There is a name space mismatch between the on-entry scripts(<script> created from the web designer and those created from eclipse. Due to this, when we save a process with on-entry actions from eclipse to guvnor, the process doesn't get saved proerly.

xml from eclipse:
<definitions id="Definition"
targetNamespace="http://www.jboss.org/drools"
typeLanguage="http://www.java.com/javaTypes"
expressionLanguage="http://www.mvel.org/2.0"
xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.omg.org/spec/BPMN/20100524/MODEL BPMN20.xsd"
xmlns:g="http://www.jboss.org/drools/flow/gpd"
xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI"
xmlns:dc="http://www.omg.org/spec/DD/20100524/DC"
xmlns:di="http://www.omg.org/spec/DD/20100524/DI"
xmlns:tns="http://www.jboss.org/drools">
....
....

<extensionElements>
<tns:onEntry-script scriptFormat="http://www.java.com/java">
<script>System.out.println("Inside task1 of test1 process");</script>
</tns:onEntry-script>
</extensionElements>

XML from designer:
<?xml version="1.0" encoding="UTF-8"?>
<bpmn2:definitions xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.omg.org/bpmn20" xmlns:bpmn2="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:dc="http://www.omg.org/spec/DD/20100524/DC" xmlns:di="http://www.omg.org/spec/DD/20100524/DI" xmlns:drools="http://www.jboss.org/drools" id="_LoFNkNTEEeGK1qo_QQKeyQ" xsi:schemaLocation="http://www.omg.org/spec/BPMN/20100524/MODEL BPMN20.xsd" targetNamespace="http://www.omg.org/bpmn20">
<bpmn2:extensionElements>
<drools:onEntry-script scriptFormat="http://www.java.com/java">
<drools:script><![CDATA[System.out.println("Inside task 1 of test process");]]></drools:script>
</drools:onEntry-script>
</bpmn2:extensionElements>