How do I get latest PDI Java API to integrate with Web Applications. The one that I have (pdi-open-3.0.4-GA) does not have classes that are being used in KettleComponent.java class.

Code:
 
org.pentaho.core.connection.memory.MemoryMetaData;
org.pentaho.core.connection.memory.MemoryResultSet;
org.pentaho.core.solution.IActionResource;
org.pentaho.core.system.PentahoSystem;
I read some one saying they are in BI Suite installation... but I do not want to install whole thing...and would rather looking for "Jar" files.