April 2010 - jboss-user - Jboss List Archives

Re: [jboss-user] [JBoss Microcontainer Development] - JBoss Reflect Performance Javassist vs Introspection

by Kabir Khan

Kabir Khan [http://community.jboss.org/people/kabir.khan%40jboss.com] replied to the discussion "JBoss Reflect Performance Javassist vs Introspection" To view the discussion, visit: http://community.jboss.org/message/537476#537476 -------------------------------------------------------------- What we generate is effectively something along the lines of public class JavassistMethod1 implements JavassistMethod { public Object invoke(Object target, Object[] args) throws Throwable { if (target == null) throw new IllegalArgumentException("Null target"); if (target instanceof SomeClass == false) throw new IllegalArgumentException("Wrong target"); if (args == null || args.length != 10) throw new IllegalArgumentException("Wrong number of parameters"); if (args[0] == null) throw new IllegalArgumentException("Parameter 1 cannot be null for SomeClass.someMethod(long, String)"); if (args[0] != null && args[0] instanceof Long == false) throw new IllegalArgumentException("Parameter 1 is not an instance of Long for SomeClass.someMethod(long, String)"); if (args[1] != null && args[1] instanceof String == false) throw new IllegalArgumentException("Parameter 2 is not an instance of String for SomeClass.someMethod(long, String)"); return ((SomeClass)target).someMethod(((Long)args[0]).longValue(), (String)args[1]); } } Disabling the parameter checking so we end up with this instead reduces the time spent in C from about 4.8s to 3.8s public class JavassistMethod1 implements JavassistMethod { public Object invoke(Object target, Object[] args) throws Throwable { return ((SomeClass)target).someMethod(((Long)args[0]).longValue(), (String)args[1]); } } Profiling this, for each JavassistMethod implementation the time taken is roughly 50% generating the bytecode for the method 30% Converting the bytecode to a byte array and creating the class 13% creating the constructor 6% setting the interfaces Maybe a better approach would be 1) to do the parameter checking in Javassist[Constructor/Method/Field]Info itself 2) to generate less classes? Something like: public class SomeBeanAccessor implements JavassistBeanAccessor { public Object newInstance(int index, Object[] args) throws Throwable { if (index == 0) return new SomeClass((String)args[0]); else if (index == 1) return new SomeClass((String)args[1]); return null; } public Object invoke(long hash, Object target, Object[] args) throws Throwable { if (hash == 121267912) return ((SomeClass)target).someMethod(((Long)args[0]).longValue(), (String)args[1]); if (hash == 128172981) return ((SomeClass)target).otherMethod(((Long)args[0]).longValue(), (String)args[1], (String)args[2]); } public Object get(String name, Object target) throws Throwable { if (name.equals("intField") return Integer.valueOf(((SomeClass)target).intField); if (name.equals("stringField") return ((SomeClass)target).stringField; } public void set(String name, Object target, Object value) throws Throwable { if (name.equals("intField") ((SomeClass)target).intField = ((Integer)value).intValue(); return; if (name.equals("stringField") ((SomeClass)target).stringField = (String)value; } } First call by Javassist[Constructor/Method/Field]Info to access the member would result in this being created for ALL members, and cached in JavassistTypeInfo. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/537476#537476] Start a new discussion in JBoss Microcontainer Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

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[jBPM] - Performance impact of large process variables

by Justin Hayes

Justin Hayes [http://community.jboss.org/people/justinhayes] created the discussion "Performance impact of large process variables" To view the discussion, visit: http://community.jboss.org/message/537475#537475 -------------------------------------------------------------- Is there a general guideline to go by when deciding the size of the data stored in process variables? I.e. if there is a large amount of data (on the order of 15kb) stored in process variables, will that have a really negative effect on performance? I know that some variables can be transient but that probably won't help too much. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/537475#537475] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

16 years

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[EJB 3.0 Development] - Stateful beans from 2 Jars - 1 persistence unit

by Nick Dodd

Nick Dodd [http://community.jboss.org/people/baronDodd] created the discussion "Stateful beans from 2 Jars - 1 persistence unit" To view the discussion, visit: http://community.jboss.org/message/537473#537473 -------------------------------------------------------------- I have a persistence unit named FOO inside a jar file as follows: <persistence-unit name="FOO"> <provider>org.hibernate.ejb.HibernatePersistence</provider> <jta-data-source>java:/MYDS</jta-data-source> <properties> <property name="hibernate.hbm2ddl.auto" value="update"/> </properties> <jar-file>file:../anotherDir/secondary.jar</jar-file> </persistence-unit> This jar contains several Entity Beans and Session Beans that use this persistence unit ok. As you can see I also have a second jar referenced in the persistence unit, it is another jar (not within an ear) that contains 1 more Entity bean and also 1 Session Bean. When I start the server +all+ tables are successfully created including the entity defined in the secondary jar. However - the Session Bean in the secondary jar is causing problems. public class SecondaryFacade implements SecondaryFacadeLocal, SecondaryFacadeRemote { ...... @PersistenceContext(unitName="FOO") protected EntityManager em; ...... ObjectName: persistence.units:unitName=FOO State: NOTYETINSTALLED Depends On Me: jboss.j2ee:service=EJB3,jar=secondary.jar,name= SecondaryFacade This issue may be related but not sure: http://community.jboss.org/message/344723#344723 http://community.jboss.org/message/344723#344723 Am running JBoss 4.3.0. What I am doing might not even be possible or legal but if so then why does it deploy the Entity Bean successfully but not the Session Bean? Many thanks -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/537473#537473] Start a new discussion in EJB 3.0 Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

16 years

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Re: [jboss-user] [JBoss Tools] - Error install JBoss Tools 3.1.GA in Galileo

by Denis Golovin

Denis Golovin [http://community.jboss.org/people/dgolovin] replied to the discussion "Error install JBoss Tools 3.1.GA in Galileo" To view the discussion, visit: http://community.jboss.org/message/537472#537472 -------------------------------------------------------------- That happens sometimes you just have to try it again later. If it doesn't help the workaround is to remove Galileo update site and add it back, then try to install JBoss Tools again. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/537472#537472] Start a new discussion in JBoss Tools at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

16 years

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[jBPM] - How send mail to "starter" user

by Mary Marlet

Mary Marlet [http://community.jboss.org/people/marc.carrio] created the discussion "How send mail to "starter" user" To view the discussion, visit: http://community.jboss.org/message/537462#537462 -------------------------------------------------------------- Hi !! I'm very new in jBPM and perhaps is trivial... :-/ I want send a mail to the creator of instance process with a notification that the process finished. I know how send mails, but i don't know how capture the name/user that init the process. I think that I can save this information in a variable in the starter form, but i don't know how can i do this. Any idea? or reference? Thank you in advance for your help!! ;) Mary. -> jBPM 4.3 with jbpm-console 1.3 (and testing jbpm-console 2.0) in tomcat and mysql -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/537462#537462] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

16 years

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Re: [jboss-user] [JBoss Messaging] - How to configure JBoss to use Tibco JMS over SSL

by Rama Krishna Sarraju

Rama Krishna Sarraju [http://community.jboss.org/people/sarraju] replied to the discussion "How to configure JBoss to use Tibco JMS over SSL" To view the discussion, visit: http://community.jboss.org/message/537458#537458 -------------------------------------------------------------- Agree. I was not able to find relavent Tibco document. Now i found it and I am trying it out. Posted in this forum just to get pointers like the following link which was extremely helpful : http://community.jboss.org/wiki/IntegrationWithTibcoEMS?decorator=print http://community.jboss.org/wiki/IntegrationWithTibcoEMS?decorator=print The above link has everything except SSL configuration. If some body can update it , that would be a great help for many people -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/537458#537458] Start a new discussion in JBoss Messaging at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

16 years

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Re: [jboss-user] [JBoss Microcontainer Development] - JBoss Reflect Performance Javassist vs Introspection

by Kabir Khan

Kabir Khan [http://community.jboss.org/people/kabir.khan%40jboss.com] replied to the discussion "JBoss Reflect Performance Javassist vs Introspection" To view the discussion, visit: http://community.jboss.org/message/537449#537449 -------------------------------------------------------------- I've tried starting AS with the two implementations, and the overhead of creating accessor classes means javassist is slower. Javassist: ~24.5s Introspection: ~21s I need to profile this, but think this is because when configuring beans, we normally only set properties once, so we get the overhead of creating the class, but not the benefit of invoking it lots of times. I will ask Chiba if there is anything that can be done to JavassistMembersFactory to make this faster. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/537449#537449] Start a new discussion in JBoss Microcontainer Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

16 years

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Re: [jboss-user] [JBoss Messaging] - java.lang.NullPointerException on JBoss 6 M2

by Clebert Suconic

Clebert Suconic [http://community.jboss.org/people/clebert.suconic%40jboss.com] replied to the discussion "java.lang.NullPointerException on JBoss 6 M2" To view the discussion, visit: http://community.jboss.org/message/537445#537445 -------------------------------------------------------------- This will be moot on M3. We have entirely replaced JBoss Messaging by HornetQ on JBossAS/trunk (what will become M3 in a few weeks). You will have hornetq already installed If you build JBoss/as from trunk. You can either build AS6 from svn and test if this issue is gone... or download it the latest successful nightly build: http://hudson.jboss.org/hudson/job/JBoss-AS-6.0.x/lastSuccessfulBuild/art... http://hudson.jboss.org/hudson/job/JBoss-AS-6.0.x/lastSuccessfulBuild/art... >From the POV of HornetQ / Messaging everthing is pretty much ready now on AS6. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/537445#537445] Start a new discussion in JBoss Messaging at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

16 years

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Re: [jboss-user] [JBoss Messaging] - How to configure JBoss to use Tibco JMS over SSL

by Clebert Suconic

Clebert Suconic [http://community.jboss.org/people/clebert.suconic%40jboss.com] replied to the discussion "How to configure JBoss to use Tibco JMS over SSL" To view the discussion, visit: http://community.jboss.org/message/537443#537443 -------------------------------------------------------------- That's probably more of a question to Tibco? This forum is about JBoss-Messaging. (A project which is a previous version of HornetQ). -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/537443#537443] Start a new discussion in JBoss Messaging at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

16 years

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Re: [jboss-user] [JBoss Portal] - Conversion to Portlet..Please help

by Piergiorgio Lucidi

Piergiorgio Lucidi [http://community.jboss.org/people/piergiorgiolucidi] replied to the discussion "Conversion to Portlet..Please help" To view the discussion, visit: http://community.jboss.org/message/537441#537441 -------------------------------------------------------------- You can create a page with 2 columns using the Administration Console. Then you can instance a CMSPortlet dedicated to the left menu and an instance of the IFramePortlet to render the content selected from the menu. Hope this helps. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/537441#537441] Start a new discussion in JBoss Portal at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

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jboss-user April 2010