PI87522: getRequestUri() in a JAX-RS resource throws IllegalArgumentException when URI contains UTF8 characters

9.0.0.6: WebSphere Application Server traditional V9.0 Fix Pack 6
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
9.0.0.7: WebSphere Application Server traditional V9.0 Fix Pack 7
9.0.0.8: WebSphere Application Server traditional V9.0 Fix Pack 8
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
9.0.0.9: WebSphere Application Server traditional V9.0 Fix Pack 9
9.0.0.10: WebSphere Application Server traditional V9.0 Fix Pack 10
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
9.0.0.11: WebSphere Application Server traditional V9.0 Fix Pack 11
9.0.5.0: WebSphere Application Server traditional Version 9.0.5 Refresh Pack
9.0.5.1: WebSphere Application Server traditional Version 9.0.5 Fix Pack 1
9.0.5.2: WebSphere Application Server traditional Version 9.0.5 Fix Pack 2
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
9.0.5.3: WebSphere Application Server traditional Version 9.0.5 Fix Pack 3
9.0.5.4: WebSphere Application Server traditional Version 9.0.5 Fix Pack 4
9.0.5.5: WebSphere Application Server traditional Version 9.0.5 Fix Pack 5
WebSphere Application Server traditional 9.0.5.6
9.0.5.7: WebSphere Application Server traditional Version 9.0.5 Fix Pack 7
9.0.5.8: WebSphere Application Server traditional Version 9.0.5.8
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
9.0.5.9: WebSphere Application Server traditional Version 9.0.5.9
9.0.5.10: WebSphere Application Server traditional Version 9.0.5.10
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21
9.0.5.11: WebSphere Application Server traditional Version 9.0.5.11

APAR status

• Closed as program error.

Error description

• The application uses the following URI:
  /UcaSkeleton/uca/myResource/
  
  This application has a resource class as:
  
  @Path("/myResource")
  public class MyResource
  {
  
      @Context
      private UriInfo uriInfo;
  
      protected static String escapeUnicode(String input)
      {
          StringBuilder b = new StringBuilder(input.length());
          Formatter f = new Formatter(b);
          for (char c : input.toCharArray())
          {
              if (c < 128)
              {
                  b.append(c);
              }
              else
              {
                  f.format("\\u%04x", (int) c);
              }
          }
          return b.toString();
      }
  
      @GET
      public String doGet()
      {
          System.out.println(uriInfo.getRequestUri());
          return "Hello World";
      }
  
      @GET
      @Path("/{name}")
      public String doGet(@PathParam("name") String name)
      {
          System.out.println(uriInfo.getRequestUri());
          return "Hello " + escapeUnicode(name);
      }
  }
  
  The method "uriInfo.getRequestUri() in the doGet()" throws the
  following exception:
  
  [10/19/16 16:05:21:554 MDT] 000002bd webapp        E com.ibm.ws.
  webcontainer.webapp.WebApp logServletError SRVE0293E: [Servlet
  Error]-
  [com.avaya.uca.MyApplication]:
  java.lang.IllegalArgumentException: The
  http://10.129.177.222:9080//UcaSkeleton-3.2.0.0.7/uca/myResource
  /%60}%
  20%60? variable was not supplied a value. Provide a value for
  this
  variable.
          at org.apache.wink.common.internal.uritemplate.
  UriTemplateProcessor$Literal.assertValid(UriTemplateProcessor.ja
  va:380)
          at org.apache.wink.common.internal.uritemplate.
  UriTemplateProcessor$Literal.<init>(UriTemplateProcessor.java:36
  9)
          at org.apache.wink.common.internal.uritemplate.
  UriTemplateProcessor$AbstractPatternBuilder.literal
  (UriTemplateProcessor.java:600)
          at org.apache.wink.common.internal.uritemplate.
  JaxRsUriTemplateProcessor$JaxRsPatternBuilder.literal
  (JaxRsUriTemplateProcessor.java:240)
          at org.apache.wink.common.internal.uritemplate.
  UriTemplateProcessor$AbstractPatternBuilder.endCompile
  (UriTemplateProcessor.java:608)
          at org.apache.wink.common.internal.uritemplate.
  JaxRsUriTemplateProcessor.compile(JaxRsUriTemplateProcessor.java
  :139)
  ...
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server                                      *
  ****************************************************************
  * PROBLEM DESCRIPTION: Certain UTF-8 characters in resource    *
  *                      path are decoded incorrectly.           *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Certain UTF-8 characters in resource path are incorrectly
  decoded. Server decodes the special character as '?' and is
  unable to find the resource.
  

Problem conclusion

• Updated our decoding algorithm to better handle edge cases.
  
  The fix for this APAR is currently targeted for inclusion in
  fix pack 8.5.5.10.  Please refer to the Recommended Updates
  page for delivery information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  WEBSPHERE APP S

• Fixed component ID

  5724J0800

Applicable component levels

• R850 PSY

     UP

• R900 PSY

     UP