I get the exact same error. It acts like it's starting...then just stops cold. Here's some more of the log message if it'll help: =============================================================================== JBoss Bootstrap Environment JBOSS_HOME: C:\jbpm-jpdl-3.2.3\server JAVA: C:\Program Files\Java\jdk1.6.0_04\bin\java JAVA_OPTS: -Dprogram.name=run.bat -server -Xms128m -Xmx512m -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000 CLASSPATH: C:\Program Files\Java\jdk1.6.0_04\lib\tools.jar;C:\jbpm-jpdl-3.2.3\server\bin\run.jar =============================================================================== 12:18:44,077 INFO [Server] Starting JBoss (MX MicroKernel)... 12:18:44,077 INFO [Server] Release ID: JBoss [Trinity] 4.2.2.GA (build: SVNTag=JBoss_4_2_2_GA date=200710221139) 12:18:44,077 INFO [Server] Home Dir: C:\jbpm-jpdl-3.2.3\server 12:18:44,077 INFO [Server] Home URL: file:/C:/jbpm-jpdl-3.2.3/server/ 12:18:44,077 INFO [Server] Patch URL: null 12:18:44,077 INFO [Server] Server Name: jbpm 12:18:44,077 INFO [Server] Server Home Dir: C:\jbpm-jpdl-3.2.3\server\server\jbpm 12:18:44,077 INFO [Server] Server Home URL: file:/C:/jbpm-jpdl-3.2.3/server/server/jbpm/ 12:18:44,077 INFO [Server] Server Log Dir: C:\jbpm-jpdl-3.2.3\server\server\jbpm\log 12:18:44,077 INFO [Server] Server Temp Dir: C:\jbpm-jpdl-3.2.3\server\server\jbpm\tmp 12:18:44,077 INFO [Server] Root Deployment Filename: jboss-service.xml 12:18:44,576 INFO [ServerInfo] Java version: 1.6.0_04,Sun Microsystems Inc. 12:18:44,576 INFO [ServerInfo] Java VM: Java HotSpot(TM) Server VM 10.0-b19,Sun Microsystems Inc. 12:18:44,576 INFO [ServerInfo] OS-System: Windows XP 5.1,x86 12:18:45,294 INFO [Server] Core system initialized .........etc, etc................. then here are the last messages before it stops: ................................... 12:19:10,893 INFO [NamingHelper] JNDI InitialContext properties:{} 12:19:10,893 INFO [DatasourceConnectionProvider] Using datasource: java:comp/env/jdbc/JbpmDataSource 12:19:10,909 INFO [SettingsFactory] RDBMS: HSQL Database Engine, version: 1.8.0 12:19:10,909 INFO [SettingsFactory] JDBC driver: HSQL Database Engine Driver, version: 1.8.0 12:19:10,924 INFO [Dialect] Using dialect: org.hibernate.dialect.HSQLDialect 12:19:10,924 INFO [TransactionFactoryFactory] Using default transaction strategy (direct JDBC transactions) 12:19:10,940 INFO [TransactionManagerLookupFactory] No TransactionManagerLookup configured (in JTA environment, use of read-write or transactional second-level cache is not recommended) 12:19:10,940 INFO [SettingsFactory] Automatic flush during beforeCompletion(): disabled 12:19:10,940 INFO [SettingsFactory] Automatic session close at end of transaction: disabled 12:19:10,940 INFO [SettingsFactory] JDBC batch size: 15 12:19:10,940 INFO [SettingsFactory] JDBC batch updates for versioned data: disabled 12:19:10,940 INFO [SettingsFactory] Scrollable result sets: enabled 12:19:10,940 INFO [SettingsFactory] JDBC3 getGeneratedKeys(): disabled 12:19:10,940 INFO [SettingsFactory] Connection release mode: auto 12:19:10,940 INFO [SettingsFactory] Default batch fetch size: 1 12:19:10,940 INFO [SettingsFactory] Generate SQL with comments: disabled 12:19:10,940 INFO [SettingsFactory] Order SQL updates by primary key: disabled 12:19:10,940 INFO [SettingsFactory] Order SQL inserts for batching: disabled 12:19:10,940 INFO [SettingsFactory] Query translator: org.hibernate.hql.ast.ASTQueryTranslatorFactory 12:19:10,940 INFO [ASTQueryTranslatorFactory] Using ASTQueryTranslatorFactory 12:19:10,940 INFO [SettingsFactory] Query language substitutions: {} 12:19:10,940 INFO [SettingsFactory] JPA-QL strict compliance: disabled 12:19:10,940 INFO [SettingsFactory] Second-level cache: enabled 12:19:10,940 INFO [SettingsFactory] Query cache: disabled 12:19:10,940 INFO [SettingsFactory] Cache provider: org.hibernate.cache.HashtableCacheProvider 12:19:10,940 INFO [SettingsFactory] Optimize cache for minimal puts: disabled 12:19:10,940 INFO [SettingsFactory] Structured second-level cache entries: disabled 12:19:10,971 INFO [SettingsFactory] Statistics: disabled 12:19:10,971 INFO [SettingsFactory] Deleted entity synthetic identifier rollback: disabled 12:19:10,971 INFO [SettingsFactory] Default entity-mode: pojo 12:19:10,971 INFO [SettingsFactory] Named query checking : enabled 12:19:11,002 INFO [SessionFactoryImpl] building session factory 12:19:12,111 INFO [SessionFactoryObjectFactory] Not binding factory to JNDI, no JNDI name configured View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4167139#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...