Birt report not working in Weblogic

sajinb

<p>Enivronment : weblogic 11 with jdk7 and birt jar version 4.2.2</p><p>One of the BIRT report is not working in above environment.Few other report works.</p><p>But this same report works in Tomcat 7 and jdk.I get the below exception.</p><p>[color=#000000;][font="'courier new';"]<span style="font-size:9pt;">org.eclipse.birt.report.engine.api.EngineException: Not able to evaluate sort, grouping, filter or binding expression. A data field that is used in the expression does not exist in the dataset.<br />
Invalid field name: redcap-op-services::Grant Year OP.<br />
 at org.eclipse.birt.report.engine.executor.ExtendedGenerateExecutor.execute(ExtendedGenerateExecutor.java:70)<br />
 at org.eclipse.birt.report.engine.executor.ExtendedItemExecutor.execute(ExtendedItemExecutor.java:62)<br />
 at org.eclipse.birt.report.engine.internal.executor.wrap.WrappedReportItemExecutor.execute(WrappedReportItemExecutor.java:46)<br />
 at org.eclipse.birt.report.engine.internal.executor.emitter.ReportItemEmitterExecutor.execute(ReportItemEmitterExecutor.java:46)<br />
 at [/color][/font]</span></p>