Raise business events from BPEL

How to raise business events from BPEL process?
Related questions -
1. Is it possible or good to address this by embedding Java code in BPEL process that raises the business event? If so, what additional jar files should be included?
2. Any links on API to raise the business events from Java code?
3. Any links that describe how to raise the business events from BPEL process?

Hi Guillaume,
Thanks for your reply.
Please find below environment details.
EBS 11.5.10,
Stand alone SOA Suite v10.1.3.1
Oracle Apps Adapter
I am trying to capture PO approval event ('oracle.apps.po.event.xmlpo') raised by BES in BPEL PM.
I see in the BPEL PM logs that there is a handshake happening between EBS-BES and BPEL PM. But after the handshake, some XML DOM parser errors are thrown.
I have pasted the error seen in BPEL PM log below
<2007-08-01 11:33:18,000> <INFO> <default.collaxa.cube.engine> <CubeEngine::loadAllProcesses>
26 processes have been loaded for BPEL domain "default".
<2007-08-01 11:34:18,750> <ERROR> <default.collaxa.cube.activation> <AQ Adapter::Inbound> MessageReader_readMessage: Received TranslationException
<2007-08-01 11:34:18,750> <ERROR> <default.collaxa.cube.activation> <AQ Adapter::Inbound>
ORABPEL-11211
DOM Parsing Exception in translator.
DOM parsing exception in inbound XSD translator while parsing InputStream.
Check the error stack and fix the cause of the error. Contact oracle support if error is not fixable.
     at oracle.tip.pc.services.translation.xlators.xsd.XSDTranslator.translateFromNative(XSDTranslator.java:139)
     at oracle.tip.adapter.aq.database.MessageReader.translateFromNative(MessageReader.java:1179)
     at oracle.tip.adapter.aq.database.MessageReader.readMessage(MessageReader.java:533)
     at oracle.tip.adapter.aq.inbound.AQActivationSpecDequeuer.run(AQActivationSpecDequeuer.java:189)
     at oracle.tip.adapter.fw.jca.work.WorkerJob.go(WorkerJob.java:51)
     at oracle.tip.adapter.fw.common.ThreadPool.run(ThreadPool.java:272)
     at java.lang.Thread.run(Thread.java:595)
Caused by: oracle.xml.parser.v2.XMLParseException: Start of root element expected.
     at oracle.xml.parser.v2.XMLError.flushErrors1(XMLError.java:320)
     at oracle.xml.parser.v2.NonValidatingParser.parseRootElement(NonValidatingParser.java:341)
     at oracle.xml.parser.v2.NonValidatingParser.parseDocument(NonValidatingParser.java:303)
     at oracle.xml.parser.v2.XMLParser.parse(XMLParser.java:291)
     at oracle.tip.pc.services.translation.xlators.xsd.XSDTranslator.translateFromNative(XSDTranslator.java:134)
     ... 6 more
<2007-08-01 11:34:18,750> <ERROR> <default.collaxa.cube.activation> <AQ Adapter::Inbound> MessageReader_readMessage: Received TranslationException
<2007-08-01 11:34:18,750> <ERROR> <default.collaxa.cube.activation> <AQ Adapter::Inbound>
ORABPEL-11211
DOM Parsing Exception in translator.
DOM parsing exception in inbound XSD translator while parsing InputStream.
Check the error stack and fix the cause of the error. Contact oracle support if error is not fixable.
     at oracle.tip.pc.services.translation.xlators.xsd.XSDTranslator.translateFromNative(XSDTranslator.java:139)
     at oracle.tip.adapter.aq.database.MessageReader.translateFromNative(MessageReader.java:1179)
     at oracle.tip.adapter.aq.database.MessageReader.readMessage(MessageReader.java:533)
     at oracle.tip.adapter.aq.inbound.AQActivationSpecDequeuer.run(AQActivationSpecDequeuer.java:189)
     at oracle.tip.adapter.fw.jca.work.WorkerJob.go(WorkerJob.java:51)
     at oracle.tip.adapter.fw.common.ThreadPool.run(ThreadPool.java:272)
     at java.lang.Thread.run(Thread.java:595)
Caused by: oracle.xml.parser.v2.XMLParseException: Start of root element expected.
     at oracle.xml.parser.v2.XMLError.flushErrors1(XMLError.java:320)
     at oracle.xml.parser.v2.NonValidatingParser.parseRootElement(NonValidatingParser.java:341)
     at oracle.xml.parser.v2.NonValidatingParser.parseDocument(NonValidatingParser.java:303)
     at oracle.xml.parser.v2.XMLParser.parse(XMLParser.java:291)
     at oracle.tip.pc.services.translation.xlators.xsd.XSDTranslator.translateFromNative(XSDTranslator.java:134)
     ... 6 more
From the initial assessment, it looks like the event schema defined in BPEL PM and BES event schema mismatch. But I do not know, how to correct it.
Please let me know, if you have any suggestions in overcoming this issue.

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