Status: New
Owner: ----
New issue 560 by nicolas.antoniazzi: RequestDispatcher forward fail if
served page is the the welcome file
http://code.google.com/p/google-guice/issues/detail?id=560
If I want that my welcome file be a servlet that forward its rendering to a
jsp page, the process crashes in
com.google.inject.servlet.ServletDefinition$2.getPathInfo(ServletDefinition.java:206)
with :
java.lang.StringIndexOutOfBoundsException: String index out of range: -9
at java.lang.String.substring(String.java:1937)
at java.lang.String.substring(String.java:1904)
at
com.google.inject.servlet.ServletDefinition$2.getPathInfo(ServletDefinition.java:206)
at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:359)
at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
at
com.cartser.metrics.server.core.servlet.GwtServlet.doLoad(GwtServlet.java:89)
at
com.cartser.metrics.server.core.servlet.GwtServlet.doGet(GwtServlet.java:94)
...
The problem is coming from a substring operation in getPathInfo()
final int servletPathLength = getServletPath().length();
pathInfo =
getRequestURI().substring(getContextPath().length()).replaceAll("[/]{2,}", "/").substring(servletPathLength);
in my case :
getServletPath() = /index.jsp
getContextPath() = /myApp
getRequestURI() = /myApp (and not /myApp/index.jsp since index.jsp is
declared as the default welcome file)
servletPathLength = 10
so when executing the substring operation with my URI :
getRequestURI().substring(getContextPath().length()).replaceAll("[/]{2,}", "/")
==> "/"
and "/".substring(10) ==> Exception.
Maybe that a check could be added on the length before executing the second
substring() operation.
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