When JBoss Tools deploying my seam project, file jboss-seam.jar is located at:
server/default/deploy
----------------------------MyProject-ear.ear (folder)
------------------------------------------jboss-seam.jar (folder, not .jar file)
---------------------------------------------------------------jboss-seam.jar

So, it print out these exceptions when I visite the home.seam:

14:40:53,090 INFO [Contexts] starting up: org.jboss.seam.security.identity
14:40:53,814 INFO [RuleBase] parsing rules: /security.drl
14:40:54,199 INFO [Contexts] starting up: org.jboss.seam.web.session
14:40:54,214 ERROR [SeamPhaseListener] uncaught exception
java.lang.IllegalStateException: Could not start transaction
at org.jboss.seam.jsf.SeamPhaseListener.begin(SeamPhaseListener.java:592)
at org.jboss.seam.jsf.SeamPhaseListener.handleTransactionsBeforePhase(SeamPhaseListener.java:323)
at org.jboss.seam.jsf.SeamPhaseListener.beforeServletPhase(SeamPhaseListener.java:140)
at org.jboss.seam.jsf.SeamPhaseListener.beforePhase(SeamPhaseListener.java:114)
at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:222)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:244)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
at java.lang.Thread.run(Thread.java:595)
Caused by: org.jboss.seam.InstantiationException: Could not instantiate Seam component: org.jboss.seam.transaction.synchronizations
at org.jboss.seam.Component.newInstance(Component.java:1970)
at org.jboss.seam.Component.getInstance(Component.java:1873)
at org.jboss.seam.Component.getInstance(Component.java:1852)
at org.jboss.seam.Component.getInstance(Component.java:1846)
at org.jboss.seam.transaction.AbstractUserTransaction.getSynchronizations(AbstractUserTransaction.java:79)
at org.jboss.seam.transaction.UTTransaction.begin(UTTransaction.java:40)
at org.jboss.seam.jsf.SeamPhaseListener.begin(SeamPhaseListener.java:587)
... 43 more
Caused by: javax.naming.NameNotFoundException: EjbSynchronizations not bound
at org.jnp.server.NamingServer.getBinding(NamingServer.java:529)
at org.jnp.server.NamingServer.getBinding(NamingServer.java:537)
at org.jnp.server.NamingServer.getObject(NamingServer.java:543)
at org.jnp.server.NamingServer.lookup(NamingServer.java:267)
at org.jnp.server.NamingServer.lookup(NamingServer.java:270)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:667)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:627)
at javax.naming.InitialContext.lookup(InitialContext.java:351)
at org.jboss.seam.Component.instantiateSessionBean(Component.java:1287)
at org.jboss.seam.Component.instantiate(Component.java:1273)
at org.jboss.seam.Component.newInstance(Component.java:1966)
... 49 more
14:40:54,233 ERROR [SeamPhaseListener] swallowing exception

------------------------------------------------------------------
Here is my application.xml:

<?xml version="1.0" encoding="UTF-8"?>
<application xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/application_5.xsd"
version="5">

<display-name>FDose-ear</display-name>

<module>
<web>
<web-uri>FDose.war</web-uri>
<context-root>/FDose</context-root>
</web>
</module>

<module>
<ejb>FDose-ejb.jar</ejb>
</module>

<module>
<ejb>jboss-seam.jar</ejb>
</module>

</application>
------------------------------------------------------------------

My components.xml:

<?xml version="1.0" encoding="UTF-8"?>
<components xmlns="http://jboss.com/products/seam/components"
xmlns:core="http://jboss.com/products/seam/core"
xmlns:persistence="http://jboss.com/products/seam/persistence"
xmlns:drools="http://jboss.com/products/seam/drools"
xmlns:bpm="http://jboss.com/products/seam/bpm"
xmlns:security="http://jboss.com/products/seam/security"
xmlns:mail="http://jboss.com/products/seam/mail"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:transaction="http://jboss.com/products/seam/transaction"
xsi:schemaLocation=
"http://jboss.com/products/seam/core http://jboss.com/products/seam/core-2.0.xsd
http://jboss.com/products/seam/persistence http://jboss.com/products/seam/persistence-2.0.xsd
http://jboss.com/products/seam/drools http://jboss.com/products/seam/drools-2.0.xsd
http://jboss.com/products/seam/bpm http://jboss.com/products/seam/bpm-2.0.xsd
http://jboss.com/products/seam/security http://jboss.com/products/seam/security-2.0.xsd
http://jboss.com/products/seam/mail http://jboss.com/products/seam/mail-2.0.xsd
http://jboss.com/products/seam/transaction http://jboss.com/products/seam/transaction-2.0.xsd
http://jboss.com/products/seam/components http://jboss.com/products/seam/components-2.0.xsd">

<core:init debug="true" jndi-pattern="@jndiPattern@"/>

<core:manager concurrent-request-timeout="500"
conversation-timeout="120000"
conversation-id-parameter="cid"
parent-conversation-id-parameter="pid"/>

<persistence:managed-persistence-context name="entityManager"
auto-create="true"
persistence-unit-jndi-name="java:/FDoseEntityManagerFactory"/>

<drools:rule-base name="securityRules">
<drools:rule-files>
<value>/security.drl</value>
</drools:rule-files>
</drools:rule-base>

<security:identity security-rules="#

{securityRules}

" authenticate-method="#

{authenticator.authenticate}

" remember-me="true"/>

<event type="org.jboss.seam.security.notLoggedIn">
<action execute="#

{redirect.captureCurrentView}

"/>
</event>
<event type="org.jboss.seam.security.loginSuccessful">
<action execute="#

{redirect.returnToCapturedView}

"/>
</event>

<mail:mail-session host="localhost" port="2525" username="test" password="test" />

<!-- For use with jBPM pageflow or process management -->
<!--
<bpm:jbpm>
<bpm:process-definitions></bpm:process-definitions>
<bpm:pageflow-definitions></bpm:pageflow-definitions>
</bpm:jbpm>
-->

<transaction:ejb-transaction/>
</components>
------------------------------------------------------------------

My -ds.xml:
<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE datasources
PUBLIC "-//JBoss//DTD JBOSS JCA Config 1.5//EN"
"http://www.jboss.org/j2ee/dtd/jboss-ds_1_5.dtd">

<datasources>

<xa-datasource>
<jndi-name>TestDatasource</jndi-name>
<xa-datasource-class>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</xa-datasource-class>
<xa-datasource-property name="URL">jdbc:mysql://localhost:3306/test</xa-datasource-property>
<xa-datasource-property name="User">test</xa-datasource-property>
<xa-datasource-property name="Password">test</xa-datasource-property>
<track-connection-by-tx/>
<new-connection-sql>set autocommit=1</new-connection-sql>
<exception-sorter-class-name>org.jboss.resource.adapter.jdbc.vendor.MySQLExceptionSorter</exception-sorter-class-name>
<transaction-isolation>TRANSACTION_READ_COMMITTED</transaction-isolation>
<metadata>
<type-mapping>mySQL</type-mapping>
</metadata>
</xa-datasource>

<xa-datasource>
<jndi-name>TestUserDatasource</jndi-name>
<xa-datasource-class>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</xa-datasource-class>
<xa-datasource-property name="URL">jdbc:mysql://localhost:3306/user_test</xa-datasource-property>
<xa-datasource-property name="User">test</xa-datasource-property>
<xa-datasource-property name="Password">test</xa-datasource-property>
<track-connection-by-tx/>
<new-connection-sql>set autocommit=1</new-connection-sql>
<exception-sorter-class-name>org.jboss.resource.adapter.jdbc.vendor.MySQLExceptionSorter</exception-sorter-class-name>
<transaction-isolation>TRANSACTION_READ_COMMITTED</transaction-isolation>
<metadata>
<type-mapping>mySQL</type-mapping>
</metadata>
</xa-datasource>
</datasources>

This issue could be fixed if I move file "jboss-seam.jar" out of folde "jboss-seam.jar".
What I have to do if I want to deploy my application as archived .ear file, not as folder?