Eclipse should be launched with the Java SE installed from the product installation CD. Because many products are Java -based, multiple Java SE installations may already exist on your system. The following steps ensure the correct Java SE is used.
The boot class path can be set as a JVM parameter. For example:
-Xbootclasspath/p: %CURAMSDEJ%\lib\xalan-2.7.1.jar; %CURAMSDEJ%\lib\serializer-2.7.1.jar;%CURAMSDEJ%\lib\xerces-2.9.1.jar