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- CHANGES
-
- Java(tm) Runtime Environment
- JRE(tm) 1.1.2
-
- -----------------------------------------------------------------------
- CONTENTS
- -----------------------------------------------------------------------
- This document describes the changes made to the JRE between versions
- 1.1.1 and 1.1.2. The contents of this document are as follows:
-
- - End-user installation capability for the Win32 JRE
- - Win32 JRE available with or without internationalization files
- - New jre tool
- - Early-access release of the JRE for Solaris x86
-
- ---------------------------------------------------------
- NOTE: To find the JRE version number, execute:
- jre -version
- ---------------------------------------------------------
-
-
- =======================================================================
- END-USER INSTALLATION CAPABILITY FOR THE Win32 JRE
- -----------------------------------------------------------------------
-
- When the Win32 JRE 1.1.2 is downloaded, an InstallShield script is
- invoked that automates the installation of the JRE. The feature was not
- present in the 1.1.1 version of the JRE. With the InstallShield script,
- JRE 1.1.2 is suitable for installation by end-users. Because of this
- end-user installation capability of the Win 32 JRE 1.1.2, Java
- application developers have the option of not bundling the JRE with
- their software. Instead, they can direct end-users to download and
- install the JRE themselves.
-
- An installer is not available for Solaris versions of the JRE.
- Therefore it is recommended that Solaris application developers write
- their own installers and bundle the JRE and installer with their
- software.
-
-
- =======================================================================
- Win32 JRE AVAILABLE WITH OR WITHOUT INTERNATIONALIZATION FILES
- -----------------------------------------------------------------------
-
- JRE 1.1.2 for Win32 is available for download in two versions, one
- containing internationalization files and the other without. The
- version of the JRE with the internationalization files is more than
- twice the size of the version without the internationalization files.
- The smaller version is made available for those end users who have no
- need for internationalization capability. The files not contained in
- the smaller version of the Win32 JRE are those listed in the OPTIONAL
- FILES section of the JRE README file.
-
- Solaris versions of JRE 1.1.2 include internationalization files.
-
-
- =======================================================================
- NEW jre TOOL
- -----------------------------------------------------------------------
-
- This section provides a summary of the new jre tool for both Win32 and
- Solaris. More detailed documentation for the jre tool can be found on
- the JavaSoft web site.
-
- The jre tool invokes the Java Runtime interpreter for executing Java
- applications. The tool is available in the Win32, Solaris-Sparc, and
- Solaris x86 downloads of JRE 1.1.2. The syntax for the jre command is:
-
- jre [ options ] classname <args>
-
- The classname argument is the name of the class file to be
- executed. Any arguments to be passed to the class must be placed
- after the classname on the command line.
-
- An alternative version of the tool, jrew, is available for Win32. The
- jrew command is identical to jre, except that a console window is not
- invoked. The syntax of the jrew command is
-
- jrew [ options ] classname <args>
-
- Options for the jre and the jrew commands are as follows:
-
- -classpath path Specifies the path that jre uses to
- look up classes. Overrides the default
- classpath.
-
- -cp path Prepends the specified path to the default
- classpath that jre uses to look up classes.
-
-
- -help Print a usage message.
-
- -mx x Sets the maximum size of the memory allocation
- pool (the garbage collected heap) to x. The
- default is 16 megabytes of memory. x must be
- greater than or equal to 1000 bytes.
-
- -ms x Sets the startup size of the memory allocation
- pool (the garbage collected heap) to x. The
- default is 1 megabyte of memory. x must be
- greater than 1000 bytes.
-
- -noasyncgc Turns off asynchronous garbage collection. When
- activated, no garbage collection takes place
- unless it is explicitly called or the program
- runs out of memory.
-
- -noclassgc Turns off garbage collection of Java classes.
- By default, the Java interpreter reclaims space
- for unused Java classes during garbage collection.
-
- -nojit Specifies that any JIT compiler should be ignored.
- The default Java interpreter is invoked.
-
- -ss x The -ss option sets the maximum stack size that
- can be used by C code in a thread to x. The
- default units for x are bytes. The value of x
- must be greater than or equal to 1000 bytes.
-
- -oss x The -oss option sets the maximum stack size that
- can be used by Java code in a thread to x. The
- default units for x are bytes. The value of x
- must be greater than or equal to 1000 bytes.
-
- -v, -verbose Causes jre to print a message to stdout each time
- a class file is loaded.
-
- -verify Performs a partial verification of the class file.
- The -verify option cannot be relied upon to
- certify the class file.
-
- -verifyremote Runs the verifier on all code that is loaded into
- the system via a classloader. verifyremote is the
- default for the interpreter.
-
- -noverify Turns verification off.
-
- -verbosegc Causes the garbage collector to print out messages
- whenever it frees memory.
-
- -DpropName=value Defines a property value. propName is the name of
- the property whose value you want to change and
- value is the value to change it to. For example,
- the command java -Dawt.button.color=green ...
- sets the value of the property awt.button.color
- to "green".
-
-
- =======================================================================
- EARLY-ACCESS RELEASE OF THE JRE FOR SOLARIS x86
- -----------------------------------------------------------------------
-
- An early-access release of JRE 1.1.2 for Solaris x86 is available for
- download. An FCS version of the JRE for Solaris x86 will be made
- available in the future.
-
- BECAUSE THE JRE 1.1.2 FOR SOLARIS x86 IS AN EARLY-ACCESS RELEASE ONLY,
- IT SHOULD NOT BE USED FOR MISSION-CRITICAL APPLICATIONS.
-
- -----------------------------------------------------------------------
- Copyright ⌐ 1997 Sun Microsystems, Inc.
- 2550 Garcia Ave., Mountain View, CA 94043-1100. USA
- All rights reserved.
-
-