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  1. JDK
  2. JDK-5077244

Ctor of SerialClob throws SQLException incorrectly

    Details

    • Subcomponent:
    • Resolved In Build:
      b62
    • CPU:
      sparc
    • OS:
      solaris_8

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        Description

        Name: ygR10224 Date: 07/22/2004



          Filed By : SPB JCK team
          JDK : java full version "1.5.0-beta3-b58"
          JCK : 1.5
          Platform[s] : Solaris
          switch/Mode :
          JCK test owner : http://javaweb.eng/jct/sqe/JCK-tck/usr/owners.jto
          Failing Test [s] :
            api/javax_sql/rowset/serial/SerialArray/index.html#Main[SerialArray2003]
           
        api/javax_sql/rowset/serial/SerialArray/serial/index.html#Constructor[serial2003]
           
        api/javax_sql/rowset/serial/SerialClob/serial/index.html#Constructor[serial2001]

          Specification excerpt:
          ======================
          
          --------- J2SE API spec v.1.5 ---------
          ...
          public SerialClob(Clob clob)
                     throws SerialException,
                            SQLException

          Constructs a SerialClob object that is a serialized version of the given Clob
        object.

          The new SerialClob object is initialized with the data from the Clob object;
        therefore,
          the Clob object should have previously brought the SQL CLOB value's data over
        to the client
          from the database. Otherwise, the new SerialClob object object will contain no
        data.

          Note: The Clob object supplied to this constructor cannot return null for
          the Clob.getCharacterStream() and Clob.getAsciiStream methods. This SerialClob
        constructor
          cannot serialize a Clob object in this instance and will throw an SQLException
        object.

          Parameters:
          clob - the Clob object from which this SerialClob object is to be constructed;
        cannot be null
          Throws:
          SerialException - if an error occurs during serialization
          SQLException - if a SQL error occurs in capturing the CLOB; if the Clob object
        is a null; or
          if both the Clob.getCharacterStream() and Clob.getAsciiStream() methods on the
        Clob return a null
          ...
          ---------- end-of-excerpt ---------------


          Problem description
          ===================
          After fix of 5063284 the designated constructor throws java.sql.SQLException
        if ONE
          of clob.getCharacterStream() and clob.getAsciiStream() returns null.
          But the spec says that SQLException should be thrown
          "if both the Clob.getCharacterStream() and Clob.getAsciiStream() methods on
        the Clob return a null".
              ^^^^


          Minimized test:
          ===============
          ------- Test.java --------------
          import javax.sql.rowset.serial.*;
          import java.io.*;
          import java.sql.*;


          class MyClob implements Clob {
              public long length()
                  throws SQLException {
                  return 3;
              }
              public String getSubString(long pos, int length)
                  throws SQLException {
                  return "abd";
              }
              public Reader getCharacterStream()
                  throws SQLException {
                  // Note - if you uncomment next line and comment next after it then
        test passed
                  //return new StringReader("The test string 0123456789");
                  return null;
              }
              public InputStream getAsciiStream()
                  throws SQLException {
                  return new ByteArrayInputStream(new byte[] {'a', 'b', 'c'});
              }
              public long position(String searchstr,
                                   long start)
                  throws SQLException {
                  return 0;
              }
              public long position(Clob searchstr,
                                   long start)
                  throws SQLException {
                  return 0;
              }
              public int setString(long pos,
                                   String str)
                  throws SQLException {
                  return 0;
              }
              public int setString(long pos,
                                   String str,
                                   int offset,
                                   int len)
                  throws SQLException {
                  return 0;
              }
              public OutputStream setAsciiStream(long pos)
                  throws SQLException {
                  return null;
              }
              public Writer setCharacterStream(long pos)
                  throws SQLException {
                  return null;
              }
              public void truncate(long len)
                  throws SQLException {
              }
          }

          public class Test {
              public static void main(String args[]) {
                  try {
                      MyClob myClob = new MyClob();
                      SerialClob sClob = new SerialClob(myClob);
                  } catch (Exception e) {
                      e.printStackTrace();
                  }
              }
          }

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


          Minimized test output:
          ======================
          <gyi@orion> java -showversion Test
          java version "1.5.0-beta3"
          Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta3-b58)
          Java HotSpot(TM) Server VM (build 1.5.0-beta3-b58, mixed mode)

          java.sql.SQLException: Invalid Clob object. Calls to getCharacterStream and
        getAsciiStream return null which cannot be serialized.
                  at javax.sql.rowset.serial.SerialClob.<init>(SerialClob.java:132)
                  at Test.main(Test.java:64)




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                • Assignee:
                  jbrucesunw Jonathan Bruce (Inactive)
                  Reporter:
                  gyisunw Gyi Gyi (Inactive)
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