Jeff, i presume same issue that we saw
http://marc.theaimsgroup.com/?l=forrest-dev&m=102767862102557
You need "build.sh clean docs" every time.
--David

Jeff Turner wrote:
> Hi,
> 
> Running './build.sh docs' the first time works fine. The second time, it
> dies with:
> 
> .
>   [broken link]--> /forrest/xml-site/
> FATAL_E 2002-08-16 19:22:05.579 [cocoon  ] (): Exception caught 
> org.apache.cocoon.ProcessingException: Failed to execute pipeline.: java.lang.NullPointerException: 
>         at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:506)
>         at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:204)
>         at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:476)
>         at org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:146)
>         at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:107)
>         at org.apache.cocoon.components.treeprocessor.ContainerNode.invoke(ContainerNode.java:68)
>         at org.apache.cocoon.components.treeprocessor.sitemap.CallNode.invoke(CallNode.java:134)
>         at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:83)
>         at org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:160)
>         at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:107)
>         at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:157)
>         at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:107)
>         at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:152)
>         at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:328)
>         at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:309)
>         at org.apache.cocoon.Cocoon.process(Cocoon.java:585)
>         at org.apache.cocoon.Main.getType(Main.java:983)
>         at org.apache.cocoon.Main.translateURI(Main.java:842)
>         at org.apache.cocoon.Main.processURI(Main.java:773)
>         at org.apache.cocoon.Main.process(Main.java:610)
>         at org.apache.cocoon.Main.main(Main.java:424)
> java.lang.NullPointerException: 
>         at org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:387)
>         at org.apache.cocoon.environment.AbstractEnvironment.toSAX(AbstractEnvironment.java:474)
>         at org.apache.cocoon.sitemap.ContentAggregator.generate(ContentAggregator.java:155)
>         at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:501)
>         at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:204)
>         at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:476)
>         at org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:146)
>         at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:107)
>         at org.apache.cocoon.components.treeprocessor.ContainerNode.invoke(ContainerNode.java:68)
>         at org.apache.cocoon.components.treeprocessor.sitemap.CallNode.invoke(CallNode.java:134)
>         at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:83)
>         at org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:160)
>         at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:107)
>         at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:157)
>         at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:107)
>         at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:152)
>         at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:328)
>         at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:309)
>         at org.apache.cocoon.Cocoon.process(Cocoon.java:585)
>         at org.apache.cocoon.Main.getType(Main.java:983)
>         at org.apache.cocoon.Main.translateURI(Main.java:842)
>         at org.apache.cocoon.Main.processURI(Main.java:773)
>         at org.apache.cocoon.Main.process(Main.java:610)
>         at org.apache.cocoon.Main.main(Main.java:424)
> 
> BUILD FAILED
> /old/home/jeff/homeoverflow/apache/xml/xml-forrest/build.xml:380: Java returned: 1