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  1. JDK
  2. JDK-4352108

java.io.File.createTempFile(*) does not react on java.io.tmpdir property change

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    • Subcomponent:
    • Resolved In Build:
      beta
    • CPU:
      sparc
    • OS:
      solaris_2.5

      Description



      Name: akR10050 Date: 07/11/2000



      public static File java.io.File.createTempFile(*) methods does not react when
      java.io.tmpdir property is changed. It seems like java.io.File does not take
      runtime value of the java.io.tmpdir property, but uses own static field to
      represent it. Below is the example of described behaviour:

      --------------- Test.java ---------------
      import java.io.File;
      import java.io.IOException;

      public class Test {
          public static void main(String[] args) {
              // try to set java.io.tmpdir property to some invalid value
              String defaultTmpDir = null;
              try {
                  defaultTmpDir = System.setProperty("java.io.tmpdir",
                                                     "someinvaliddir");
                  System.out.println("Default temporary-file directory is "
                                     + defaultTmpDir);
              } catch (SecurityException se) {
                  System.out.println("ERROR: Grant access to set property");
                  return;
              }
              
              try {
                  // try to create temp file
                  System.out.println("Try to create temp file, java.io.tmpdir has "
                                     + "wrong value");
                  File.createTempFile("temp", null);
              } catch (IOException ioe) {
                  System.out.println("IOException thrown, this is correct behaviour");
              }

              System.setProperty("java.io.tmpdir", defaultTmpDir);

              try {
                  // try to create temp file once again, java.io.tmpdir is valid now
                  System.out.println("Try to create temp file, java.io.tmpdir has "
                                     + "default system value");
                  File.createTempFile("temp", null);
              } catch (IOException ioe) {
                  System.out.println("FAIL: IOException thrown");
                  return;
              }

              System.out.println("PASS: temp file created");
          }
      }

      ------------- end of Test.java ----------

      --------------- output ------------------
      <kai@knight(pts/26).5 ~>
      --> java -version
      java version "1.3.0"
      Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0-C)
      Java HotSpot(TM) Client VM (build 1.3.0-C, interpreted mode)
      <kai@knight(pts/26).6 ~>
      --> java Test
      Default temporary-file directory is /var/tmp/
      Try to create temp file, java.io.tmpdir has wrong value
      IOException thrown, this is correct behaviour
      Try to create temp file, java.io.tmpdir has default system value
      FAIL: IOException thrown
      ---------- end of output ----------------


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            Assignee:
            mmcclosksunw Michael Mccloskey (Inactive)
            Reporter:
            kaisunw Kai Kai (Inactive)
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