3:57 a.m.
Hi,
i have a problem with oryx process-designer and drools guvnor. I have
created a process with process-designer and i saved it. Then i have opened
this file with eclipse and i uploaded this file in guvnor repository.
I have opened the process in drools guvnor and the following exception
occurred:
The server encountered an internal error () that prevented it from
fulfilling this request.</u></p><p>exception
<pre>javax.servlet.ServletException:
http://localhost:8080/designer/bpmn2_0deserialization
org.drools.guvnor.server.GuvnorAPIServlet.service(GuvnorAPIServlet.java:73)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.jboss.seam.web.ContextFilter$1.process(ContextFilter.java:42)
How can i fix this problem?
My jboss installation runs on port 8580 because 8080 is busy (oracleXE).
Thanks in advance
Alfredo.
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7:22 a.m.
I also get this error when creating a bpmn process in eclipse (galileo) and
trying to open/view it in guvnor, having it committed first.
I'm using jboss-5.1.0.GA and drools version 5.1 . The application server is
running on port 8080 (default configuration). I'm not using any rdbms only
what
comes bundled (h2 embedded db ) with drools. For oryx designer i'm using
designer.war Revision 35836: /labs/jbossrules/contrib/designer as downloaded
from url,
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/contrib/designer/
as specified in,
http://blog.athico.com/2010/09/bpmn2-authoring-in-drools-guvnor.html
The only way I have managed to view and edit a bpmn model inside guvnor by
using
the oryx designer and also being able to open for view and editing in
eclipse
with commits and updates back and forth with guvnor and everything to work
fine
is by,
1. creating a model from scratch in oryx designer (
http://localhost:8080/designer/editor ), preferably just a start and end
point and maybe also a single task between them (start and end only works
fine).
2. download the model from the option of oryx designer "Download BPMN 2.0 DI
XML"
3. import in eclipse from filesystem
4. add/change stuff and add to guvnor
Afterwards everything works fine whether edited and committed from guvnor
and
viewed in eclipse or edited and committed from eclipse and viewed in guvnor.
By comparing the bpmn xml files created from oryx and from eclipse there
seem to
be differences that actually cause this error, since they stop occurring if
using the same syntax.
I'm still trying to find which different part actually casuses this, when i
find
it i will post it.
Sorry for the long text, any help will be greatly appreciated!!
Thank you.
p.s. just to make things more annoying I would like to mention that when
adding from eclipse
to a bpmn model that "works" a Rule Task element and then close the bpmn
model tab
in eclipse and reopen it a strange error appears, which occurs because of a
strange prefix 'g' character inserted in the xml of the bpmn. If it is
removed from the xml
everything works fine.... I suppose everything has to do with the different
xml
schemas, namespaces and tags used in the xml bpmn.. . .
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10:15 a.m.
Hi,
It is possible there are still issues between Oryx and Drools Eclipse
plugin, as they are both using the same spec but not necessarily the
same version (or interpreting the spec differently). First of all, I
would recommend updating to the latest version of the Oryx designer
(unfortunately you'll have to use Chrome as browser in that case as it
doesn't load on FF, something small we still have to fix) which can be
found here:
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/contrib/designer/1.0....
The reason is that the first version of the designer (which you were
using) was still using the beta1 version of the BPMN2 spec. The eclipse
plugin is already using the beta2 version, and so is the latest version
of the designer. There is still limited support for the beta1 format,
that's why eclipse will be able to open and save a BPMN2 file created in
Oryx (it will use beta1 format in that case), but starting from Eclipse
won't work in Oryx (as the old version of Oryx won't understand the
beta2 format). You can see the difference by looking at the namespace
used for bpmn, which will be different for beta1 and beta2.
The other problem you mentioned, the "g" namespace not being added to
the BPMN2 file, is indeed a known issue that is already fixed on the
latest trunk. I suggest you download a latest version of the Eclipse
plugin here:
https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/t...
Kris
melc wrote:
I also get this error when creating a bpmn process in eclipse
(galileo) and
trying to open/view it in guvnor, having it committed first.
I'm using jboss-5.1.0.GA and drools version 5.1 . The application server is
running on port 8080 (default configuration). I'm not using any rdbms only
what
comes bundled (h2 embedded db ) with drools. For oryx designer i'm using
designer.war Revision 35836: /labs/jbossrules/contrib/designer as downloaded
from url,
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/contrib/designer/
as specified in,
http://blog.athico.com/2010/09/bpmn2-authoring-in-drools-guvnor.html
The only way I have managed to view and edit a bpmn model inside guvnor by
using
the oryx designer and also being able to open for view and editing in
eclipse
with commits and updates back and forth with guvnor and everything to work
fine
is by,
1. creating a model from scratch in oryx designer (
http://localhost:8080/designer/editor ), preferably just a start and end
point and maybe also a single task between them (start and end only works
fine).
2. download the model from the option of oryx designer "Download BPMN 2.0 DI
XML"
3. import in eclipse from filesystem
4. add/change stuff and add to guvnor
Afterwards everything works fine whether edited and committed from guvnor
and
viewed in eclipse or edited and committed from eclipse and viewed in guvnor.
By comparing the bpmn xml files created from oryx and from eclipse there
seem to
be differences that actually cause this error, since they stop occurring if
using the same syntax.
I'm still trying to find which different part actually casuses this, when i
find
it i will post it.
Sorry for the long text, any help will be greatly appreciated!!
Thank you.
p.s. just to make things more annoying I would like to mention that when
adding from eclipse
to a bpmn model that "works" a Rule Task element and then close the bpmn
model tab
in eclipse and reopen it a strange error appears, which occurs because of a
strange prefix 'g' character inserted in the xml of the bpmn. If it is
removed from the xml
everything works fine.... I suppose everything has to do with the different
xml
schemas, namespaces and tags used in the xml bpmn.. . .
1:22 p.m.
The Process Designer is being developed here:
http://github.com/intalio/process-designer<https://github.com/intalio/...
We fixed the loading issue and it should work on Firefox and Safari as well
as on Chrome, even the beta dev.
We are working on implementing Chrome Frame support for IE right now.
Feel free to take it for a spin.
Thanks,
Antoine
On Wed, Nov 3, 2010 at 08:15, Kris Verlaenen
<kris.verlaenen(a)cs.kuleuven.be>wrote:
Hi,
It is possible there are still issues between Oryx and Drools Eclipse
plugin, as they are both using the same spec but not necessarily the
same version (or interpreting the spec differently). First of all, I
would recommend updating to the latest version of the Oryx designer
(unfortunately you'll have to use Chrome as browser in that case as it
doesn't load on FF, something small we still have to fix) which can be
found here:
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/contrib/designer/1.0....
The reason is that the first version of the designer (which you were
using) was still using the beta1 version of the BPMN2 spec. The eclipse
plugin is already using the beta2 version, and so is the latest version
of the designer. There is still limited support for the beta1 format,
that's why eclipse will be able to open and save a BPMN2 file created in
Oryx (it will use beta1 format in that case), but starting from Eclipse
won't work in Oryx (as the old version of Oryx won't understand the
beta2 format). You can see the difference by looking at the namespace
used for bpmn, which will be different for beta1 and beta2.
The other problem you mentioned, the "g" namespace not being added to
the BPMN2 file, is indeed a known issue that is already fixed on the
latest trunk. I suggest you download a latest version of the Eclipse
plugin here:
https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/t...
Kris
melc wrote:
> I also get this error when creating a bpmn process in eclipse (galileo)
and
> trying to open/view it in guvnor, having it committed first.
>
> I'm using jboss-5.1.0.GA and drools version 5.1 . The application server
is
> running on port 8080 (default configuration). I'm not using any rdbms
only
> what
> comes bundled (h2 embedded db ) with drools. For oryx designer i'm using
> designer.war Revision 35836: /labs/jbossrules/contrib/designer as
downloaded
> from url,
> http://anonsvn.jboss.org/repos/labs/labs/jbossrules/contrib/designer/
> as specified in,
> http://blog.athico.com/2010/09/bpmn2-authoring-in-drools-guvnor.html
>
> The only way I have managed to view and edit a bpmn model inside guvnor
by
> using
> the oryx designer and also being able to open for view and editing in
> eclipse
> with commits and updates back and forth with guvnor and everything to
work
> fine
> is by,
> 1. creating a model from scratch in oryx designer (
> http://localhost:8080/designer/editor ), preferably just a start and end
> point and maybe also a single task between them (start and end only works
> fine).
> 2. download the model from the option of oryx designer "Download BPMN 2.0
DI
> XML"
> 3. import in eclipse from filesystem
> 4. add/change stuff and add to guvnor
>
> Afterwards everything works fine whether edited and committed from guvnor
> and
> viewed in eclipse or edited and committed from eclipse and viewed in
guvnor.
>
> By comparing the bpmn xml files created from oryx and from eclipse there
> seem to
> be differences that actually cause this error, since they stop occurring
if
> using the same syntax.
> I'm still trying to find which different part actually casuses this, when
i
> find
> it i will post it.
>
> Sorry for the long text, any help will be greatly appreciated!!
> Thank you.
>
> p.s. just to make things more annoying I would like to mention that when
> adding from eclipse
> to a bpmn model that "works" a Rule Task element and then close the bpmn
> model tab
> in eclipse and reopen it a strange error appears, which occurs because of
a
> strange prefix 'g' character inserted in the xml of the bpmn. If it is
> removed from the xml
> everything works fine.... I suppose everything has to do with the
different
> xml
> schemas, namespaces and tags used in the xml bpmn.. . .
>
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3:36 p.m.
Great work!
Thank you very much for your help guys!!
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10:24 a.m.
New subject: process-designer deserialization error (new ISSUE)
Kris, I have followed your instructions and downloaded all files related to,
https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/t...
which are snapshot 5.2.0 and also the designer from,
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/contrib/designer/1.0....
(when everything works fine i will also try the latest designer from
http://github.com/intalio/process-designer as mentioned by Antoine)
The aim is to simply upload the sample.bpmn as generated from eclipse to a
package on guvnor (i.e. defaultPackage) and compile the package in order to
view and run the process from gwt-console (since if it is not compiled no
process definitions are shown).
I think i have tried all possible combinations i.e. 5.1.1 and 5.2.0 files
(drools runtime, guvnor, gwt-console, gwt-console-server, eclipse plugin),
only eclipse 5.2.0 and the rest 5.1.1 (all in jboss-5.1.0.GA) as well as the
5.1.1 standalone guvnor (jboss-4.2.3.GA). All installations take place via
ant and the corresponding build.xml.
Whenever I try to compile an added package in guvnor (i.e. defaultPackage) i
get,
unable to parse xml : Exception class java.lang.NullPointerException : null
if i login to gwt-console and try to get process definitions ( I would
simply expect nothing....) I get,
[ERROR] <ul><li>URL:
'http://localhost:8080/gwt-console-server/rs/process/definitions'
<li>Action: 'org.jboss.bpm.console.client.process.UpdateDefinitionsAction'
<li>Exception: 'class java.io.IOException'</ul>
Request timeout
java.io.IOException:
Request timeout
at Unknown.MDb(Unknown source:0)
at Unknown.$uc(Unknown source:0)
at Unknown.Jw(Unknown source:0)
at Unknown.anonymous(Unknown source:0)
at Unknown.mz(Unknown source:0)
at Unknown.anonymous(Unknown source:0)
Finally if i try to open the bpmn with the 1.0.0.026-SNAPSHOT designer i
get,
HTTP Status 500 -
java.lang.NoClassDefFoundError: Could not initialize class
org.oryxeditor.server.EditorHandler
....
Okay, I'm full of problems , but the most important one is not being able
to compile a package in order to use the gwt-console for viewing and running
the processes.
Is anyone else facing the same "unable to parse xml : Exception class
java.lang.NullPointerException : null " problem??
I would greatly appreciate any help , thanks....
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10:42 a.m.
New subject: process-designer deserialization error (new ISSUE)
Process Designer went a long way since, I recommend you try this:
http://www.intalio.org/public/maven2/com/intalio/bpms/web/designer/1.0.0....
You will need to tweak the web.xml to support Tomcat I think.
Good luck!
Antoine
On Fri, Nov 5, 2010 at 08:24, melc <c_melas(a)yahoo.com> wrote:
Kris, I have followed your instructions and downloaded all files related
to,
https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/t...
which are snapshot 5.2.0 and also the designer from,
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/contrib/designer/1.0....
(when everything works fine i will also try the latest designer from
http://github.com/intalio/process-designer as mentioned by Antoine)
The aim is to simply upload the sample.bpmn as generated from eclipse to a
package on guvnor (i.e. defaultPackage) and compile the package in order to
view and run the process from gwt-console (since if it is not compiled no
process definitions are shown).
I think i have tried all possible combinations i.e. 5.1.1 and 5.2.0 files
(drools runtime, guvnor, gwt-console, gwt-console-server, eclipse plugin),
only eclipse 5.2.0 and the rest 5.1.1 (all in jboss-5.1.0.GA) as well as
the
5.1.1 standalone guvnor (jboss-4.2.3.GA). All installations take place via
ant and the corresponding build.xml.
Whenever I try to compile an added package in guvnor (i.e. defaultPackage)
i
get,
unable to parse xml : Exception class java.lang.NullPointerException : null
if i login to gwt-console and try to get process definitions ( I would
simply expect nothing....) I get,
[ERROR] <ul><li>URL:
'http://localhost:8080/gwt-console-server/rs/process/definitions'
<li>Action: 'org.jboss.bpm.console.client.process.UpdateDefinitionsAction'
<li>Exception: 'class java.io.IOException'</ul>
Request timeout
java.io.IOException:
Request timeout
at Unknown.MDb(Unknown source:0)
at Unknown.$uc(Unknown source:0)
at Unknown.Jw(Unknown source:0)
at Unknown.anonymous(Unknown source:0)
at Unknown.mz(Unknown source:0)
at Unknown.anonymous(Unknown source:0)
Finally if i try to open the bpmn with the 1.0.0.026-SNAPSHOT designer i
get,
HTTP Status 500 -
java.lang.NoClassDefFoundError: Could not initialize class
org.oryxeditor.server.EditorHandler
....
Okay, I'm full of problems , but the most important one is not being able
to compile a package in order to use the gwt-console for viewing and
running
the processes.
Is anyone else facing the same "unable to parse xml : Exception class
java.lang.NullPointerException : null " problem??
I would greatly appreciate any help , thanks....
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11:03 a.m.
New subject: process-designer deserialization error (new ISSUE)
Antoine thank you very much for the link, I"ll use it.... hopefully to get
rid of the editing problem :-) i'm currently facing.
I'm actually using jboss so I should probably have no problems using it
directly.
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5:54 p.m.
Tried to install everything from scratch on another environment (java is 1.6
specifically this one is 1.6.0_11, the other I think was 1.6.0_21, both
windows unfortunately), again this time following carefully the installation
procedure based on the Drools Installer. Everything went smoothly and this
time the application server used was jboss-4.2.3.GA as specified in the
build.xml . I did install latest drools eclipse plugin and created the
sample process/flow files in drools project. But after adding to guvnor at
the defaultPackage, i got the same annoying error when trying to compile the
package,
unable to parse xml : Exception class java.lang.NullPointerException : null
as a result nothing appears in gwt-console etc
Can someone please help me out?? I also provide, at the end of this post,
the log from server.log after logging in and compiling the package in
guvnor. Tomorrow, i'll try to debug the source to find out why i get this
NullPointerException. I'll post as soon as i find out something. Thank you
for your time.
----
2010-11-07 00:39:58,878 INFO [STDOUT] INFO 07-11 00:39:58,877
(SecurityServiceImpl.java:login:75) Logging in user [admin]
2010-11-07 00:39:58,886 INFO [STDOUT] INFO 07-11 00:39:58,885
(DefaultAuthenticator.java:authenticate:55) User logged in via default
authentication module (no security check).
2010-11-07 00:40:07,148 INFO [STDOUT] DEBUG 07-11 00:40:07,147
(SelectorManager.java:<init>:45) Loading selectors
2010-11-07 00:40:13,245 INFO [STDOUT] DEBUG 07-11 00:40:13,244
(ContentManager.java:<init>:62) Loading content properties
2010-11-07 00:40:13,779 ERROR [STDERR] java.lang.NullPointerException
2010-11-07 00:40:13,780 ERROR [STDERR] at
org.drools.compiler.ProcessBuilder.buildProcess(ProcessBuilder.java:121)
2010-11-07 00:40:13,780 ERROR [STDERR] at
org.drools.compiler.ProcessBuilder.addProcessFromFile(ProcessBuilder.java:225)
2010-11-07 00:40:13,780 ERROR [STDERR] at
org.drools.compiler.PackageBuilder.addProcessFromXml(PackageBuilder.java:437)
2010-11-07 00:40:13,780 ERROR [STDERR] at
org.drools.guvnor.server.contenthandler.BPMN2ProcessHandler.compile(BPMN2ProcessHandler.java:227)
2010-11-07 00:40:13,811 ERROR [STDERR] at
org.drools.guvnor.server.builder.ContentPackageAssembler.buildAsset(ContentPackageAssembler.java:240)
2010-11-07 00:40:13,811 ERROR [STDERR] at
org.drools.guvnor.server.builder.ContentPackageAssembler.buildPackage(ContentPackageAssembler.java:225)
2010-11-07 00:40:13,811 ERROR [STDERR] at
org.drools.guvnor.server.builder.ContentPackageAssembler.<init>(ContentPackageAssembler.java:140)
2010-11-07 00:40:13,811 ERROR [STDERR] at
org.drools.guvnor.server.ServiceImplementation.buildPackage(ServiceImplementation.java:1676)
2010-11-07 00:40:13,811 ERROR [STDERR] at
org.drools.guvnor.server.ServiceImplementation.buildPackage(ServiceImplementation.java:1623)
2010-11-07 00:40:13,811 ERROR [STDERR] at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
2010-11-07 00:40:13,811 ERROR [STDERR] at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
2010-11-07 00:40:13,811 ERROR [STDERR] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
2010-11-07 00:40:13,911 ERROR [STDERR] at
java.lang.reflect.Method.invoke(Method.java:597)
2010-11-07 00:40:13,911 ERROR [STDERR] at
org.jboss.seam.util.Reflections.invoke(Reflections.java:22)
2010-11-07 00:40:13,911 ERROR [STDERR] at
org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)
2010-11-07 00:40:13,911 ERROR [STDERR] at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
2010-11-07 00:40:13,911 ERROR [STDERR] at
org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:28)
2010-11-07 00:40:14,011 ERROR [STDERR] at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
2010-11-07 00:40:14,011 ERROR [STDERR] at
org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:77)
2010-11-07 00:40:14,011 ERROR [STDERR] at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
2010-11-07 00:40:14,011 ERROR [STDERR] at
org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44)
2010-11-07 00:40:14,011 ERROR [STDERR] at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
2010-11-07 00:40:14,011 ERROR [STDERR] at
org.jboss.seam.security.SecurityInterceptor.aroundInvoke(SecurityInterceptor.java:157)
2010-11-07 00:40:14,111 ERROR [STDERR] at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
2010-11-07 00:40:14,112 ERROR [STDERR] at
org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107)
2010-11-07 00:40:14,112 ERROR [STDERR] at
org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:166)
2010-11-07 00:40:14,112 ERROR [STDERR] at
org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:102)
2010-11-07 00:40:14,112 ERROR [STDERR] at
org.drools.guvnor.server.ServiceImplementation_$$_javassist_3.buildPackage(ServiceImplementation_$$_javassist_3.java)
2010-11-07 00:40:14,112 ERROR [STDERR] at
org.drools.guvnor.server.RepositoryServiceServlet.buildPackage(RepositoryServiceServlet.java:239)
2010-11-07 00:40:14,112 ERROR [STDERR] at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
2010-11-07 00:40:14,112 ERROR [STDERR] at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
2010-11-07 00:40:14,112 ERROR [STDERR] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
2010-11-07 00:40:14,212 ERROR [STDERR] at
java.lang.reflect.Method.invoke(Method.java:597)
2010-11-07 00:40:14,212 ERROR [STDERR] at
com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:562)
2010-11-07 00:40:14,212 ERROR [STDERR] at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:188)
2010-11-07 00:40:14,212 ERROR [STDERR] at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:224)
2010-11-07 00:40:14,212 ERROR [STDERR] at
com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
2010-11-07 00:40:14,312 ERROR [STDERR] at
javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
2010-11-07 00:40:14,312 ERROR [STDERR] at
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
2010-11-07 00:40:14,312 ERROR [STDERR] at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
2010-11-07 00:40:14,312 ERROR [STDERR] at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
2010-11-07 00:40:14,312 ERROR [STDERR] at
org.jboss.seam.web.ContextFilter$1.process(ContextFilter.java:42)
2010-11-07 00:40:14,412 ERROR [STDERR] at
org.jboss.seam.servlet.ContextualHttpServletRequest.run(ContextualHttpServletRequest.java:53)
2010-11-07 00:40:14,412 ERROR [STDERR] at
org.jboss.seam.web.ContextFilter.doFilter(ContextFilter.java:37)
2010-11-07 00:40:14,412 ERROR [STDERR] at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
2010-11-07 00:40:14,412 ERROR [STDERR] at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
2010-11-07 00:40:14,412 ERROR [STDERR] at
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
2010-11-07 00:40:14,512 ERROR [STDERR] at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
2010-11-07 00:40:14,512 ERROR [STDERR] at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
2010-11-07 00:40:14,512 ERROR [STDERR] at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
2010-11-07 00:40:14,512 ERROR [STDERR] at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
2010-11-07 00:40:14,512 ERROR [STDERR] at
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
2010-11-07 00:40:14,612 ERROR [STDERR] at
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
2010-11-07 00:40:14,612 ERROR [STDERR] at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
2010-11-07 00:40:14,612 ERROR [STDERR] at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
2010-11-07 00:40:14,612 ERROR [STDERR] at
org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
2010-11-07 00:40:14,612 ERROR [STDERR] at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
2010-11-07 00:40:14,712 ERROR [STDERR] at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
2010-11-07 00:40:14,712 ERROR [STDERR] at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
2010-11-07 00:40:14,712 ERROR [STDERR] at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
2010-11-07 00:40:14,712 ERROR [STDERR] at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
2010-11-07 00:40:14,712 ERROR [STDERR] at
java.lang.Thread.run(Thread.java:619)
2010-11-07 00:40:14,819 INFO [STDOUT] INFO 07-11 00:40:14,818
(LoggingHelper.java:info:51) Following assets have been included in
package build: drools, sample,
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5:35 a.m.
Finally I think I've got something after debugging the source. Well at least
the compilation issues as well as viewing and running the process from
gwt-console have been resolved for now.
I'm not sure if it is something that needs to be corrected or whether i've
missed it somewhere. But the story is that the NullPointerException occuring
at org.drools.compiler.ProcessBuilder.buildProcess(ProcessBuilder.java:121)
and giving in guvnor the following error,
unable to parse xml : Exception class java.lang.NullPointerException : null
was because the Process object that was built by the
org.drools.bpmn2.xml.ProcessHandler had a packageName equal to
"org.drools.bpmn2", which is the default value given to the packageName
attribute if it is null (i.e. not found in the xml bpmn process definition)
.
However, if the added process is opened in guvnor the information on the
right says that the packageName is equal to defaultPackage (i.e. if it has
been added to defaultPackage) as someone would expect, but this is not
actually the case on compile time....if the xml has not been edited
appropriately.
So the resolution to this is to add an attribute packageName to the process
tag within the bpmn xml file, before adding it to guvnor. Actually, the
exact attribute name has to be tns:packageName="the name of the guvnor
package that this bpmn will be added to".
The question is whether this is actually true.... or whether i'm missing
something and don't really need to edit the xml of each process created in
eclipse before adding it in guvnor.
I appreciate any help, thank you for your time.
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6:01 p.m.
Hi,
Yes, the NPE you are getting is because the package as defined in the
process is not the same as the package in Guvnor. You can set the
package of your process either by changing the XML file as you
described, but there is also a package name property on the process
(just click the background of your process and check the properties
view). You should be able to build your process on Guvnor if package
names match.
Kris
melc wrote:
Finally I think I've got something after debugging the source.
Well at least
the compilation issues as well as viewing and running the process from
gwt-console have been resolved for now.
I'm not sure if it is something that needs to be corrected or whether i've
missed it somewhere. But the story is that the NullPointerException occuring
at org.drools.compiler.ProcessBuilder.buildProcess(ProcessBuilder.java:121)
and giving in guvnor the following error,
unable to parse xml : Exception class java.lang.NullPointerException : null
was because the Process object that was built by the
org.drools.bpmn2.xml.ProcessHandler had a packageName equal to
"org.drools.bpmn2", which is the default value given to the packageName
attribute if it is null (i.e. not found in the xml bpmn process definition)
.
However, if the added process is opened in guvnor the information on the
right says that the packageName is equal to defaultPackage (i.e. if it has
been added to defaultPackage) as someone would expect, but this is not
actually the case on compile time....if the xml has not been edited
appropriately.
So the resolution to this is to add an attribute packageName to the process
tag within the bpmn xml file, before adding it to guvnor. Actually, the
exact attribute name has to be tns:packageName="the name of the guvnor
package that this bpmn will be added to".
The question is whether this is actually true.... or whether i'm missing
something and don't really need to edit the xml of each process created in
eclipse before adding it in guvnor.
I appreciate any help, thank you for your time.
9:56 a.m.
Alfredo,
Yes, the GuvnorAPIServlet seems to be connecting hardcoded to
"http://localhost:8080/designer/bpmn2_0deserialization". I'll see if I
can update this to something better or at least configurable.
Kris
AlfredoLatini wrote:
Hi,
i have a problem with oryx process-designer and drools guvnor. I have
created a process with process-designer and i saved it. Then i have opened
this file with eclipse and i uploaded this file in guvnor repository.
I have opened the process in drools guvnor and the following exception
occurred:
The server encountered an internal error () that prevented it from
fulfilling this request.</u></p><p>exception
<pre>javax.servlet.ServletException:
http://localhost:8080/designer/bpmn2_0deserialization
org.drools.guvnor.server.GuvnorAPIServlet.service(GuvnorAPIServlet.java:73)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.jboss.seam.web.ContextFilter$1.process(ContextFilter.java:42)
How can i fix this problem?
My jboss installation runs on port 8580 because 8080 is busy (oracleXE).
Thanks in advance
Alfredo.
6:55 a.m.
Hello Kris,
I was wondering if there's already a Guvnor version with the connection to
the designer being configurable?
Greetings, Audrey
Kris Verlaenen wrote:
Yes, the GuvnorAPIServlet seems to be connecting hardcoded to
"http://localhost:8080/designer/bpmn2_0deserialization". I'll see if I
can update this to something better or at least configurable.
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10:15 a.m.
New subject: Building a rule base from the content of a directory
Hello,
I plan to use the Drools Eclipse plugin in order to create rules with
both the "Guided rule" editor and the "Rule resource" editor, and I
would like to write a rather "generic" piece of code (using a
KnowledgeBuilder) in order to setup a KnowledgeBase from the rule files
contained in a directory.
Would you say that am I completly re-inventing something that already
exists? If not, is there is a convention related to building a rule base
from a directory containing a mix of Drools files (drools.package, BRL,
DRL...) created with the Drools Eclipse plugin?
My first experiments showed that, in a directory containing only a BRL
file and its associated "drools.package" file:
* If I add both the "drools.package" file (as a DRL resource), then
the BRL file (as a BRL resource) into the KnowledgeBuilder, I get
a compilation error telling "Unable to resolve ObjectType
'Document'"
* If I concatenate the content of the "drools.package" file and the
result of the "BRL 2 DRL" conversion into a single DRL file, then
add that unique DRL file (as a DRL resource) into the
KnowledgeBuilder, everything is fine.
Does any of you have an idea where I am mistaken?
Many thanks in advance,
Best regards,
Bruno.
5067
days inactive
5137
days old
13 comments
6 participants
participants (6)
-
AlfredoLatini -
alim -
Antoine Toulme -
Bruno Freudensprung -
Kris Verlaenen -
melc