IV84130: BIGDECIMAL.STRIPTRAILINGZEROS() DOESN'T RETURN BIGDECIMAL.ZERO WHEN IT IS NUMERICALLY EQUAL TO ZERO

APAR status

• Closed as program error.

Error description

• Error Message: Below standalone testcase can recreate the issue.
  import java.math.BigDecimal;
  public class BigDecimalTest {
  public static void main(String<OSB><CSB> args) {
    BigDecimal zero = new BigDecimal("0.0000000000000000");
    System.out.println("BD1 = "+zero.stripTrailingZeros());
    System.out.println("BD1 = "+BigDecimal.ZERO);
    if( zero.stripTrailingZeros().equals(BigDecimal.ZERO) )
        System.out.println("Test Passed");
    else
        System.out.println("Test failed");
    }
  }
  Output:
  BD1 = 0E-16
  BD1 = 0
  Test failed
  .
  Stack Trace: N/A
  .
  N/A
  

Local fix

• N/A
  

Problem summary

• When the BigDecimal is "0.0000000000000000",
  BigDecimal.stripTrailingZeros() simply returns its original
  value. However the expected return value is BigDecimal.ZERO.
  Refer to Oracle's implementation, it also returns
  BigDecimal.ZERO.
  

Problem conclusion

• If this BigDecimal is numerically equal to zero, then
  BigDecimal.ZERO is returned.
  .
  This APAR will be fixed in the following Java Releases:
     8    SR3       (8.0.3.0)
     7.1  SR4  FP45 (7.1.4.45)
     7.0  SR10 FP45 (7.0.10.45)
  .
  Contact your IBM Product's Service Team for these Service
  Refreshes and Fix Packs.
  For those running stand-alone, information about the available
  Service Refreshes and Fix Packs can be found at:
             https://www.ibm.com/developerworks/java/jdk/
  

Temporary fix

• N/A
  

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

  JAVA CLASS LIBS

• Fixed component ID

  620700130

Applicable component levels

• R800 PSY

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