Thanks for the quick reply kukeltje. I'm really getting nuts with this. Here's the log, please let me know if is enough for you.
By the way, i've tried the code the same way than I, and the result was the same.
13:37:04,750 DEBUG [DefaultSaveOrUpdateEventListener] saving transient instance
13:37:04,750 DEBUG [AbstractSaveEventListener] saving [org.jbpm.graph.exe.ProcessInstance#<null>]
13:37:04,750 DEBUG [AbstractSaveEventListener] executing insertions
13:37:04,750 DEBUG [Cascade] processing cascade ACTION_SAVE_UPDATE for: org.jbpm.graph.exe.ProcessInstance
13:37:04,750 DEBUG [CascadingAction] cascading to saveOrUpdate: org.jbpm.graph.exe.Token
13:37:05,250 DEBUG [VersionValue] version unsaved-value strategy UNDEFINED
13:37:05,250 DEBUG [IdentifierValue] id unsaved-value: 0
13:37:05,250 DEBUG [AbstractSaveEventListener] transient instance of: org.jbpm.graph.exe.Token
13:37:05,250 DEBUG [DefaultSaveOrUpdateEventListener] saving transient instance
13:37:05,250 DEBUG [AbstractSaveEventListener] saving [org.jbpm.graph.exe.Token#<null>]
13:37:05,250 DEBUG [AbstractSaveEventListener] executing insertions
13:37:05,250 DEBUG [Cascade] processing cascade ACTION_SAVE_UPDATE for: org.jbpm.graph.exe.Token
13:37:05,750 DEBUG [Cascade] done processing cascade ACTION_SAVE_UPDATE for: org.jbpm.graph.exe.Token
13:37:05,750 DEBUG [Versioning] using initial version: 0
13:37:05,781 DEBUG [AbstractSaveEventListener] executing identity-insert immediately
13:37:05,781 DEBUG [AbstractEntityPersister] Inserting entity: org.jbpm.graph.exe.Token (native id)
13:37:05,781 DEBUG [AbstractEntityPersister] Version: 0
13:37:05,781 DEBUG [AbstractBatcher] about to open PreparedStatement (open PreparedStatements: 0, globally: 0)
13:37:06,250 DEBUG [SQL] insert into JBPM_TOKEN (VERSION_, NAME_, START_, END_, NODEENTER_, NEXTLOGINDEX_, ISABLETOREACTIVATEPARENT_, ISTERMINATIONIMPLICIT_, ISSUSPENDED_, LOCK_, NODE_, PROCESSINSTANCE_, PARENT_, SUBPROCESSINSTANCE_) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
13:37:06,250 DEBUG [AbstractBatcher] preparing statement
13:37:06,250 DEBUG [AbstractEntityPersister] Dehydrating entity: [org.jbpm.graph.exe.Token#<null>]
13:37:06,250 DEBUG [IntegerType] binding '0' to parameter: 1
13:37:06,250 DEBUG [StringType] binding null to parameter: 2
13:37:06,250 DEBUG [TimestampType] binding '2007-05-22 13:37:04' to parameter: 3
13:37:06,265 DEBUG [TimestampType] binding null to parameter: 4
13:37:06,265 DEBUG [TimestampType] binding null to parameter: 5
13:37:06,265 DEBUG [IntegerType] binding '0' to parameter: 6
13:37:06,265 DEBUG [BooleanType] binding 'true' to parameter: 7
13:37:06,750 DEBUG [BooleanType] binding 'false' to parameter: 8
13:37:06,750 DEBUG [BooleanType] binding 'false' to parameter: 9
13:37:06,750 DEBUG [StringType] binding null to parameter: 10
13:37:06,750 DEBUG [LongType] binding null to parameter: 11
13:37:06,750 DEBUG [LongType] binding null to parameter: 12
13:37:06,750 DEBUG [LongType] binding null to parameter: 13
13:37:06,750 DEBUG [LongType] binding null to parameter: 14
13:37:06,765 DEBUG [IdentifierGeneratorFactory] Natively generated identity: 90
13:37:07,250 DEBUG [AbstractBatcher] about to close PreparedStatement (open PreparedStatements: 1, globally: 1)
13:37:07,250 DEBUG [AbstractBatcher] closing statement
13:37:07,250 DEBUG [Cascade] processing cascade ACTION_SAVE_UPDATE for: org.jbpm.graph.exe.Token
13:37:07,250 DEBUG [Cascade] done processing cascade ACTION_SAVE_UPDATE for: org.jbpm.graph.exe.Token
13:37:07,250 DEBUG [Cascade] done processing cascade ACTION_SAVE_UPDATE for: org.jbpm.graph.exe.ProcessInstance
13:37:07,250 DEBUG [Versioning] using initial version: 0
13:37:07,250 DEBUG [AbstractSaveEventListener] executing identity-insert immediately
13:37:07,250 DEBUG [AbstractEntityPersister] Inserting entity: org.jbpm.graph.exe.ProcessInstance (native id)
13:37:07,750 DEBUG [AbstractEntityPersister] Version: 0
13:37:07,750 DEBUG [AbstractBatcher] about to open PreparedStatement (open PreparedStatements: 0, globally: 0)
13:37:07,750 DEBUG [SQL] insert into JBPM_PROCESSINSTANCE (VERSION_, KEY_, START_, END_, ISSUSPENDED_, PROCESSDEFINITION_, ROOTTOKEN_, SUPERPROCESSTOKEN_) values (?, ?, ?, ?, ?, ?, ?, ?)
13:37:07,750 DEBUG [AbstractBatcher] preparing statement
13:37:07,750 DEBUG [AbstractEntityPersister] Dehydrating entity: [org.jbpm.graph.exe.ProcessInstance#<null>]
13:37:07,750 DEBUG [IntegerType] binding '0' to parameter: 1
13:37:08,250 DEBUG [StringType] binding null to parameter: 2
13:37:08,250 DEBUG [TimestampType] binding '2007-05-22 13:37:04' to parameter: 3
13:37:08,250 DEBUG [TimestampType] binding null to parameter: 4
13:37:08,250 DEBUG [BooleanType] binding 'false' to parameter: 5
13:37:08,250 DEBUG [LongType] binding '15' to parameter: 6
13:37:08,250 DEBUG [LongType] binding '90' to parameter: 7
13:37:08,250 DEBUG [LongType] binding null to parameter: 8
13:37:08,250 DEBUG [IdentifierGeneratorFactory] Natively generated identity: 90
13:37:08,750 DEBUG [AbstractBatcher] about to close PreparedStatement (open PreparedStatements: 1, globally: 1)
13:37:08,750 DEBUG [AbstractBatcher] closing statement
13:37:08,750 DEBUG [Cascade] processing cascade ACTION_SAVE_UPDATE for: org.jbpm.graph.exe.ProcessInstance
13:37:08,750 DEBUG [Cascade] done processing cascade ACTION_SAVE_UPDATE for: org.jbpm.graph.exe.ProcessInstance
13:37:08,750 DEBUG [DefaultInitializeCollectionEventListener] initializing collection [org.jbpm.graph.def.ProcessDefinition.definitions#15]
13:37:08,750 DEBUG [DefaultInitializeCollectionEventListener] checking second-level cache
13:37:08,750 DEBUG [NonstrictReadWriteCache] Cache lookup: org.jbpm.graph.def.ProcessDefinition.definitions#15
13:37:09,250 DEBUG [NonstrictReadWriteCache] Cache miss
13:37:09,250 DEBUG [DefaultInitializeCollectionEventListener] collection not cached
13:37:09,250 DEBUG [Loader] loading collection: [org.jbpm.graph.def.ProcessDefinition.definitions#15]
13:37:09,250 DEBUG [AbstractBatcher] about to open PreparedStatement (open PreparedStatements: 0, globally: 0)
13:37:09,250 DEBUG [SQL] select definition0_.PROCESSDEFINITION_ as PROCESSD4_1_, definition0_.ID_ as ID1_1_, definition0_.NAME_ as NAME3_1_, definition0_.ID_ as ID1_133_0_, definition0_.NAME_ as NAME3_133_0_, definition0_.PROCESSDEFINITION_ as PROCESSD4_133_0_, definition0_.STARTTASK_ as STARTTASK5_133_0_, definition0_.CLASS_ as CLASS2_133_0_ from JBPM_MODULEDEFINITION definition0_ where definition0_.PROCESSDEFINITION_=?
13:37:09,750 DEBUG [AbstractBatcher] preparing statement
13:37:09,750 DEBUG [LongType] binding '15' to parameter: 1
13:37:09,765 DEBUG [AbstractBatcher] about to open ResultSet (open ResultSets: 0, globally: 0)
13:37:09,765 DEBUG [Loader] result set contains (possibly empty) collection: [org.jbpm.graph.def.ProcessDefinition.definitions#15]
13:37:09,765 DEBUG [CollectionLoadContext] uninitialized collection: initializing
13:37:09,765 DEBUG [Loader] processing result set
13:37:09,765 DEBUG [Loader] done processing result set (0 rows)
13:37:09,765 DEBUG [AbstractBatcher] about to close ResultSet (open ResultSets: 1, globally: 1)
13:37:10,250 DEBUG [AbstractBatcher] about to close PreparedStatement (open PreparedStatements: 1, globally: 1)
13:37:10,250 DEBUG [AbstractBatcher] closing statement
13:37:10,250 DEBUG [Loader] total objects hydrated: 0
13:37:10,250 DEBUG [CollectionLoadContext] 1 collections were found in result set for role: org.jbpm.graph.def.ProcessDefinition.definitions
13:37:10,250 DEBUG [CollectionLoadContext] Caching collection: [org.jbpm.graph.def.ProcessDefinition.definitions#15]
13:37:10,250 DEBUG [NonstrictReadWriteCache] Caching: org.jbpm.graph.def.ProcessDefinition.definitions#15
13:37:10,250 DEBUG [CollectionLoadContext] collection fully initialized: [org.jbpm.graph.def.ProcessDefinition.definitions#15]
13:37:10,250 DEBUG [CollectionLoadContext] 1 collections initialized for role: org.jbpm.graph.def.ProcessDefinition.definitions
13:37:10,750 DEBUG [StatefulPersistenceContext] initializing non-lazy collections
13:37:10,750 DEBUG [Loader] done loading collection
13:37:10,750 DEBUG [DefaultInitializeCollectionEventListener] collection initialized
13:37:10,750 ERROR [STDERR] org.jbpm.JbpmException: token 'Token(/)' can't be signalled cause it is currently not positioned in a node
13:37:10,750 ERROR [STDERR] at org.jbpm.graph.exe.Token.signal(Token.java:134)
13:37:10,750 ERROR [STDERR] at org.jbpm.graph.exe.ProcessInstance.signal(ProcessInstance.java:251)
13:37:10,765 ERROR [STDERR] at pep.workflow.console.servlets.UploadServlet.processRequest(UploadServlet.java:61)
13:37:10,765 ERROR [STDERR] at pep.workflow.console.servlets.UploadServlet.doGet(UploadServlet.java:123)
13:37:10,765 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
13:37:10,765 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
13:37:10,765 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
13:37:10,765 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
13:37:10,765 ERROR [STDERR] at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
13:37:10,765 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
13:37:10,765 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
13:37:11,265 ERROR [STDERR] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
13:37:11,265 ERROR [STDERR] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
13:37:11,265 ERROR [STDERR] at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
13:37:11,265 ERROR [STDERR] at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
13:37:11,265 ERROR [STDERR] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
13:37:11,765 ERROR [STDERR] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
13:37:11,765 ERROR [STDERR] at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
13:37:11,765 ERROR [STDERR] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
13:37:11,765 ERROR [STDERR] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
13:37:11,765 ERROR [STDERR] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
13:37:11,765 ERROR [STDERR] at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
13:37:12,265 ERROR [STDERR] at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
13:37:12,265 ERROR [STDERR] at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
13:37:12,265 ERROR [STDERR] at java.lang.Thread.run(Thread.java:595)
13:37:12,265 DEBUG [JbpmContext] closing JbpmContext
13:37:12,265 DEBUG [Services] closing service 'persistence': org.jbpm.persistence.db.DbPersistenceService@9468ca
13:37:12,265 DEBUG [DbPersistenceService] committing hibernate transaction
13:37:12,765 DEBUG [JDBCTransaction] commit
13:37:12,765 DEBUG [SessionImpl] automatically flushing session