Bug ID: JDK-6798873 Reduce the number of classes loaded and class dependencies

JDK-6798873 : Reduce the number of classes loaded and class dependencies

Type: Enhancement
Component: other-libs
Sub-Component: other
Affected Version: 7

Priority: P4
Status: Closed
Resolution: Fixed
OS: generic
CPU: generic

Submitted: 2009-01-28
Updated: 2011-05-18
Resolved: 2011-05-18

Versions (Unresolved/Resolved/Fixed)

The Version table provides details related to the release that this issue/RFE will be addressed.

Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.

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JDK 6	JDK 7
6u14Fixed	7 betaFixed

Related Reports

Relates :	JDK-6799689 - Make sun.misc.FloatingDecimal.hexFloatPattern static field initialized lazily
Relates :	JDK-6799230 - Lazily load java.lang.annotation.Annotation class
Relates :	JDK-6819122 - DefaultProxySelector should lazily initialize the Pattern object and the NonProxyInfo objects
Relates :	JDK-6813240 - Remove dead code in sun.misc.FormattedFloatingDecimal class
Relates :	JDK-6825019 - DownloadManager should not be loaded and referenced for full JRE
Relates :	JDK-6793429 - Use compiled properties instead of plain properties for resource file
Relates :	JDK-6801467 - Defer get the launcher resource bundle until it's needed
Relates :	JDK-6808920 - Defer instantiation of Permission objects unless SecurityManager is used
Relates :	JDK-6824169 - Need to remove some AWT class dependencies
Relates :	JDK-2175190 - DefaultProxySelector should lazily initialize the Pattern object and the NonProxyInfo objects
Relates :	JDK-6817246 - Redundant call to set InetAddressCachePolicy to FOREVER if not set during initialization
Relates :	JDK-6818072 - Load Ductus using Class.forName if exist instead of using the service loader
Relates :	JDK-6769976 - (fc) FileChannelImpl.isAMappedBufferField not used
Relates :	JDK-6810254 - Lazily instantiate the shared secret access objects
Relates :	JDK-6819110 - Lazily load Sun digest provider for jar verification

Description

This CR serves as the umbrella CR for the effort in reducing the number of classes loaded and breaking class dependencies.

The number of classes loaded on Windows:
  command-line helloworld         316 (6u12)   332 (JDK 7 b46)
  GUI helloworld with a JFramer  1061 (6u12)  1076 (JDK 7 b46)
  GUI helloworld with a Frame     828 (6u12)   855 (JDK 7 b46)

The number of classes loaded on Solaris sparc:
  command-line helloworld         312 (6u12)   331 (JDK 7 b46)
  GUI helloworld with a JFramer  1139 (6u12)  1158 (JDK 7 b46)
  GUI helloworld with a Frame    1020 (6u12)  1047 (JDK 7 b46)

Comments

EVALUATION Fixes have been integrated in jdk 7 and we close this umbrella CR. See the related CRs for the fixes integrated in jdk7.

23-07-2010

EVALUATION This CR serves as an umbrella CR to capture the fixes for breaking the class dependency.

27-03-2009

EVALUATION Use the lazy initialization idiom and fix this in JDK7

28-01-2009