Defect Fixes and optimization for YANG translator.

Change-Id: I974a968f3c41e1abea9f2567aceb3d523645d0ae
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/plugin/manager/YangUtilManager.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/plugin/manager/YangUtilManager.java
index 3373c65..27e5aa0 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/plugin/manager/YangUtilManager.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/plugin/manager/YangUtilManager.java
@@ -36,12 +36,12 @@
 import static org.apache.maven.plugins.annotations.LifecyclePhase.GENERATE_SOURCES;
 import static org.apache.maven.plugins.annotations.ResolutionScope.COMPILE;
 import static org.onosproject.yangutils.translator.tojava.JavaCodeGeneratorUtil.generateJavaCode;
+import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getPackageDirPathFromJavaJPackage;
 import static org.onosproject.yangutils.utils.UtilConstants.DEFAULT_BASE_PKG;
 import static org.onosproject.yangutils.utils.UtilConstants.NEW_LINE;
 import static org.onosproject.yangutils.utils.UtilConstants.SLASH;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.addToSource;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.clean;
-import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.convertPkgToPath;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.copyYangFilesToTarget;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.getDirectory;
 
@@ -89,7 +89,7 @@
     @Component
     private BuildContext context;
 
-    private static final String DEFAULT_PKG = SLASH + convertPkgToPath(DEFAULT_BASE_PKG);
+    private static final String DEFAULT_PKG = SLASH + getPackageDirPathFromJavaJPackage(DEFAULT_BASE_PKG);
 
     private YangUtilsParser yangUtilsParser = new YangUtilsParserManager();
     private String searchDir;