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  1. JDK
  2. JDK-6587780

java.net.URI#normalize method filters out multiple slashes

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    • x86
    • solaris_2.5.1, solaris_nevada

    Description

      FULL PRODUCT VERSION :
      java version "1.6.0_01"
      Java(TM) SE Runtime Environment (build 1.6.0_01-b06)
      Java HotSpot(TM) Client VM (build 1.6.0_01-b06, mixed mode, sharing)


      ADDITIONAL OS VERSION INFORMATION :
      SunOS 5.11 snv_61 i86pc i386 i86pc

      A DESCRIPTION OF THE PROBLEM :
      when normalizing URIs with multiple slashes
      using java.net.URI method normalize,
      it works like follows:

      http://host/seg1//seg2 -> http://host/seg1/seg2
                                 ^^ ^
      which is wrong. According to javadoc, it should only
      replace unnecessary "." and ".." segments:
      --quote--
      Normalization is the process of removing unnecessary "." and ".." segments from
      the path component of a hierarchical URI. Each "." segment is simply removed. A
      ".." segment is removed only if it is preceded by a non-".." segment.
      Normalization has no effect upon opaque URIs.
      --quote--

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      following code:
      --cuthere--
      URI baseURI = new URI("http://host/seg1//seg2");
      System.out.println("baseURI.toString() = " + baseURI.toString());
      System.out.println("baseURI.normalize().toString() = " +
      baseURI.normalize().toString());
      --cuthere--

      produces:
      --cuthere--
      baseURI.toString() = http://host/seg1//seg2
      baseURI.normalize().toString() = http://host/seg1/seg2
      --cuthere--

      EXPECTED VERSUS ACTUAL BEHAVIOR :
      EXPECTED -
      baseURI.toString() = http://host/seg1//seg2
      baseURI.normalize().toString() = http://host/seg1//seg2
      ACTUAL -
      baseURI.toString() = http://host/seg1//seg2
      baseURI.normalize().toString() = http://host/seg1/seg2

      REPRODUCIBILITY :
      This bug can be reproduced always.

      ---------- BEGIN SOURCE ----------
      import java.net.URI;
      import java.net.URISyntaxException;

      /**
       *
       * @author japod
       */
      public class UriNormalizeIssue {

          /** Creates a new instance of Main */
          public UriNormalizeIssue() {
          }

          /**
           * @param args the command line arguments
           */
          public static void main(String[] args) {
              try {
                  URI baseURI = new URI("http://host/seg1//seg2");
                  System.out.println("baseURI.toString() = " + baseURI.toString());
                  System.out.println("baseURI.normalize().toString() = " + baseURI.normalize().toString());
              } catch (URISyntaxException ex) {
                  ex.printStackTrace();
              }
          }
      }

      ---------- END SOURCE ----------

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            dfuchs Daniel Fuchs
            ndcosta Nelson Dcosta (Inactive)
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              Updated:
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