -24,7 +24,7 @@ import com.querydsl.sql.codegen._
 import com.querydsl.sql.dml._
 import com.querydsl.scala.Helpers._
 
-class JDBCIntegrationTest extends CompileTestUtils with SQLHelpers {
+class JDBCIntegrationTest extends SQLHelpers {
     
   val survey = QSurvey
   val employee = QEmployee
@@ -82,7 +82,7 @@ class JDBCIntegrationTest extends CompileTestUtils with SQLHelpers {
     exporter.setSchemaPattern("PUBLIC")
     exporter.export(connection.getMetaData)
 
-    assertCompileSuccess(recursiveFileList(directory))
+    CompileTestUtils.assertCompileSuccess(directory)
   }
 
   @Test
@@ -101,7 +101,7 @@ class JDBCIntegrationTest extends CompileTestUtils with SQLHelpers {
     exporter.setSchemaPattern("PUBLIC")
     exporter.export(connection.getMetaData)
 
-    assertCompileSuccessCombined(recursiveFileList(directory))
+    CompileTestUtils.assertCompileSuccessCombined(directory)
   }
     
   @Test
diff --git a/querydsl-scala/src/test/scala/com/querydsl/scala/sql/MetaDataExporterTest.scala b/querydsl-scala/src/test/scala/com/querydsl/scala/sql/MetaDataExporterTest.scala
index 23866ee39..5ea3f46a5 100644
--- a/querydsl-scala/src/test/scala/com/querydsl/scala/sql/MetaDataExporterTest.scala
+++ b/querydsl-scala/src/test/scala/com/querydsl/scala/sql/MetaDataExporterTest.scala
@@ -16,7 +16,7 @@ import scala.collection.JavaConversions._
 
 import com.querydsl.scala._
 
-class MetaDataExporterTest extends CompileTestUtils {
+class MetaDataExporterTest {
         
     var connection: java.sql.Connection = _
     
@@ -48,7 +48,6 @@ class MetaDataExporterTest extends CompileTestUtils {
                     CONSTRAINT PK_employee PRIMARY KEY (id),
                     CONSTRAINT FK_superior FOREIGN KEY (superior_id) REFERENCES employee(id))""")
 
-
             // table with count column
             stmt.execute("create table count_table(count int)")
 
@@ -78,8 +77,8 @@ class MetaDataExporterTest extends CompileTestUtils {
         exporter.setCreateScalaSources(true)
         exporter.setTypeMappings(ScalaTypeMappings.create)
         exporter.export(connection.getMetaData)
-        
-        assertCompileSuccess(recursiveFileList(directory))
+
+        CompileTestUtils.assertCompileSuccess(directory)
     }
     
     @Test
@@ -98,7 +97,7 @@ class MetaDataExporterTest extends CompileTestUtils {
         exporter.setTypeMappings(ScalaTypeMappings.create)
         exporter.export(connection.getMetaData)
 
-        assertCompileSuccessCombined(recursiveFileList(directory))
+        CompileTestUtils.assertCompileSuccessCombined(directory)
     }
     
     @Test
@@ -117,7 +116,7 @@ class MetaDataExporterTest extends CompileTestUtils {
         exporter.setTypeMappings(ScalaTypeMappings.create)
         exporter.export(connection.getMetaData)
 
-        assertCompileSuccess(recursiveFileList(directory))       
+        CompileTestUtils.assertCompileSuccess(directory)
     }    
     
     @Test
@@ -137,7 +136,7 @@ class MetaDataExporterTest extends CompileTestUtils {
         exporter.setTypeMappings(ScalaTypeMappings.create)
         exporter.export(connection.getMetaData)
 
-        assertCompileSuccessCombined(recursiveFileList(directory))
+        CompileTestUtils.assertCompileSuccessCombined(directory)
     }
     
 }
\ No newline at end of file
diff --git a/querydsl-scala/src/test/scala/com/querydsl/scala/sql/MetaDataSerializerTest.scala b/querydsl-scala/src/test/scala/com/querydsl/scala/sql/ScalaMetaDataSerializerTest.scala
similarity index 100%
rename from querydsl-scala/src/test/scala/com/querydsl/scala/sql/MetaDataSerializerTest.scala
rename to querydsl-scala/src/test/scala/com/querydsl/scala/sql/ScalaMetaDataSerializerTest.scala