[
http://jira.amdatu.org/jira/browse/AMDATU-382?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Bram de Kruijff updated AMDATU-382:
-----------------------------------
Summary: Upgrade Felix framework to recent stable (was: Upgrade to
Felix framework 3.2.1)
Fix Version/s: 0.3.0
Description:
Currently we run the Felix framework version 3.0.2. The latest version is
3.2.1.
In the core integration test, the 3.2.1 version of the felix framework is used
instead. Using this newer version I encountered an issue in the integration
test, that will also occur in the Amdatu runtime. The problem manifests itself
by the fact that the JSP bundle doesn't start, caused by this error:
{noformat}
JAXP: find factoryId =javax.xml.parsers.DocumentBuilderFactory
JAXP: found jar
resource=META-INF/services/javax.xml.parsers.DocumentBuilderFactory using
ClassLoader: null
JAXP: found in resource, value=org.apache.xerces.jaxp.DocumentBuilderFactoryImpl
[2011-05-20 08:45:22] ERROR: An error occurred while handling JSP request
[org.amdatu.web.jsp]
javax.servlet.ServletException: javax.xml.parsers.FactoryConfigurationError:
Provider org.apache.xerces.jaxp.DocumentBui
lderFactoryImpl not found
org.apache.felix.log.LogException: javax.servlet.ServletException:
javax.xml.parsers.FactoryConfigurationError: Provider
org.apache.xerces.jaxp.DocumentBuilderFactoryImpl not found
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:268)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at
org.amdatu.web.jsp.service.ResourceProviderJspServlet$2.call(ResourceProviderJspServlet.java:125)
at
org.amdatu.web.jsp.service.ResourceProviderJspServlet$2.call(ResourceProviderJspServlet.java:123)
at
org.ops4j.pax.swissbox.core.ContextClassLoaderUtils.doWithClassLoader(ContextClassLoaderUtils.java:60)
at
org.amdatu.web.jsp.service.ResourceProviderJspServlet.service(ResourceProviderJspServlet.java:121)
at
org.amdatu.web.dispatcher.handler.ServletHandler.handle(ServletHandler.java:70)
at
org.amdatu.web.dispatcher.dispatch.CustomFilterChain.doFilter(CustomFilterChain.java:56)
at
org.amdatu.web.dispatcher.dispatch.CustomFilterPipeline.dispatch(CustomFilterPipeline.java:59)
at
org.amdatu.web.dispatcher.dispatch.ExtenderFilterChain.doFilter(ExtenderFilterChain.java:53)
at
org.amdatu.web.dispatcher.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:35)
at
org.amdatu.web.tenantresolver.parameter.service.ParameterTenantResolverExtenderFilter.doFilter(ParameterTenan
tResolverExtenderFilter.java:70)
at
org.amdatu.web.dispatcher.handler.FilterHandler.handle(FilterHandler.java:78)
at
org.amdatu.web.dispatcher.dispatch.ExtenderFilterChain.doFilter(ExtenderFilterChain.java:50)
at
org.amdatu.web.dispatcher.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:35)
at
org.amdatu.web.dispatcher.handler.FilterHandler.handle(FilterHandler.java:82)
at
org.amdatu.web.dispatcher.dispatch.ExtenderFilterChain.doFilter(ExtenderFilterChain.java:50)
at
org.amdatu.web.dispatcher.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:35)
at
org.amdatu.web.tenantresolver.hostname.service.HostnameTenantResolverExtenderFilter.doFilter(HostnameTenantRe
solverExtenderFilter.java:75)
at
org.amdatu.web.dispatcher.handler.FilterHandler.handle(FilterHandler.java:78)
at
org.amdatu.web.dispatcher.dispatch.ExtenderFilterChain.doFilter(ExtenderFilterChain.java:50)
at
org.amdatu.web.dispatcher.dispatch.ExtenderFilterPipeline.dispatch(ExtenderFilterPipeline.java:44)
at
org.amdatu.web.dispatcher.service.DispatcherServiceImpl.dispatchRequest(DispatcherServiceImpl.java:155)
at
org.amdatu.web.dispatcher.filter.DispatchInterceptFilter.doFilter(DispatchInterceptFilter.java:80)
at
org.apache.felix.http.base.internal.handler.FilterHandler.doHandle(FilterHandler.java:88)
at
org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:76)
at
org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:47)
at
org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33)
at
org.apache.felix.http.base.internal.dispatch.FilterPipeline.dispatch(FilterPipeline.java:48)
at
org.apache.felix.http.base.internal.dispatch.Dispatcher.dispatch(Dispatcher.java:39)
at
org.apache.felix.http.base.internal.DispatcherServlet.service(DispatcherServlet.java:67)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at
org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at
org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:926)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
at
org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
Caused by: org.apache.felix.log.LogException:
javax.xml.parsers.FactoryConfigurationError: Provider org.apache.xerces.ja
xp.DocumentBuilderFactoryImpl not found
at
javax.xml.parsers.DocumentBuilderFactory.newInstance(DocumentBuilderFactory.java:129)
at
org.apache.jasper.xmlparser.ParserUtils.parseXMLDocument(ParserUtils.java:89)
at
org.apache.jasper.xmlparser.ParserUtils.parseXMLDocument(ParserUtils.java:133)
at
org.apache.jasper.compiler.TldLocationsCache.getUriFromTld(TldLocationsCache.java:460)
at
org.apache.jasper.compiler.TldLocationsCache.scanJar(TldLocationsCache.java:367)
at
org.apache.jasper.compiler.TldLocationsCache.scanJars(TldLocationsCache.java:504)
at
org.apache.jasper.compiler.TldLocationsCache.init(TldLocationsCache.java:244)
at
org.apache.jasper.compiler.TldLocationsCache.getLocation(TldLocationsCache.java:219)
at
org.apache.jasper.JspCompilationContext.getTldLocation(JspCompilationContext.java:553)
at
org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:385)
at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:449)
at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1396)
{noformat}
After debugging 3.0.2 and 3.1.2 it appeared to be caused by a change in the
implicit boot delegation mechanism. See line 1446 (method
doImplicitBootDelegation) in 3.0.2 and line 1521 (method
doImplicitBootDelegation) in 3.2.1. In 3.0.2 the class is loaded from the
parent classloader (which is the system classloader), in 3.2.1 this method
returns null
was:
Currently we run the Felix framework version 3.0.2. The latest version is
3.2.1.
In the core integration test, the 3.2.1 version of the felix framework is used
instead. Using this newer version I encountered an issue in the integration
test, that will also occur in the Amdatu runtime. The problem manifests itself
by the fact that the JSP bundle doesn't start, caused by this error:
JAXP: find factoryId =javax.xml.parsers.DocumentBuilderFactory
JAXP: found jar
resource=META-INF/services/javax.xml.parsers.DocumentBuilderFactory using
ClassLoader: null
JAXP: found in resource, value=org.apache.xerces.jaxp.DocumentBuilderFactoryImpl
[2011-05-20 08:45:22] ERROR: An error occurred while handling JSP request
[org.amdatu.web.jsp]
javax.servlet.ServletException: javax.xml.parsers.FactoryConfigurationError:
Provider org.apache.xerces.jaxp.DocumentBui
lderFactoryImpl not found
org.apache.felix.log.LogException: javax.servlet.ServletException:
javax.xml.parsers.FactoryConfigurationError: Provider
org.apache.xerces.jaxp.DocumentBuilderFactoryImpl not found
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:268)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at
org.amdatu.web.jsp.service.ResourceProviderJspServlet$2.call(ResourceProviderJspServlet.java:125)
at
org.amdatu.web.jsp.service.ResourceProviderJspServlet$2.call(ResourceProviderJspServlet.java:123)
at
org.ops4j.pax.swissbox.core.ContextClassLoaderUtils.doWithClassLoader(ContextClassLoaderUtils.java:60)
at
org.amdatu.web.jsp.service.ResourceProviderJspServlet.service(ResourceProviderJspServlet.java:121)
at
org.amdatu.web.dispatcher.handler.ServletHandler.handle(ServletHandler.java:70)
at
org.amdatu.web.dispatcher.dispatch.CustomFilterChain.doFilter(CustomFilterChain.java:56)
at
org.amdatu.web.dispatcher.dispatch.CustomFilterPipeline.dispatch(CustomFilterPipeline.java:59)
at
org.amdatu.web.dispatcher.dispatch.ExtenderFilterChain.doFilter(ExtenderFilterChain.java:53)
at
org.amdatu.web.dispatcher.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:35)
at
org.amdatu.web.tenantresolver.parameter.service.ParameterTenantResolverExtenderFilter.doFilter(ParameterTenan
tResolverExtenderFilter.java:70)
at
org.amdatu.web.dispatcher.handler.FilterHandler.handle(FilterHandler.java:78)
at
org.amdatu.web.dispatcher.dispatch.ExtenderFilterChain.doFilter(ExtenderFilterChain.java:50)
at
org.amdatu.web.dispatcher.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:35)
at
org.amdatu.web.dispatcher.handler.FilterHandler.handle(FilterHandler.java:82)
at
org.amdatu.web.dispatcher.dispatch.ExtenderFilterChain.doFilter(ExtenderFilterChain.java:50)
at
org.amdatu.web.dispatcher.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:35)
at
org.amdatu.web.tenantresolver.hostname.service.HostnameTenantResolverExtenderFilter.doFilter(HostnameTenantRe
solverExtenderFilter.java:75)
at
org.amdatu.web.dispatcher.handler.FilterHandler.handle(FilterHandler.java:78)
at
org.amdatu.web.dispatcher.dispatch.ExtenderFilterChain.doFilter(ExtenderFilterChain.java:50)
at
org.amdatu.web.dispatcher.dispatch.ExtenderFilterPipeline.dispatch(ExtenderFilterPipeline.java:44)
at
org.amdatu.web.dispatcher.service.DispatcherServiceImpl.dispatchRequest(DispatcherServiceImpl.java:155)
at
org.amdatu.web.dispatcher.filter.DispatchInterceptFilter.doFilter(DispatchInterceptFilter.java:80)
at
org.apache.felix.http.base.internal.handler.FilterHandler.doHandle(FilterHandler.java:88)
at
org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:76)
at
org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:47)
at
org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33)
at
org.apache.felix.http.base.internal.dispatch.FilterPipeline.dispatch(FilterPipeline.java:48)
at
org.apache.felix.http.base.internal.dispatch.Dispatcher.dispatch(Dispatcher.java:39)
at
org.apache.felix.http.base.internal.DispatcherServlet.service(DispatcherServlet.java:67)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at
org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at
org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:926)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
at
org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
Caused by: org.apache.felix.log.LogException:
javax.xml.parsers.FactoryConfigurationError: Provider org.apache.xerces.ja
xp.DocumentBuilderFactoryImpl not found
at
javax.xml.parsers.DocumentBuilderFactory.newInstance(DocumentBuilderFactory.java:129)
at
org.apache.jasper.xmlparser.ParserUtils.parseXMLDocument(ParserUtils.java:89)
at
org.apache.jasper.xmlparser.ParserUtils.parseXMLDocument(ParserUtils.java:133)
at
org.apache.jasper.compiler.TldLocationsCache.getUriFromTld(TldLocationsCache.java:460)
at
org.apache.jasper.compiler.TldLocationsCache.scanJar(TldLocationsCache.java:367)
at
org.apache.jasper.compiler.TldLocationsCache.scanJars(TldLocationsCache.java:504)
at
org.apache.jasper.compiler.TldLocationsCache.init(TldLocationsCache.java:244)
at
org.apache.jasper.compiler.TldLocationsCache.getLocation(TldLocationsCache.java:219)
at
org.apache.jasper.JspCompilationContext.getTldLocation(JspCompilationContext.java:553)
at
org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:385)
at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:449)
at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1396)
After debugging 3.0.2 and 3.1.2 it appeared to be caused by a change in the
implicit boot delegation mechanism. See line 1446 (method
doImplicitBootDelegation) in 3.0.2 and line 1521 (method
doImplicitBootDelegation) in 3.2.1. In 3.0.2 the class is loaded from the
parent classloader (which is the system classloader), in 3.2.1 this method
returns null
We are still at 3.0.2, bumping this issue and scheduling for 0.3.0 while latest
and greatest is 4.0.2. I just consistently ran into a deadlock (attached dump)
during framework boot with some 20 tenant launching. A quick upgrade to 4.0.2
solved it...
> Upgrade Felix framework to recent stable
> ----------------------------------------
>
> Key: AMDATU-382
> URL: http://jira.amdatu.org/jira/browse/AMDATU-382
> Project: Amdatu
> Issue Type: Improvement
> Components: Amdatu Core
> Reporter: Ivo Ladage - van Doorn
> Fix For: 0.3.0
>
> Attachments: felix302_deadlock_stackdump.txt
>
>
> Currently we run the Felix framework version 3.0.2. The latest version is
> 3.2.1.
> In the core integration test, the 3.2.1 version of the felix framework is
> used instead. Using this newer version I encountered an issue in the
> integration test, that will also occur in the Amdatu runtime. The problem
> manifests itself by the fact that the JSP bundle doesn't start, caused by
> this error:
> {noformat}
> JAXP: find factoryId =javax.xml.parsers.DocumentBuilderFactory
> JAXP: found jar
> resource=META-INF/services/javax.xml.parsers.DocumentBuilderFactory using
> ClassLoader: null
> JAXP: found in resource,
> value=org.apache.xerces.jaxp.DocumentBuilderFactoryImpl
> [2011-05-20 08:45:22] ERROR: An error occurred while handling JSP request
> [org.amdatu.web.jsp]
> javax.servlet.ServletException: javax.xml.parsers.FactoryConfigurationError:
> Provider org.apache.xerces.jaxp.DocumentBui
> lderFactoryImpl not found
> org.apache.felix.log.LogException: javax.servlet.ServletException:
> javax.xml.parsers.FactoryConfigurationError: Provider
> org.apache.xerces.jaxp.DocumentBuilderFactoryImpl not found
> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:268)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> at
> org.amdatu.web.jsp.service.ResourceProviderJspServlet$2.call(ResourceProviderJspServlet.java:125)
> at
> org.amdatu.web.jsp.service.ResourceProviderJspServlet$2.call(ResourceProviderJspServlet.java:123)
> at
> org.ops4j.pax.swissbox.core.ContextClassLoaderUtils.doWithClassLoader(ContextClassLoaderUtils.java:60)
> at
> org.amdatu.web.jsp.service.ResourceProviderJspServlet.service(ResourceProviderJspServlet.java:121)
> at
> org.amdatu.web.dispatcher.handler.ServletHandler.handle(ServletHandler.java:70)
> at
> org.amdatu.web.dispatcher.dispatch.CustomFilterChain.doFilter(CustomFilterChain.java:56)
> at
> org.amdatu.web.dispatcher.dispatch.CustomFilterPipeline.dispatch(CustomFilterPipeline.java:59)
> at
> org.amdatu.web.dispatcher.dispatch.ExtenderFilterChain.doFilter(ExtenderFilterChain.java:53)
> at
> org.amdatu.web.dispatcher.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:35)
> at
> org.amdatu.web.tenantresolver.parameter.service.ParameterTenantResolverExtenderFilter.doFilter(ParameterTenan
> tResolverExtenderFilter.java:70)
> at
> org.amdatu.web.dispatcher.handler.FilterHandler.handle(FilterHandler.java:78)
> at
> org.amdatu.web.dispatcher.dispatch.ExtenderFilterChain.doFilter(ExtenderFilterChain.java:50)
> at
> org.amdatu.web.dispatcher.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:35)
> at
> org.amdatu.web.dispatcher.handler.FilterHandler.handle(FilterHandler.java:82)
> at
> org.amdatu.web.dispatcher.dispatch.ExtenderFilterChain.doFilter(ExtenderFilterChain.java:50)
> at
> org.amdatu.web.dispatcher.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:35)
> at
> org.amdatu.web.tenantresolver.hostname.service.HostnameTenantResolverExtenderFilter.doFilter(HostnameTenantRe
> solverExtenderFilter.java:75)
> at
> org.amdatu.web.dispatcher.handler.FilterHandler.handle(FilterHandler.java:78)
> at
> org.amdatu.web.dispatcher.dispatch.ExtenderFilterChain.doFilter(ExtenderFilterChain.java:50)
> at
> org.amdatu.web.dispatcher.dispatch.ExtenderFilterPipeline.dispatch(ExtenderFilterPipeline.java:44)
> at
> org.amdatu.web.dispatcher.service.DispatcherServiceImpl.dispatchRequest(DispatcherServiceImpl.java:155)
> at
> org.amdatu.web.dispatcher.filter.DispatchInterceptFilter.doFilter(DispatchInterceptFilter.java:80)
> at
> org.apache.felix.http.base.internal.handler.FilterHandler.doHandle(FilterHandler.java:88)
> at
> org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:76)
> at
> org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:47)
> at
> org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33)
> at
> org.apache.felix.http.base.internal.dispatch.FilterPipeline.dispatch(FilterPipeline.java:48)
> at
> org.apache.felix.http.base.internal.dispatch.Dispatcher.dispatch(Dispatcher.java:39)
> at
> org.apache.felix.http.base.internal.DispatcherServlet.service(DispatcherServlet.java:67)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> at
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> at
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390)
> at
> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> at
> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
> at
> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> at org.mortbay.jetty.Server.handle(Server.java:326)
> at
> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> at
> org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:926)
> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> at
> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> at
> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> Caused by: org.apache.felix.log.LogException:
> javax.xml.parsers.FactoryConfigurationError: Provider org.apache.xerces.ja
> xp.DocumentBuilderFactoryImpl not found
> at
> javax.xml.parsers.DocumentBuilderFactory.newInstance(DocumentBuilderFactory.java:129)
> at
> org.apache.jasper.xmlparser.ParserUtils.parseXMLDocument(ParserUtils.java:89)
> at
> org.apache.jasper.xmlparser.ParserUtils.parseXMLDocument(ParserUtils.java:133)
> at
> org.apache.jasper.compiler.TldLocationsCache.getUriFromTld(TldLocationsCache.java:460)
> at
> org.apache.jasper.compiler.TldLocationsCache.scanJar(TldLocationsCache.java:367)
> at
> org.apache.jasper.compiler.TldLocationsCache.scanJars(TldLocationsCache.java:504)
> at
> org.apache.jasper.compiler.TldLocationsCache.init(TldLocationsCache.java:244)
> at
> org.apache.jasper.compiler.TldLocationsCache.getLocation(TldLocationsCache.java:219)
> at
> org.apache.jasper.JspCompilationContext.getTldLocation(JspCompilationContext.java:553)
> at
> org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:385)
> at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:449)
> at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1396)
> {noformat}
> After debugging 3.0.2 and 3.1.2 it appeared to be caused by a change in the
> implicit boot delegation mechanism. See line 1446 (method
> doImplicitBootDelegation) in 3.0.2 and line 1521 (method
> doImplicitBootDelegation) in 3.2.1. In 3.0.2 the class is loaded from the
> parent classloader (which is the system classloader), in 3.2.1 this method
> returns null
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