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Summary  |  Proposal  |  Detail (Summary & Proposal)
JSRs: Java Specification Requests
JSR 59: J2SETM Merlin Release Contents

Stage Access Start Finish
Maintenance Draft Review 5 Download page 17 Aug, 2004 20 Sep, 2004
Maintenance Draft Review 4 Download page 25 Jun, 2004 26 Jul, 2004
Maintenance Draft Review 3 Download page 12 Mar, 2004 12 Apr, 2004
Maintenance Draft Review 2 Download page 30 Jul, 2002 03 Sep, 2002
Maintenance Draft Review Download page 20 Jun, 2002 22 Jul, 2002
Final Release Download page 09 May, 2002  
Final Approval Ballot View results 04 Dec, 2001 17 Dec, 2001
Proposed Final Draft 2 Download page 27 Jul, 2001  
Proposed Final Draft Download page 05 Apr, 2001  
Public Review Download page 25 Jun, 2000 25 Jul, 2000
Participant Review Login page 15 Apr, 2000 15 May, 2000
CAFE   19 Feb, 2000 14 Mar, 2000
JSR Approval   12 Feb, 2000 18 Feb, 2000
Status: Maintenance
JCP version in use: 2.1
Java Specification Participation Agreement version in use: 1.0

Define the major features of the J2SETM "Merlin" release (J2SE 1.4).

Please direct comments on this JSR to the Spec Lead(s)

Specification Leads
Star Spec Lead Danny Coward Oracle
Expert Group
  Borland Software Corporation Fujitsu Limited Hewlett-Packard
  IBM Oracle SAS Institute Inc.
  Sun Microsystems, Inc. Symbian Ltd

Updates to the Original JSR

The following information has been updated from the original proposal.

Oracle took over as Maintenance Lead from Sun Microsystems.

Maintenance Lead: Oracle America, Inc.

Contact: Danny Coward

E-mail address:

Telephone: +1 408 276 7049

Original Java Specification Request (JSR)

Identification | Request | Contributions

Section 1. Identification

Submitting Participant: Sun Microsystems, Inc.

Name of Contact Person: Graham Hamilton

E-Mail Address:

Telephone Number: +1 408 863 3000

It is expected the expert group will include experts from:

  • OS platform vendors
  • tool vendors
  • application vendors
  • enterprise customers
  • end developers

Section 2: Request

2.1 Please describe the proposed Specification:

This JSR is to develop a specification for the feature and API set for the next update release of Java 2 Standard Edition, code named "Merlin", targeted to ship in 2001. Merlin is one of a series of update releases to J2SE. The intention is to ship update releases on a regular 12-18 month cycle, with each update release including a combination of quality improvements and a small amount of new features.

This JSR will not itself define any new APIs, rather it will enumerate APIs defined in other JSRs or through the JCP maintenance process.

It is expected that most of the effort in the Merlin release will be around product quality (bug fixing) and product performance with only a relatively small amount of new features and new APIs.

The JSR expert group will define a specification consisting of a target feature and API set for Merlin. This target list will be further refined during participant review and public review and will become the target feature set for the Merlin release. The goal is that the Merlin release will include this full target set, but depending on implementation and API design schedules some items may be deferred to a later release if they are unable to make the release schedule for Merlin. The final specification will reflect the final Merlin deliverables.

2.2 What is the target Java platform? (i.e., desktop, server, personal, embedded, card, etc.)

This specification defines the next release of the J2SE Platform.

2.3 What need of the Java community will be addressed by the proposed specification?

It is anticipated that the Merlin release will be mainly targeted at the following major themes:

  • Reliability
  • Serviceability
  • Scalability
  • Performance
  • Deployment

The Merlin release will be fully compatible with earlier J2SE releases.

Section 3: Contributions

Various existing JSR API initiatives will be evaluated as potential candidates for Merlin. Amongst the possible candidates for evaluation are: