java.lang.NoClassDefFoundError: com/teradata/jdbc/jdbc_4/ifsupport/LocalEscapeFunctions

<Sep 12, 2014 6:28:17 AM UTC> <Error> <HTTP> <BEA-101017> <[ServletContext@1839328839[app:xxxx module:xxx path:/xxx  spec-version:2.5]] Root cause of ServletException.
java.lang.NoClassDefFoundError: com/teradata/jdbc/jdbc_4/ifsupport/LocalEscapeFunctions
       at java.lang.ClassLoader.defineClass1(Native Method)
       at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
       at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
       at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
       at weblogic.utils.classloaders.GenericClassLoader.defineClass(GenericClassLoader.java:343)
       Truncated. see log file for complete stacktrace
Caused By: java.lang.ClassNotFoundException: com.teradata.jdbc.jdbc_4.ifsupport.LocalEscapeFunctions
       at weblogic.utils.classloaders.GenericClassLoader.findLocalClass(GenericClassLoader.java:297)
       at weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader.java:270)
       at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
       at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
       at weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoader.java:179)
       Truncated. see log file for complete stacktrace

Solution:- 

we need to set  WEBLOGIC_CLASSPATH in commEnv.sh file.

Example:- 

WEBLOGIC_CLASSPATH="${JAVA_HOME}/lib/tools.jar${CLASSPATHSEP}${WL_HOME}/server/lib/weblogic_sp.jar${CLASSPATHSEP}${WL_HOME}/server/lib/weblogic.jar${CLASSPATHSEP}${FEATURES_DIR}/weblogic.server.modules_10.3.5.0.jar${CLASSPATHSEP}${WL_HOME}/server/lib/webservices.jar${CLASSPATHSEP}${ANT_HOME}/lib/ant-all.jar${CLASSPATHSEP}${ANT_CONTRIB}/lib/ant-contrib.jar${CLASSPATHSEP}${WL_HOME}/server/lib/tdgssconfig.jar${CLASSPATHSEP}${WL_HOME}/server/lib/terajdbc4.jar"

export WEBLOGIC_CLASSPATH

after adding class path like above restart server.