PM09541: Rational Application Developer v7.5.5 IBM JDK 1.6 SR6 java.util.Scanner.nextLine() requires two 'Enter' keypress initially

Rational Application Developer for WebSphere Software, version 7.5.5.2

APAR status

• Closed as program error.

Error description

• RAD v7.5.5 and WAS v7.0.0.7 IBM JDK 1.6 SR6 java.util.Scanner
  nextLine() is
  incorrect and requires two 'Enter' keypress initially
  
  
  
  The following code would be expected to initialize the 'lname'
  variable  with what is typed in after the prompt for last name.
  The behavior is
  that you have to hit the 'Enter' key twice to get the code to
  accept the entry of the first name so this throws off the second
  call to nextLine().
  
  
  
  import java.util.Scanner;
  public class ScannerTest {
  public static void main(String[] args) {
     Scanner scan = new Scanner(System.in);
     System.out.println('Hello.  Please enter your first name:');
  
     String name = scan.nextLine();
     System.out.println('Hello.  Please enter your last name:');
     String lname = scan.nextLine();
     System.out.println('Hello, ' + name + ' ' + lname);
   }
  }
  
  RESULTS:
  
  
  BAD:
  
  //== RAD7.5 Console: ScannerTest.java using
  
  //-- RAD7.5.5  built in JRE or WAS 7.0.0.7 JRE: IBM JDK 1.6 SR6
  
  Hello. Please enter your first name:
  
  >Firstname
  
  >
  
  Hello. Please enter your last name:
  
  >Lastname
  
  >Hello, Firstname
  
  //==
  
  
  
  Note: '>' implies a new line
  
  
  
  
  
  GOOD:
  
  //== RAD7.5 Console: ScannerTest.java using
  
  //-- WAS 6.1 JRE:IBM JDK 1.5 SR11
  
  Hello. Please enter your first name:
  
  >Firstname
  
  Hello. Please enter your last name:
  
  >Lastname
  
  >Hello, Firstname Lastname
  
  //===
  
  Workaround:
   if Java standalone project - compile with Java 1.5 settings and
  use a WAS 6.1 JRE 1.5 at runtime/build path library
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Fixed in Java 6 SR8 which is now in the current 7.5.5.2
  offering
  

Problem conclusion

• Fixed in Java 6 SR8 which is now in the current 7.5.5.2
  offering
  

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

  RATL APP DEV WI

• Fixed component ID

  5724J1901

Applicable component levels

• R755 PSN

     UP