https://issues.apache.org/bugzilla/show_bug.cgi?id=56840
Bug ID: 56840
Summary: RewriteValve in context.xml throws
NullPointerException
Product: Tomcat 8
Version: 8.0.9
Hardware: PC
Status: NEW
Severity: normal
Priority: P2
Component: Catalina
Assignee: dev@tomcat.apache.org
Reporter: stuer...@afi-stuttgart.de
I've added a RewriteValve in my context.xml, and have a simple rewrite.config
with one line:
RewriteRule ^/(?:[^/]+/)?(resources/.*)$ /SAPUI5/$1
When requesting a page with the matching URL, a 500 error is returned:
java.lang.NullPointerException
org.apache.catalina.connector.Request.getContextPath(Request.java:1901)
org.apache.catalina.valves.rewrite.RewriteValve.invoke(RewriteValve.java:451)
[...]
I think the problem lies around line 447 in RewriteValve.java:
447 request.getCoyoteRequest().requestURI().setString(null);
448 CharChunk chunk =
request.getCoyoteRequest().requestURI().getCharChunk();
449 chunk.recycle();
450 if (context) {
451 chunk.append(request.getContextPath());
452 }
setString(null) sets the MessageBytes type to TYPE_NULL, and (context is true
in my case) request.getContextPath() tries to access cleared value, which
fails.
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