Bug 724160 (BRMS-103)

Summary: RSS feeds on BRMS elements (e.g, packages) not working
Product: [JBoss] JBoss Enterprise BRMS Platform 5 Reporter: Len DiMaggio <ldimaggi>
Component: User InterfaceAssignee: Jervis Liu <jliu>
Status: CLOSED NEXTRELEASE QA Contact:
Severity: unspecified Docs Contact:
Priority: high    
Version: 5.0.0 CR1CC: mproctor
Target Milestone: ---   
Target Release: 5.0.1, 5.0.1 CR2   
Hardware: Unspecified   
OS: Unspecified   
URL: http://jira.jboss.org/jira/browse/BRMS-103
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
April 17 CR1 build
Last Closed: 2009-09-17 14:38:21 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Attachments:
Description Flags
bug.html
none
bug.swf
none
server.log
none
BRMS-103.jpg none

Description Len DiMaggio 2009-05-01 14:50:16 UTC 
Date of First Response: 2009-10-02 01:55:17
securitylevel_name: Public

BRMS product issue for GUVNOR project JIRA: GUVNOR-285
Comment 1 Len DiMaggio 2009-05-01 14:52:04 UTC 
Link: Added: This issue depends GUVNOR-285
Comment 2 Len DiMaggio 2009-08-28 23:51:30 UTC 
Still an issue for 5.0.1 CR1 (5.0.1.BRMS 28909:28910M)

2009-08-28 17:37:31,644 INFO  [STDOUT] ERROR 28-08 17:37:31,633 (RulesRepository.java:loadPackage:369)   Unable to load a rule package. 
javax.jcr.RepositoryException: failed to resolve path null relative to /drools:repository/drools:package_area: empty path: empty path
        at org.apache.jackrabbit.core.NodeImpl.resolveRelativeNodePath(NodeImpl.java:237)
        at org.apache.jackrabbit.core.NodeImpl.getNode(NodeImpl.java:2468)
        at org.drools.repository.RulesRepository.loadPackage(RulesRepository.java:364)
        at org.drools.guvnor.server.files.FeedServlet.doPackageFeed(FeedServlet.java:80)
        at org.drools.guvnor.server.files.FeedServlet.access$000(FeedServlet.java:26)
        at org.drools.guvnor.server.files.FeedServlet$1.a(FeedServlet.java:37)
        at org.drools.guvnor.server.files.RepositoryServlet.doAuthorizedAction(RepositoryServlet.java:93)
        at org.drools.guvnor.server.files.FeedServlet.doGet(FeedServlet.java:35)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.jboss.seam.web.ContextFilter$1.process(ContextFilter.java:42)
        at org.jboss.seam.servlet.ContextualHttpServletRequest.run(ContextualHttpServletRequest.java:53)
        at org.jboss.seam.web.ContextFilter.doFilter(ContextFilter.java:37)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:173)
        at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
        at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
        at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
        at java.lang.Thread.run(Thread.java:619)
Caused by: org.apache.jackrabbit.spi.commons.conversion.MalformedPathException: empty path
        at org.apache.jackrabbit.spi.commons.conversion.PathParser.parse(PathParser.java:90)
        at org.apache.jackrabbit.spi.commons.conversion.PathParser.parse(PathParser.java:57)
        at org.apache.jackrabbit.spi.commons.conversion.ParsingPathResolver.getQPath(ParsingPathResolver.java:60)
        at org.apache.jackrabbit.spi.commons.conversion.CachingPathResolver.getQPath(CachingPathResolver.java:77)
        at org.apache.jackrabbit.spi.commons.conversion.DefaultNamePathResolver.getQPath(DefaultNamePathResolver.java:69)
        at org.apache.jackrabbit.core.SessionImpl.getQPath(SessionImpl.java:649)
        at org.apache.jackrabbit.core.NodeImpl.resolveRelativeNodePath(NodeImpl.java:209)
        ... 32 more
org.apache.jackrabbit.spi.commons.conversion.MalformedPathException: empty path
        at org.apache.jackrabbit.spi.commons.conversion.PathParser.parse(PathParser.java:90)
        at org.apache.jackrabbit.spi.commons.conversion.PathParser.parse(PathParser.java:57)
        at org.apache.jackrabbit.spi.commons.conversion.ParsingPathResolver.getQPath(ParsingPathResolver.java:60)
        at org.apache.jackrabbit.spi.commons.conversion.CachingPathResolver.getQPath(CachingPathResolver.java:77)
        at org.apache.jackrabbit.spi.commons.conversion.DefaultNamePathResolver.getQPath(DefaultNamePathResolver.java:69)
        at org.apache.jackrabbit.core.SessionImpl.getQPath(SessionImpl.java:649)
        at org.apache.jackrabbit.core.NodeImpl.resolveRelativeNodePath(NodeImpl.java:209)
        at org.apache.jackrabbit.core.NodeImpl.getNode(NodeImpl.java:2468)
        at org.drools.repository.RulesRepository.loadPackage(RulesRepository.java:364)
        at org.drools.guvnor.server.files.FeedServlet.doPackageFeed(FeedServlet.java:80)
        at org.drools.guvnor.server.files.FeedServlet.access$000(FeedServlet.java:26)
        at org.drools.guvnor.server.files.FeedServlet$1.a(FeedServlet.java:37)
        at org.drools.guvnor.server.files.RepositoryServlet.doAuthorizedAction(RepositoryServlet.java:93)
        at org.drools.guvnor.server.files.FeedServlet.doGet(FeedServlet.java:35)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.jboss.seam.web.ContextFilter$1.process(ContextFilter.java:42)
        at org.jboss.seam.servlet.ContextualHttpServletRequest.run(ContextualHttpServletRequest.java:53)
        at org.jboss.seam.web.ContextFilter.doFilter(ContextFilter.java:37)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:173)
        at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
        at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
        at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
        at java.lang.Thread.run(Thread.java:619)
2009-08-28 17:37:31,646 INFO  [STDOUT] ERROR 28-08 17:37:31,645 (RepositoryServlet.java:doAuthorizedAction:95)   org.drools.repository.RulesRepositoryException: Unable to load a rule package. 
2009-08-28 17:37:31,681 ERROR [org.apache.catalina.core.ContainerBase] Servlet.service() for servlet FeedServlet threw exception
org.apache.jackrabbit.spi.commons.conversion.MalformedPathException: empty path
        at org.apache.jackrabbit.spi.commons.conversion.PathParser.parse(PathParser.java:90)
        at org.apache.jackrabbit.spi.commons.conversion.PathParser.parse(PathParser.java:57)
        at org.apache.jackrabbit.spi.commons.conversion.ParsingPathResolver.getQPath(ParsingPathResolver.java:60)
        at org.apache.jackrabbit.spi.commons.conversion.CachingPathResolver.getQPath(CachingPathResolver.java:77)
        at org.apache.jackrabbit.spi.commons.conversion.DefaultNamePathResolver.getQPath(DefaultNamePathResolver.java:69)
        at org.apache.jackrabbit.core.SessionImpl.getQPath(SessionImpl.java:649)
        at org.apache.jackrabbit.core.NodeImpl.resolveRelativeNodePath(NodeImpl.java:209)
        at org.apache.jackrabbit.core.NodeImpl.getNode(NodeImpl.java:2468)
        at org.drools.repository.RulesRepository.loadPackage(RulesRepository.java:364)
        at org.drools.guvnor.server.files.FeedServlet.doPackageFeed(FeedServlet.java:80)
        at org.drools.guvnor.server.files.FeedServlet.access$000(FeedServlet.java:26)
        at org.drools.guvnor.server.files.FeedServlet$1.a(FeedServlet.java:37)
        at org.drools.guvnor.server.files.RepositoryServlet.doAuthorizedAction(RepositoryServlet.java:93)
        at org.drools.guvnor.server.files.FeedServlet.doGet(FeedServlet.java:35)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.jboss.seam.web.ContextFilter$1.process(ContextFilter.java:42)
        at org.jboss.seam.servlet.ContextualHttpServletRequest.run(ContextualHttpServletRequest.java:53)
        at org.jboss.seam.web.ContextFilter.doFilter(ContextFilter.java:37)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:173)
        at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
        at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
        at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
        at java.lang.Thread.run(Thread.java:619)


======================


HTTP Status 500 -

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: org.drools.repository.RulesRepositoryException: Unable to load a rule package. 
	org.jboss.seam.servlet.ContextualHttpServletRequest.run(ContextualHttpServletRequest.java:74)
	org.jboss.seam.web.ContextFilter.doFilter(ContextFilter.java:37)
	org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

root cause

org.drools.repository.RulesRepositoryException: Unable to load a rule package. 
	org.drools.repository.RulesRepository.loadPackage(RulesRepository.java:372)
	org.drools.guvnor.server.files.FeedServlet.doPackageFeed(FeedServlet.java:80)
	org.drools.guvnor.server.files.FeedServlet.access$000(FeedServlet.java:26)
	org.drools.guvnor.server.files.FeedServlet$1.a(FeedServlet.java:37)
	org.drools.guvnor.server.files.RepositoryServlet.doAuthorizedAction(RepositoryServlet.java:93)
	org.drools.guvnor.server.files.FeedServlet.doGet(FeedServlet.java:35)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	org.jboss.seam.web.ContextFilter$1.process(ContextFilter.java:42)
	org.jboss.seam.servlet.ContextualHttpServletRequest.run(ContextualHttpServletRequest.java:53)
	org.jboss.seam.web.ContextFilter.doFilter(ContextFilter.java:37)
	org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

root cause

javax.jcr.RepositoryException: failed to resolve path null relative to /drools:repository/drools:package_area: empty path: empty path
	org.apache.jackrabbit.core.NodeImpl.resolveRelativeNodePath(NodeImpl.java:237)
	org.apache.jackrabbit.core.NodeImpl.getNode(NodeImpl.java:2468)
	org.drools.repository.RulesRepository.loadPackage(RulesRepository.java:364)
	org.drools.guvnor.server.files.FeedServlet.doPackageFeed(FeedServlet.java:80)
	org.drools.guvnor.server.files.FeedServlet.access$000(FeedServlet.java:26)
	org.drools.guvnor.server.files.FeedServlet$1.a(FeedServlet.java:37)
	org.drools.guvnor.server.files.RepositoryServlet.doAuthorizedAction(RepositoryServlet.java:93)
	org.drools.guvnor.server.files.FeedServlet.doGet(FeedServlet.java:35)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	org.jboss.seam.web.ContextFilter$1.process(ContextFilter.java:42)
	org.jboss.seam.servlet.ContextualHttpServletRequest.run(ContextualHttpServletRequest.java:53)
	org.jboss.seam.web.ContextFilter.doFilter(ContextFilter.java:37)
	org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

root cause

org.apache.jackrabbit.spi.commons.conversion.MalformedPathException: empty path
	org.apache.jackrabbit.spi.commons.conversion.PathParser.parse(PathParser.java:90)
	org.apache.jackrabbit.spi.commons.conversion.PathParser.parse(PathParser.java:57)
	org.apache.jackrabbit.spi.commons.conversion.ParsingPathResolver.getQPath(ParsingPathResolver.java:60)
	org.apache.jackrabbit.spi.commons.conversion.CachingPathResolver.getQPath(CachingPathResolver.java:77)
	org.apache.jackrabbit.spi.commons.conversion.DefaultNamePathResolver.getQPath(DefaultNamePathResolver.java:69)
	org.apache.jackrabbit.core.SessionImpl.getQPath(SessionImpl.java:649)
	org.apache.jackrabbit.core.NodeImpl.resolveRelativeNodePath(NodeImpl.java:209)
	org.apache.jackrabbit.core.NodeImpl.getNode(NodeImpl.java:2468)
	org.drools.repository.RulesRepository.loadPackage(RulesRepository.java:364)
	org.drools.guvnor.server.files.FeedServlet.doPackageFeed(FeedServlet.java:80)
	org.drools.guvnor.server.files.FeedServlet.access$000(FeedServlet.java:26)
	org.drools.guvnor.server.files.FeedServlet$1.a(FeedServlet.java:37)
	org.drools.guvnor.server.files.RepositoryServlet.doAuthorizedAction(RepositoryServlet.java:93)
	org.drools.guvnor.server.files.FeedServlet.doGet(FeedServlet.java:35)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	org.jboss.seam.web.ContextFilter$1.process(ContextFilter.java:42)
	org.jboss.seam.servlet.ContextualHttpServletRequest.run(ContextualHttpServletRequest.java:53)
	org.jboss.seam.web.ContextFilter.doFilter(ContextFilter.java:37)
	org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

note The full stack trace of the root cause is available in the JBossWeb/2.0.0.GA_CP logs.
JBossWeb/2.0.0.GA_CP
Comment 3 Jaroslaw Kijanowski 2009-08-31 15:45:48 UTC 
Link: Added: This issue related BRMS-135
Comment 4 Len DiMaggio 2009-09-02 15:58:55 UTC 
This URL is generated - but it does not exist:

http://127.0.0.1:8080/jboss-brms/org.drools.guvnor.Guvnor/feed/package?name\x3dmortgages\x26viewUrl\x3dhttp://127.0.0.1:8080/jboss-brms/org.drools.guvnor.Guvnor/Guvnor.html\x26status\x3d*
Comment 5 Len DiMaggio 2009-09-02 15:59:54 UTC 
SWF file illustrating how to reproduce this bug
Comment 6 Len DiMaggio 2009-09-02 15:59:54 UTC 
Attachment: Added: bug.html
Attachment: Added: bug.swf
Comment 7 Len DiMaggio 2009-09-02 18:20:33 UTC 
Attachment: Added: server.log
Comment 8 Len DiMaggio 2009-09-17 14:37:33 UTC 
It's working in CR2 - see screenshot
Comment 9 Len DiMaggio 2009-09-17 14:37:33 UTC 
Attachment: Added: BRMS-103.jpg
Comment 10 Len DiMaggio 2009-09-17 14:38:21 UTC 
Verified in CR2 - see screenshot.
Comment 11 David Le Sage 2009-10-02 05:55:17 UTC 
Please confirm the following for the Release Notes documentation and fill in the missing information.

Dot point explanations are fine:

The CAUSE (what was actually broken)
 *

CONSEQUENCES of the bug (how users might have encountered it)
 * RSS feeds produced 500 error.

The FIX (what was changed to eliminate this bug)
 *

RESULTS of the fix (what now happens for users)
* RSS feeds now work.
Comment 12 Dana Mison 2009-10-05 04:40:45 UTC 
added to the 5.0.CP01 release notes as resolved:

GUVNOR-285
The RSS feeds were returning a Code 500 HTTP error instead of the expected RSS feed.
Comment 13 Jervis Liu 2009-10-06 11:41:18 UTC 
The CAUSE (what was actually broken)
 * Feed XML contains ampersand (&). An ampersand (&) character must be followed by a valid entity name and then a semicolon (;). "&" characters must be HTML encoded as &amp;, unless they precede an entity name, such as &lt; or &gt;.


CONSEQUENCES of the bug (how users might have encountered it)
 * URL for RSS feeds is not working. Open the URL, it results in a HTTP 500 error. Returned error message would look like this: 
A semi colon character was expected.  Line: 16 Character: 145 


The FIX (what was changed to eliminate this bug)
 *

RESULTS of the fix (what now happens for users)
* RSS feeds now work.