[JBoss-user] [Javassist user questions] - Re: unable to locate the proper class - and some newbie ques
Hi again, I donno whether weblogic has such thing, but I will try to find out. Another question, hehe, hope I am not causing you too much troubles with so many questions. How do I accommodate for data types like char[] or byte[] :D Thanks again in advance View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3853713#3853713 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3853713 --- This SF.Net email is sponsored by: Sybase ASE Linux Express Edition - download now for FREE LinuxWorld Reader's Choice Award Winner for best database on Linux. http://ads.osdn.com/?ad_id=5588alloc_id=12065op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Javassist user questions] - Re: unable to locate the proper class - and some newbie ques
ClassPool#get(char[]) ? View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3853734#3853734 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3853734 --- This SF.Net email is sponsored by: Sybase ASE Linux Express Edition - download now for FREE LinuxWorld Reader's Choice Award Winner for best database on Linux. http://ads.osdn.com/?ad_id=5588alloc_id=12065op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Javassist user questions] - Re: unable to locate the proper class - and some newbie ques
Hi Chiba, Thanks for your reply. Currently we're using weblogic server to deploy our EJB. If we are to do the 2nd approach, means we're to modify the class loader of the EJB inside weblogic or maybe somehow create a new one to replace it (which I have no idea how to). Anyway, I guess I don't have any option since time is limited but I would really like to know how can I do the 2nd approach. ;) Thanks a lot Mr Chiba. You really helped me out a lot. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3853585#3853585 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3853585 --- This SF.Net email is sponsored by: Sybase ASE Linux Express Edition - download now for FREE LinuxWorld Reader's Choice Award Winner for best database on Linux. http://ads.osdn.com/?ad_id=5588alloc_id=12065op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Javassist user questions] - Re: unable to locate the proper class - and some newbie ques
I think JBoss has API to substitute a user-defined class loader for the original one. WebLogic should have such a API... :-p Chiba View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3853625#3853625 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3853625 --- This SF.Net email is sponsored by: Sybase ASE Linux Express Edition - download now for FREE LinuxWorld Reader's Choice Award Winner for best database on Linux. http://ads.osdn.com/?ad_id=5588alloc_id=12065op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Javassist user questions] - Re: unable to locate the proper class - and some newbie ques
Generating physical class files in advance is the simplest way. Otherwise, you might be able to modify a class loader that loads your EJB so that the class loader also can find virtual class files generated on the fly. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3853561#3853561 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3853561 --- This SF.Net email is sponsored by: Sybase ASE Linux Express Edition - download now for FREE LinuxWorld Reader's Choice Award Winner for best database on Linux. http://ads.osdn.com/?ad_id=5588alloc_id=12065op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Javassist user questions] - Re: unable to locate the proper class - and some newbie ques
Hi again, I donno whether the problem is with the way I deploy my project. My entire project is an EJB (web application). Thus, when I run my project, it is in EJB. THus when I JAR my project into an EJB, the compiler can only JAR whatever classes I have and not those that have not been generated. If I am to use on-the-fly byte code generation, it will cause error since there is no physical class reference to be JAR-ed inside the EJB. I somehow changed it to pregenerated classes, so that when i deploy the EJB, those classes have already been generated physically and are deployed together with the rest of the classes. Then it's running fine, no error. :T haha, is there any other better way of doing this? Thanks again and sorry for taking too much of ur time here. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3853556#3853556 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3853556 --- This SF.Net email is sponsored by: Sybase ASE Linux Express Edition - download now for FREE LinuxWorld Reader's Choice Award Winner for best database on Linux. http://ads.osdn.com/?ad_id=5588alloc_id=12065op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Javassist user questions] - Re: unable to locate the proper class - and some newbie ques
I don't have any idea. Have you considered this? anonymous wrote : java.lang.ClassNotFoundException: com.temp.EmployeeVO: This error could indicate that a component was deployed on a cluster member but not other members of that cluster. Make sure that any component deployed on a server that is part of a cluster is also deployed on all other members of that cluster View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3853443#3853443 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3853443 --- This SF.Net email is sponsored by: Sybase ASE Linux Express Edition - download now for FREE LinuxWorld Reader's Choice Award Winner for best database on Linux. http://ads.osdn.com/?ad_id=5588alloc_id=12065op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Javassist user questions] - Re: unable to locate the proper class - and some newbie ques
Hi again, I have another problem (again...never ending problems). This time, I really really have no idea what is happening. As I've said earlier, I tried to use javassist to generate run-time Value Object (there's no physical file). Then after that, I will pass the instance of the newly generate VO through EAI (then to DB). Some weird errors occurred. Even if I somehow provide the physical class.the error is the same. -- java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: java.lang.ClassNotFoundException: com.temp.EmployeeVO: This error could indicate that a component was deployed on a cluster member but not other members of that cluster. Make sure that any component deployed on a server that is part of a cluster is also deployed on all other members of that cluster at weblogic.rjvm.BasicOutboundRequest.sendReceive(BasicOutboundRequest.java:108) at weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java:284) at weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java:244) at com.ejb.CommonGenericEJB_e1n9qi_EOImpl_813_WLStub.callEAIManager(Unknown Source) at com.ORBSPerformanceTest.testManualInsert(ORBSPerformanceTest.java:119) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at junit.framework.TestCase.runTest(TestCase.java:154) at junit.framework.TestCase.runBare(TestCase.java:127) at junit.framework.TestResult$1.protect(TestResult.java:106) at junit.framework.TestResult.runProtected(TestResult.java:124) at junit.framework.TestResult.run(TestResult.java:109) at junit.framework.TestCase.run(TestCase.java:118) at junit.framework.TestSuite.runTest(TestSuite.java:208) at junit.framework.TestSuite.run(TestSuite.java:203) at junit.textui.TestRunner.doRun(TestRunner.java:116) at com.intellij.rt.execution.junit2.IdeaJUnitAgent.doRun(Unknown Source) at junit.textui.TestRunner.start(TestRunner.java:172) at com.intellij.rt.execution.junit.TextTestRunner2.startRunnerWithArgs(Unknown Source) at com.intellij.rt.execution.junit2.JUnitStarter.prepareStreamsAndStart(Unknown Source) at com.intellij.rt.execution.junit2.JUnitStarter.main(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at com.intellij.rt.execution.application.AppMain.main(Unknown Source) -- I really ran out of ideas trying to solve this thing. Please help, i need them desperately. Thanks. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3852893#3852893 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3852893 --- This SF.Net email is sponsored by: Sybase ASE Linux Express Edition - download now for FREE LinuxWorld Reader's Choice Award Winner for best database on Linux. http://ads.osdn.com/?ad_id=5588alloc_id=12065op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Javassist user questions] - Re: unable to locate the proper class - and some newbie ques
I have another question here. Let say we have a modified class in JVM A, so if we are to pass the modified class to JVM B through RMI, will it cause any problem? Or maybe you have any better suggestion to do this? Thanks in advance View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3852865#3852865 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3852865 --- This SF.Net email is sponsored by: Sybase ASE Linux Express Edition - download now for FREE LinuxWorld Reader's Choice Award Winner for best database on Linux. http://ads.osdn.com/?ad_id=5588alloc_id=12065op=click ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Javassist user questions] - Re: unable to locate the proper class - and some newbie ques
Hi Mr. Chiba, Thanks for your reply. I think I get what you mean. I somehow modified my VO generator so that it only loads the object once and store in somewhere (not efficient, but that's the only way I can think of to bypass the class loading stuff). Really thanks a lot. I'll post more questions here if I don't understand something. Thanks alot. Cheers, Alvin Lim View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3852503#3852503 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3852503 --- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Javassist user questions] - Re: unable to locate the proper class - and some newbie ques
Hi, Thanks a lot for the reply Mr.Chiba. Really appreciate it. Anyway, perhaps i'm a problematic person, coz i have more questions for u. *lol* Ok, I have actually solved the previous questionsand here it is, some new problems. My current program works like this (value obj generation) : 1. Input value is the name of the Vo to generate. 2. Check whether it is inside a map. 3. If yes, get the CtClass from the map, use clas = ctClass.toClass(); return (ValueObject) clas.newInstance(); 4. If no, then generate the class by adding fields, methods, etc. Then return the class by doing the same thing as in (3). 5. I tested to first, call the VO, and since it doesnt exist, it is generated, then i again, call the VO, and it found that it is already in the map, so it load from the map then the problem occurs. Below is the msg: javassist.CannotCompileException: by java.lang.LinkageError: duplicate class definition: com/PersonVO at javassist.CtClass.toClass(CtClass.java:950) at javassist.CtClass.toClass(CtClass.java:910) at com.generateProxy(ValueObjectTransformer.java:58) at com.main(VOGeneratorTest.java:43) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at com.intellij.rt.execution.application.AppMain.main(Unknown Source) Sorry if the msg is a bit messy. Also, when i tried to use -- Loader c1 = new Loader(pool); Class abc = c1.loadClass(some class path n name); return (ValueObject) abc.newInstance(); It throws ClassCastException Sorry for asking too much :D Thx in advance! Cheers, ALvin Lim View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3852293#3852293 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3852293 --- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Javassist user questions] - Re: unable to locate the proper class - and some newbie ques
anonymous wrote : javassist.CannotCompileException: by java.lang.LinkageError: duplicate class definition: com/PersonVO This means the class loader has been already loaded PersonVO and thus it cannot load your modified version of PersonVO. I guess your code includes PersonVO as a type name. anonymous wrote : Loader c1 = new Loader(pool); | | Class abc = c1.loadClass(some class path n name); | | return (ValueObject) abc.newInstance(); | | It throws ClassCastException This is a problem called version barrier. You cannot cast a class type into another one loaded by another class loader. For more details, please read section 3.2 of the Javassist tutorial. Chiba View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3852330#3852330 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3852330 --- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Javassist user questions] - Re: unable to locate the proper class - and some newbie ques
hi again, seems like no1 answer my questions :( maybe its too simple. anyway, i have another doubt over here. my current situation is to generate value object in runtime from a set of configuration files. I tried to add a new field insidebut I found out that there's no CtClass.stringType or any String relevant type inside. So what if I wanted to add something like private String name inside the newly generated VO? and how bout the modifier. How can I set the modified of the field? Hope someone can help me. Thanks in advance. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3852187#3852187 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3852187 --- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Javassist user questions] - Re: unable to locate the proper class - and some newbie ques
Wow, many questions! :) anonymous wrote : | 1- The ClassPool failed to locate the proper class file unless I specify the full path of the class location, eg - ./build/classes/com/org/solution/ | Javassist uses CLASS_PATH. The real problem in your code is not the class path. CtClass clas = pool.get(StringBuilder); This is unfortunately wrong. All the class names must be fully qualified. So you had needed to say com.org.solution/javaAssist/test/StringBuilder. (I have a plan to introduce a mechanism similar to import, though.) anonymous wrote : | is there any other way besides explicitly put the destination where I want to put the newly modified file by calling writeFile(java.lang.String directoryName). | ... Do you really need a way to change the default root directory? I appreciate if you are satisfied with writeFile(String)... :) anonymous wrote : | 3- Pruning and Frozen. What does these 2 mean? I know frozen means you can no longer modify the class whereas pruning is you can no longer read or load it. Is my assumption correct? | yes, frozen means you cannot modify the class. Pruning means method bodies in CtClass has been deleted to save memory space. This is becaues some users said they processed a large number of class files and thus caused memory shortage. You can still read member signatures of pruned CtClass. However, people including Bill Burke do not seem to like pruning. This memory space optimization might be turned off in the next release. : (pruning is off in the current HEAD in CVS.) Chiba View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3852217#3852217 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3852217 --- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Javassist user questions] - Re: unable to locate the proper class - and some newbie ques
Oops, another two questions. anonymous wrote : | but I found out that there's no CtClass.stringType or any String relevant type inside. So what if I wanted to add something like private String name inside the newly generated VO? | Use ClassPool#get. | ClassPool pool = ... ; | CtClass stringType = pool.get(java.lang.String); | Or use CtField#make. | CtClass cc = ... ; | CtField f = CtField.make(private java.lang.String name;, cc); | cc.addField(f); | Chiba View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3852221#3852221 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3852221 --- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
