[
http://issues.apache.org/jira/browse/COCOON-1939?page=comments#action_12445172
]
Alexander Klimetschek commented on COCOON-1939:
-----------------------------------------------
The cocoon:/ protocol is not the problem. Now block:super: fails in one case. I
have block A <-- super <-- B. Now B calls super, then A calls block:/foo, this
is handled by B (which has a foo-matcher), which in turn wants to call
block:super:/dforms-model-directory.xml, which fails. So it goes up, down and
the follwing up does not work.
The simplified and annotated stacktrace:
javax.servlet.ServletException: No dispatcher for
block:super:/dforms-model-directory.xml
at
org.apache.cocoon.blocks.BlockConnection.getInputStream(BlockConnection.java:114)
at
org.apache.cocoon.blocks.components.BlockSource.getInputStream(BlockSource.java:51)
at
org.apache.cocoon.components.source.SourceUtil.getInputSource(SourceUtil.java:462)
at
org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:298)
at
org.apache.cocoon.sitemap.DefaultContentAggregator.generate(DefaultContentAggregator.java:123)
(Block B)
...
at
org.apache.cocoon.sitemap.SitemapServlet.service(SitemapServlet.java:123)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.cocoon.blocks.BlockContext$PathDispatcher.forward(BlockContext.java:436)
at
org.apache.cocoon.blocks.BlockConnection.getInputStream(BlockConnection.java:115)
at
org.apache.cocoon.blocks.components.BlockSource.getInputStream(BlockSource.java:51)
at
org.apache.cocoon.components.source.SourceUtil.getInputSource(SourceUtil.java:462)
at
org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:298)
at
org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:116)
(Block A)
...
at
org.apache.cocoon.sitemap.SitemapServlet.service(SitemapServlet.java:123)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.cocoon.blocks.BlockContext$PathDispatcher.forward(BlockContext.java:436)
at
org.apache.cocoon.blocks.BlockContext$NamedDispatcher.forward(BlockContext.java:394)
at
org.apache.cocoon.blocks.BlockConnection.getInputStream(BlockConnection.java:115)
at
org.apache.cocoon.blocks.components.BlockSource.getInputStream(BlockSource.java:51)
at
org.apache.cocoon.components.source.SourceUtil.getInputSource(SourceUtil.java:462)
at
org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:298)
at
org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:116)
(Block B)
...
at
org.apache.cocoon.sitemap.SitemapServlet.service(SitemapServlet.java:123)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.cocoon.blocks.BlockContext$PathDispatcher.forward(BlockContext.java:436)
at org.apache.cocoon.blocks.BlockServlet.service(BlockServlet.java:125)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.cocoon.blocks.DispatcherServlet.service(DispatcherServlet.java:124)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.cocoon.bootstrap.servlet.ShieldingServlet.service(ShieldingServlet.java:106)
at
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:443)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1050)
at
org.apache.cocoon.servlet.multipart.MultipartFilter.doFilter(MultipartFilter.java:104)
at
org.apache.cocoon.bootstrap.servlet.ShieldingServletFilter.doFilter(ShieldingServletFilter.java:50)
...
The full stacktrace:
javax.servlet.ServletException: No dispatcher for
block:super:/dforms-model-directory.xml
at
org.apache.cocoon.blocks.BlockConnection.getInputStream(BlockConnection.java:114)
at
org.apache.cocoon.blocks.components.BlockSource.getInputStream(BlockSource.java:51)
at
org.apache.cocoon.components.source.SourceUtil.getInputSource(SourceUtil.java:462)
at
org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:298)
at
org.apache.cocoon.sitemap.DefaultContentAggregator.generate(DefaultContentAggregator.java:123)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.cocoon.core.container.spring.avalon.PoolableFactoryBean$ProxyHandler.invoke(PoolableFactoryBean.java:349)
at $Proxy11.generate(Unknown Source)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:537)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:437)
at sun.reflect.GeneratedMethodAccessor18.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.cocoon.core.container.spring.avalon.PoolableFactoryBean$ProxyHandler.invoke(PoolableFactoryBean.java:349)
at $Proxy2.process(Unknown Source)
at
org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:134)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55)
at
org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:77)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:152)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:77)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:93)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:239)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:170)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:228)
at
org.apache.cocoon.sitemap.SitemapServlet.service(SitemapServlet.java:123)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.cocoon.blocks.BlockContext$PathDispatcher.forward(BlockContext.java:436)
at
org.apache.cocoon.blocks.BlockConnection.getInputStream(BlockConnection.java:115)
at
org.apache.cocoon.blocks.components.BlockSource.getInputStream(BlockSource.java:51)
at
org.apache.cocoon.components.source.SourceUtil.getInputSource(SourceUtil.java:462)
at
org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:298)
at
org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:116)
at sun.reflect.GeneratedMethodAccessor40.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.cocoon.core.container.spring.avalon.PoolableFactoryBean$ProxyHandler.invoke(PoolableFactoryBean.java:349)
at $Proxy3.generate(Unknown Source)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:537)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:722)
at sun.reflect.GeneratedMethodAccessor71.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.cocoon.core.container.spring.avalon.PoolableFactoryBean$ProxyHandler.invoke(PoolableFactoryBean.java:349)
at $Proxy2.process(Unknown Source)
at
org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:344)
at
org.apache.cocoon.components.source.SourceUtil.toSAX(SourceUtil.java:97)
at
org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:293)
at
org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:116)
at sun.reflect.GeneratedMethodAccessor40.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.cocoon.core.container.spring.avalon.PoolableFactoryBean$ProxyHandler.invoke(PoolableFactoryBean.java:349)
at $Proxy3.generate(Unknown Source)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:537)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:722)
at sun.reflect.GeneratedMethodAccessor71.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.cocoon.core.container.spring.avalon.PoolableFactoryBean$ProxyHandler.invoke(PoolableFactoryBean.java:349)
at $Proxy2.process(Unknown Source)
at
org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:344)
at
org.apache.cocoon.components.source.SourceUtil.toSAX(SourceUtil.java:97)
at
org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:293)
at
org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:116)
at sun.reflect.GeneratedMethodAccessor40.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.cocoon.core.container.spring.avalon.PoolableFactoryBean$ProxyHandler.invoke(PoolableFactoryBean.java:349)
at $Proxy3.generate(Unknown Source)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:537)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:437)
at sun.reflect.GeneratedMethodAccessor18.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.cocoon.core.container.spring.avalon.PoolableFactoryBean$ProxyHandler.invoke(PoolableFactoryBean.java:349)
at $Proxy2.process(Unknown Source)
at
org.apache.cocoon.components.source.impl.SitemapSource.getInputStream(SitemapSource.java:198)
at
org.apache.cocoon.reading.ResourceReader.generate(ResourceReader.java:329)
at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.cocoon.core.container.spring.avalon.PoolableFactoryBean$ProxyHandler.invoke(PoolableFactoryBean.java:349)
at $Proxy8.generate(Unknown Source)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processReader(AbstractProcessingPipeline.java:649)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:429)
at sun.reflect.GeneratedMethodAccessor18.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.cocoon.core.container.spring.avalon.PoolableFactoryBean$ProxyHandler.invoke(PoolableFactoryBean.java:349)
at $Proxy2.process(Unknown Source)
at
org.apache.cocoon.components.treeprocessor.sitemap.ReadNode.invoke(ReadNode.java:95)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55)
at
org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:77)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:152)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:77)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:93)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:239)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:170)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:228)
at
org.apache.cocoon.sitemap.SitemapServlet.service(SitemapServlet.java:123)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.cocoon.blocks.BlockContext$PathDispatcher.forward(BlockContext.java:436)
at
org.apache.cocoon.blocks.BlockContext$NamedDispatcher.forward(BlockContext.java:394)
at
org.apache.cocoon.blocks.BlockConnection.getInputStream(BlockConnection.java:115)
at
org.apache.cocoon.blocks.components.BlockSource.getInputStream(BlockSource.java:51)
at
org.apache.cocoon.components.source.SourceUtil.getInputSource(SourceUtil.java:462)
at
org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:298)
at
org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:116)
at sun.reflect.GeneratedMethodAccessor40.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.cocoon.core.container.spring.avalon.PoolableFactoryBean$ProxyHandler.invoke(PoolableFactoryBean.java:349)
at $Proxy3.generate(Unknown Source)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:537)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:437)
at sun.reflect.GeneratedMethodAccessor18.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.cocoon.core.container.spring.avalon.PoolableFactoryBean$ProxyHandler.invoke(PoolableFactoryBean.java:349)
at $Proxy2.process(Unknown Source)
at
org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:134)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:77)
at
org.apache.cocoon.components.treeprocessor.sitemap.SwitchSelectNode.invoke(SwitchSelectNode.java:88)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:77)
at
org.apache.cocoon.components.treeprocessor.ContainerNode.invoke(ContainerNode.java:37)
at
org.apache.cocoon.components.treeprocessor.CategoryNode.invokeByName(CategoryNode.java:65)
at
org.apache.cocoon.components.treeprocessor.sitemap.CallNode.invoke(CallNode.java:83)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55)
at
org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:77)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:152)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:77)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:93)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:239)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:170)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:228)
at
org.apache.cocoon.sitemap.SitemapServlet.service(SitemapServlet.java:123)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.cocoon.blocks.BlockContext$PathDispatcher.forward(BlockContext.java:436)
at org.apache.cocoon.blocks.BlockServlet.service(BlockServlet.java:125)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.cocoon.blocks.DispatcherServlet.service(DispatcherServlet.java:124)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.cocoon.bootstrap.servlet.ShieldingServlet.service(ShieldingServlet.java:106)
at
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:443)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1050)
at
org.apache.cocoon.servlet.multipart.MultipartFilter.doFilter(MultipartFilter.java:104)
at
org.apache.cocoon.bootstrap.servlet.ShieldingServletFilter.doFilter(ShieldingServletFilter.java:50)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1041)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:354)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:226)
at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:615)
at
org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:149)
at
org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:123)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:141)
at org.mortbay.jetty.Server.handle(Server.java:269)
at
org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:430)
at
org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:678)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:492)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:199)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
at
org.mortbay.jetty.nio.HttpChannelEndPoint.run(HttpChannelEndPoint.java:270)
at
org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:475)
> Stack overflow when inheriting from block that alread inherits from another
> one
> -------------------------------------------------------------------------------
>
> Key: COCOON-1939
> URL: http://issues.apache.org/jira/browse/COCOON-1939
> Project: Cocoon
> Issue Type: Bug
> Components: - Blocks Framework
> Affects Versions: 2.2-dev (Current SVN)
> Reporter: Alexander Klimetschek
>
> There are problems with the following scenario: I have one Block A, another
> one B that has A as super-block defined and a third one C that has B as
> super-block defined.
> The super-relation between B and A works ok, but if you start in C, then
> forward to B, which in turn wants to forward to block A (all via the
> block:super: protocol), a stack overflow happens. It looks like he always
> thinks he is in C, so that block:super: from B will always get to B, thus
> creating an endless loop.
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