CSS 2005: Tigers and Mustangs and Dolphins, Oh My ...softwaresummit.com › 2005 › speakers › ReinholdTigers... · Mark Reinhold – Tigersand Mustangs and Dolphins, Oh My! Page

Mark Reinhold – Tigers and Mustangs and Dolphins, Oh My! Page 1

Colorado Software Summit: October 23 – 28, 2005 © Copyright 2005, Sun Microsystems, Inc.

Mark Reinhold <[email protected]>

Java™ SE Chief EngineerSun Microsystems

Tigers and Mustangs andDolphins, Oh My!



TigerRoadmap

Release ModelMustangDolphin

Contents



TigerJMX

Concurrency utilities

Generics

Ocean L&F

extended for loop

JVM Monitoring

metadata

SAX 2.0

Enumerated types

printf

importing constants

Autoboxing

Unicode Surrogates

Remote JMX

DOM 3

Gnome Skins

XML Schema

JVMPI Profiling

Stack trace API

JVM sharing

XAWT

AMD64

performance

faster startup

improved footprint

BigDecimal updates

JDBC Rowsets

SASL

New Memory ModelPacked JARs

performance ergonomics

jpsjstat

varargs

aptfatal error handlers

jconsole

OpenGL

synth L&F

improved cookie support

RMI dynamic proxies

z-ordering

swing printingOCSPXDnD

IP reachability

unsynchronized StringBuffer

scanning



Over

113,871,645downloads served!

Tiger Adoption



When Will 5.1 Ship?



5.1�5.0 update 5 shipped 2005/9/15

http://java.sun.com/j2se/5.0

When Will 5.1 Ship?



1.4.0 Merlin 2002/2/131.4.1 Hopper 2002/10/161.4.2 Mantis 2003/5/291.5.0 Tiger 2004/9/301.6.0 Mustang 2006/Q31.7.0 Dolphin 2008/Q1

Roadmap




5.1?5.2?

Roadmap




32months

24

18

5.1?5.2?

Roadmap



Release Model



Feature releases 24–36 months... 1.3, 1.4, 5.0, ...

Release Model



Feature releases 24–36 months

Maintenance releases 9–12... 1.3.1, 1.4.1, 1.4.2

Release Model



Feature releases 24–36 months

Maintenance releases 9–12

Update releases 3–4... 1.4.2_06, 5.0u4, ...

Release Model



Release Model

Old New

Feature releases 24–36 18–24 months

Maintenance releases 9–12 (none)

Update releases 3–4 2–3



Why?– Faster, more responsive platform evolution

– Critical fixes delivered, and adopted, more rapidly

– Releases more likely to ship on time

Effective as of J2SE 5.0 “Tiger”

Release Model

Old New

Feature releases 24–36 18–24 months

Maintenance releases 9–12 (none)

Update releases 3–4 2–3



MustangCompiler API

Annotation processors

JVM & CLR Co-Existence

Native L&F Fidelity

Longhorn Look & FeelSplit Verifier

Web Services StackJDBC 4.0 JavaDoc Tags

Scripting Languages

Core JVM

performance

Windows system tray

Attach on

demand

LCD fonts

chmod

Free disk space

Passwordprompting

JavaScript engine

FireFox support

Improved OOM diagnosability

Parallel old-space GC

JVM DTrace

More GC Ergonomics

Pluggable Locales

Improved text renderingXAWT

Docs inChinese

JTable upgrades

JConsole upgradesParallelize Concurrent GC

Faster JNI

Splashscreens

More gfx acceleration

More desktop

integration

Unicode Normalizer

SwingWorker

Services

XML digital signatures

HTTP cookie manager

JAXB 2.0

MBeans

metadata



Name That Mustang...



Java SE 6.0Java 2




Java SE 6.0




Java SE 6.0

Name That Mustang!



Mustang Themes

Compatibility, Stability, & Quality!

Diagnosability, Monitoring, & Management

XML & Web Services

Ease of Development

Enterprise Desktop

Transparency



Compiler API

Annotation processors

JVM & CLR Co-Existence

Native L&F Fidelity

Longhorn Look & FeelSplit Verifier

Web Services StackJDBC 4.0 JavaDoc Tags

Scripting Languages

Core JVM

performance

Windows system tray

Attach on

demand

LCD fonts

chmod

Free disk space

Passwordprompting

JavaScript engine

FireFox support

Improved OOM diagnosability

Parallel old-space GC

JVM DTrace

More GC Ergonomics

Pluggable Locales

Improved text renderingXAWT

Docs inChinese

JTable upgrades

JConsole upgradesParallelize Concurrent GC

Faster JNI

Splashscreens

More gfx acceleration

More desktop

integration

Unicode Normalizer

SwingWorker

Services

XML digital signatures

HTTP cookie manager

JAXB 2.0

MBeans

metadata



JSR 270: Java SE 6JSR 270: Release Contents

ApacheBEADavid BockCapgeminiGoogleHPIBMIkayzoIntel

JBossDoug LeaMetasolvOracleSam PullaraSAPSAS InstituteMichael SantosThoughtWorks

Expert Group Members



Mustang Component JSRs

202: Class File Update

199: Compiler API269: Annotation Processors260: Javadoc Tag Update221: JDBC 4.0223: Scripting

105: XML Digital Signature173: Streaming API for XML222: JAXB 2.0

250: Common Annotations181: WS Metadata224: JAX-WS 2.0















Ease of Development








Ease of Development

XML








Ease of Development

XML

Web Services




Primary change: Split verification– Adopted from J2ME™ platform

– Verifier checks compiler-generated assertionsinstead of generating and checking assertions itself

Why?– Simplicity

– Performance

– Sharing code between ME & SE




199: Compiler API

import javax.tools.*;

JavaCompilerTool jc= ToolProvider.defaultJavaCompiler();

JavaFileManager fm = jc.getStandardFileManager();jc.setOutputDirectory(new File("classes"));jc.setSourcePath(Arrays.asList(new File("src"),

new File("gen")));jc.setExtendedOption("-Xlint:all");JavaCompilerTool.CompilationTask ct

= jc.run(null,fm.getFileForInput("Test.java"));

for (DiagnosticMessage dm : ct.getDiagnostics())out.println(dm);

Mustang Component JSRs: Ease of Development



269: Annotation Processors

@interface ToDo {String value();

}





@interface ToDo {String value();

}

@ToDo("Should be package-private")public class CountingStream

extends InputStream{

@ToDo("Check EOF logic!")public int read() throws IOException {

...}

}





% javac -processor ToDoProcessor Foo.javaread() @ToDo(value=Check EOF logic!)CountingStream @ToDo(value=Should be package-private)%





public class ToDoProcessorimplements AnnotationProcessor

{

...

public void process() {AnnotationTypeDeclaration toDoDecl

= atds.iterator().next();for (Declaration decl

: env.getDeclarationsAnnotatedWith(toDoDecl)) {System.out.format("%-16s %s%n",

decl.toString(),decl.getAnnotation(ToDo.class));

}}

}




260: Javadoc Tag Update

Properties

Label The string label of the button. (getLabel, setLabel)

ActionCommand The command name of the action event fired by thisbutton. (getActionCommand, setActionCommand)




260: Javadoc Tag Update

Method summaryEvents and related methods

ActionEvent A semantic event indicating that acomponent-defined action occurred.

void addActionListener(ActionListener l)Adds the specified action listener to receive actionevents from this button.

void removeActionListener(ActionListener l)Removes the specified action listener so that it nolonger receives action events from this button.

ActionListener[] getActionListeners()Returns an array of all the action listenersregistered on this button.

protected void processActionEvent(ActionEvent e)Processes action events occurring on this button.




221: JDBC 4.0

private Connection connect(String user, String passwd)throws SQLException

{String url = "jdbc:mysql://javadb.sfbay/jplan";String driver = "com.mysql.jdbc.Driver";try {

Class.forName(driver);return DriverManager.getConnection(url,

user,passwd);

} catch (ClassNotFoundException x) {throw new SQLException("Can't load driver", x);

}}




221: JDBC 4.0

private Connection connect(String user, String passwd)throws SQLException

{String url = "jdbc:mysql://javadb.sfbay/jplan";String driver = "com.mysql.jdbc.Driver";try {

Class.forName(driver);return DriverManager.getConnection(url,

user,passwd);

} catch (ClassNotFoundException x) {throw new SQLException("Can't load driver", x);

}}




221: JDBC 4.0

java.sql.SQLXML




223: Scripting

import javax.script.*;

// Get the built-in JavaScript engineScriptEngineManager sem = new ScriptEngineManager();ScriptEngine se = sem.getEngineByExtension("js");

se.eval("print('Hello, world!')");




173: Streaming API for XML

<favorites-list><favorites>

<who>Laurie</who><color>9a661b</color>

</favorites><favorites>

<who>Brian</who><color>43b120</color>


<who>Clara</who><color>888314</color>


<who>Jeff</who><color>61f8ba</color>

</favorites></favorites-list>

Mustang Component JSRs: XML




SAXParserFactory spf = SAXParserFactory.newInstance();SAXParser sp = spf.newSAXParser();final int[] s = new int[1];final int[] n = new int[1];sp.parse(in, new DefaultHandler() {

private boolean inColor = false;StringBuilder color = new StringBuilder();public void startElement(String uri, String ln,

String qn, Attributes as){ inColor = qn.equals("color"); }public void endElement(String uri, String ln, String qn){

if (qn.equals("color")) {s[0] += Integer.parseInt(color.toString(), 16);n[0]++;color.setLength(0);inColor = false;

}}public void characters(char[] ch, int start, int len){ if (inColor) color.append(ch, start, len); }

});return s[0] / n[0];





XMLInputFactory xif = XMLInputFactory.newInstance();XMLStreamReader xr = xif.createXMLStreamReader(in);int s = 0;int n = 0;while (xr.hasNext()) {

if (xr.nextTag() == START_ELEMENT) {String ln = xr.getLocalName();if (ln.equals("who")) {

xr.getElementText();} else if (ln.equals("color")) {

s += Integer.parseInt(xr.getElementText(), 16);n++;

}} else if (xr.getLocalName().equals("favorites-list")) {

break;}

}return s / n;




222: JAXB 2.0

<favorites-list><favorites>

<who>Laurie</who><color>9a661b</color>


<who>Brian</who><color>43b120</color>


<who>Clara</who><color>888314</color>


<who>Jeff</who><color>61f8ba</color>

</favorites></favorites-list>




222: JAXB 2.0

public class Favorites {

private String who;public String getWho() { return who; }public void setWho(String w) { who = w; }

private String color;public String getColor() { return color; }public void setColor(String c) { color = c; }

}




222: JAXB 2.0

import javax.xml.bind.annotation.*;

@XmlTypepublic class Favorites {

private String who;public String getWho() { return who; }public void setWho(String w) { who = w; }

private String color;public String getColor() { return color; }public void setColor(String c) { color = c; }

}




224: JAX-WS 2.0 (& 181 & 250)

public class ColorGenerator {

public int generate(String name) {return name.hashCode() & 0xffffff;

}

}

Mustang Component JSRs: Web Services



224: JAX-WS 2.0 (& 181 & 250)

import javax.jws.*;

@WebServicepublic class ColorGenerator {

public int generate(String name) {return name.hashCode() & 0xffffff;

}

}




224: JAX-WS 2.0 (& 181 & 250)

import javax.xml.ws.*;import java.rmi.RemoteException;

public static int myFavoriteColor()throws WebServiceException, RemoteException

{ServiceFactory serviceFactory

= ServiceFactory.newInstance();ColorGeneratorService service

= (ColorGeneratorService)serviceFactory.loadService(ColorGeneratorService.class);

ColorGenerator cg = service.getColorGeneratorPort();return cg.generate(System.getProperty("user.name"));

}




@SuppressWarnings

static void createAndShowGUI() {JFrame.setDefaultLookAndFeelDecorated(true);JFrame f = new JFrame("HelloWorldSwing");f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);JLabel label = new JLabel("Hello World");f.getContentPane().add(label);f.pack();f.setVisible(true);

}



@SuppressWarnings

static void createAndShowGUI() {JFrame.setDefaultLookAndFeelDecorated(true);JFrame f = new JFrame("HelloWorldSwing");f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);JLabel label = new JLabel("Hello World");f.getContentPane().add(label);f.pack();f.show();

}



@SuppressWarnings

static void createAndShowGUI() {JFrame.setDefaultLookAndFeelDecorated(true);JFrame f = new JFrame("HelloWorldSwing");f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);JLabel label = new JLabel("Hello World");f.getContentPane().add(label);f.pack();f.show();

}

% javac X.javaNote: X.java uses or overrides a deprecated API.Note: Recompile with -Xlint:deprecation for details.%



@SuppressWarnings

@SuppressWarnings("deprecation")static void createAndShowGUI() {

JFrame.setDefaultLookAndFeelDecorated(true);JFrame f = new JFrame("HelloWorldSwing");f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);JLabel label = new JLabel("Hello World");f.getContentPane().add(label);f.pack();f.show();

}

% javac X.java%



@SuppressWarnings

@SuppressWarnings("deprecation")static void createAndShowGUI() {

JFrame.setDefaultLookAndFeelDecorated(true);JFrame f = new JFrame("HelloWorldSwing");f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);JLabel label = new JLabel("Hello World");f.getContentPane().add(label);f.pack();f.show();

}

% javac X.java%

�� 43votes



Free Disk Space

void safeCopy(File src, File dstDir)throws IOException

{if (src.length() > dstDir.getUsableSpace())

throw new IOException("Insufficient space");doCopy(src,

new File(dstDir.getParent(),src.getName()));

}

�� 697votes



Free Disk Space

void df(File dir) {out.format("Total MB Used Free Use%%%n");long t = dir.getTotalSpace();long f = dir.getFreeSpace();out.format(" %6d %6d %6d %2d%%%n",

t >> 20,(t - f) >> 20,f >> 20,((t - f) * 100) / t);

}

% java DF /aTotal MB Used Free Use%

32766 28632 4134 87%%

�� 697votes



java.io.Console

package java.io;

class Consoleimplements Flushable

{String readLine();char[] readPassword(); // No echo!

}

�� 425votes



java.io.Console

package java.io;


{String readLine();char[] readPassword();Console format(String fmt, Object... args);

}

�� 425votes



java.io.Console

package java.io;


{String readLine();char[] readPassword();Console format(String fmt, Object... args);String readLine(String fmt, Object... args);char[] readPassword(String fmt, Object... args);

}

�� 425votes



java.io.Console

package java.io;


{String readLine();char[] readPassword();Console format(String fmt, Object... args);String readLine(String fmt, Object... args);char[] readPassword(String fmt, Object... args);void flush();PrintWriter writer();Reader reader();

}

�� 425votes



Password Prompting

import javax.security.auth.callback.*;

class ConsoleCallbackHandlerimplements CallbackHandler

{public void handle(Callback[] callbacks) {

Console cn = System.console();for (Callback cb : callbacks) {

if (cb instanceof NameCallback) {String nm = cn.readLine("Username: "));((NameCallback)cb).setName(nm);

} else if (cb instanceof PasswordCallback) {char[] pw = cn.readPassword("Password: "));((PasswordCallback)cb).setPassword(pw);Arrays.fill(pw, '\0');

}}

}}

�� 425votes



Class-Path Wildcards

% javac -cp .:./jaxb/lib/jaxb-api.jar\:./jaxb/lib/jaxb-impl.jar\:./jaxb/lib/jsr173_1.0_api.jar\:./jaxb/lib/activation.jar \Sum.java



Class-Path Wildcards

% javac -cp .:./jaxb/lib/jaxb-api.jar\:./jaxb/lib/jaxb-impl.jar\:./jaxb/lib/jsr173_1.0_api.jar\:./jaxb/lib/activation.jar \Sum.java

% javac -cp '.:./jaxb/lib/*' Sum.java



JConsole improvements

Reworked UI

Attach-on-Demand

Deadlock detector



DTrace

libc.so.1`_read+0x8libX11.so.4`_XRead+0x38libXt.so.4`XtCreateWidget+0xbclibmawt.so`Java_sun_awt_motif_MToolkit_loadSystemColors+0x184sun/awt/motif/MToolkit.loadSystemColorsjava/awt/SystemColor.updateSystemColorsjava/awt/SystemColor.<clinit>StubRoutines (1)libjvm.so`__1cJJavaCallsLcall_helper6FpnJJavaValue_pnMmethodHandle_pnRJa...libjvm.so`jni_FindClass+0x5c8StubRoutines (1)libmawt.so`Java_sun_awt_motif_MComponentPeer_pSetBackground+0x98sun/awt/motif/MComponentPeer.pSetBackgroundsun/awt/motif/MPanelPeer.setBackgroundsun/awt/motif/MComponentPeer.initializesun/awt/motif/MComponentPeer.initsun/awt/motif/MWindowPeer.initsun/awt/motif/MFramePeer.<init>sun/awt/motif/MToolkit.createFramejava/awt/Frame.addNotifyjava/awt/Window.packSwingSet2.createSplashScreenSwingSet2.<init>SwingSet2.main



DTrace

hotspot$target:::gc-begin {self->ts = vtimestamp;

}

hotspot$target:::gc-finish/self->ts/ {@ = quantize(vtimestamp - self->ts);self->ts = 0;

}

value ------------- Distribution ------------- count16777216 | 033554432 |@@ 167108864 |@@@@@@ 3

134217728 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ 16268435456 | 0



Out-of-Memory Handling

public class Chew {

static void chew() {List<Object> ls = new ArrayList<Object>();for (;;)

ls.add(new byte[1 << 20]);}

public static void main(String[] args) {chew();

}

}




public class Chew {




}

}

% java ChewException java.lang.OutOfMemoryError: Java heap space%




public class Chew {




}

}

% java ChewException java.lang.OutOfMemoryError: Java heap space

at Chew.chew(Chew.java:7)at Chew.main(Chew.java:11)

%



java.awt.Desktop

import java.awt.Desktop;

void launchBrowser(URI u) {Desktop dt = Desktop.getDesktop();dt.browse(u);

}

�� 138votes



java.awt.{SystemTray,TrayIcon}



Anti-Aliased LCD Text�� 378

votes



20x20 translucent bilinear xform

20x20 opaque drawImage

16 ch antialiased drawString

250x250 antialiased fillOval

20x20 translucent fillRect

250x250 opaque drawLine

0 100000 200000 300000 400000 500000

Java SE 6 (X11)

J2SE 5.0 (OGL)

Java SE 6 (OGL)

pixels/sec (higher is better)

OpenGL Pipeline Improvements

Sun W2100z, Solaris 10, NVidia Quadro FX 1100



Baseline/gap API: Matisse



No More Scary Security Dialog!



JRockit

5.0_02 / Suse

Linux

IBM 1.4.2

SR1 / Suse

Linux

Sun J2SE

5.0u2 / Suse

Linux

Sun J2SE

5.0u2 /

Solaris 10

Sun J2SE

5.0u5 /

Solaris 10

Sun Java SE

6 / Solaris 10

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

110%

120%

130%

NormalizedtoJ2SE5.0

64-bit SPECjbb2000

4-CPU 2.4 GHz Sun Fire V40z



JRockit 5.0_02 / SuseLinux

Sun J2SE 5.0u2 /Solaris 10

Sun J2SE 5.0u5 /Solaris 10

Sun Java SE 6 /Solaris 10

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

110%

120%

130%

140%

150%

NormalizedtoJ2SE5.0u2

32-bit SPECjbb2005

4-CPU 2.4 GHz Sun Fire V40z



There’s a lot more...

Just because a featureisn’t mentioned here

doesn’t mean it’snot important!

http://mustang.dev.java.net


Mark Reinhold — Tigers and Mustangs and Dolphins, Oh My! Page 87



Contributions Integrated

4491255: PrintWriter.clearError() to reset internal error state David Tribble

4806463: Self-closing tags incorrectly parsed by Ryan Ackley

javax.swing.text.html.parser.Parser5025230: Creating thread local variables from within Thomas Hawtin

ThreadLocal.initialValue()

5073365: java.lang.Thread.SetPriority() throws Rémi ForaxNullPointerException if a thread has exited

6182942: JButton.isEnabled() return false when button is enabled Anonymous

6197726: IdentityHashMap.entrySet().toArray(T[] a) incorrect Rémi Forax6205522: Javadoc warnings for GregorianCalendar Alexis Ruyant

6207243: Clean up non-varargs warnings during j2se build Andy Tripp

6232484: ArrayList made from IdentityHashMap.entrySet() Rémi Foraxfails to create properly

6248507: AbstractStringBuilder.replace does not handle Nelson Dcosta

count < start < end6257449: Concurrency bug in com.sun.media.sound.UlawCodec Jesse Stir

6261423: Dropouts in audio recordings Klaus Jänsch

6272233: JPanel not popping up menu set in setComponentPopup Anonymous6298794: Construction performance of user-created AWT Thomas Hawtin

components has become very slow

6298940: AbstractButton.setModel doesn't fully update mnemonic Thomas Hawtin

THANKS!



Contributions In Process

4094886: Need a load(Reader)/store(Writer) interface for Properties class

4238932: A JTextField in gridBagLayout does not properly set MinimumSize

4263142: Point2D.Double and Point2D.Float should be Serializable

4306897: Add java.util.Arrays.binarySearch(a, key, fromIndex, toIndex)

4322996: Add BasicComboBoxEditor constructor that accepts a JTextField

4346256: Provide an AbstractTreeModel for the TreeModel hierarchy

4511638: Double.toString(double) sometimes produces incorrect results

4679743: Additional Compressed Streams Requested

4726458: Dialogs and Frames are never garbage collected

4741757: LTP: XMLEncoder ignores persistence delegates when used

with Java Web Start

4854174: FileSystemView.getSystemIcon throws NPE for bad soft links

4854950: JFrame's decorated root pane doesn't like MouseListeners

4890726: Linux version of JDK doesn't support uk_UA.KOI8-U locale

4941777: Deprecate Boolean constructor

4974934: Wait unprotected from spurious wakeups in EventQueue.invokeAndWait

4993740: Scanner should implement Iterable<String>

5005831: String constructors and method which take Charset rather than String

5015163: String merge/join facility that would be the inverse of java.lang.String.split()



More Contributions In Process

5041975: Please retrofit varargs onto java.lang.reflect.Array.newInstance

5084229: NamingEnumeration should be closed when parent DirContext is closed

6176992: Add support to java.lang.Class for wrapper type conversions

6246565: File descriptor leak when using DatagramChannel.socket()

6254531: ThreadLocal leak when value references ThreadLocal

6261423: Dropouts in audio recordings

6284152: Lookbehinds with internal quantifiers are unreliable

6303905: Current MD5 implementation is the bottleneck of my application

6305029: Identity Transform does not demand namespace-prefixes

6306820: Extend Java's 'URL parameters' manipulation capabilites

6307385: Locale performance and correctness fixes

6307387: Add String.endsWithIgnoreCase(String suffix)

6314708: File should provide methods to access created and last-access times

6314710: java.security.MessageDigestSpi: Re-use byte[] for better performance

6315064: String.equals ignores pre-calulated hash codes

6328849: Make it easier to customize the Swing action framework

6335626: Swing Tutorial should use MVC

6339846: HotSpot build failures on AMD64 Fedora Core 4



More Contributions In Process

5041975: Please retrofit varargs onto java.lang.reflect.Array.newInstance

5084229: NamingEnumeration should be closed when parent DirContext is closed

6176992: Add support to java.lang.Class for wrapper type conversions

6246565: File descriptor leak when using DatagramChannel.socket()

6254531: ThreadLocal leak when value references ThreadLocal

6261423: Dropouts in audio recordings

6284152: Lookbehinds with internal quantifiers are unreliable

6303905: Current MD5 implementation is the bottleneck of my application

6305029: Identity Transform does not demand namespace-prefixes

6306820: Extend Java's 'URL parameters' manipulation capabilites

6307385: Locale performance and correctness fixes

6307387: Add String.endsWithIgnoreCase(String suffix)

6314708: File should provide methods to access created and last-access times

6314710: java.security.MessageDigestSpi: Re-use byte[] for better performance

6315064: String.equals ignores pre-calulated hash codes

6328849: Make it easier to customize the Swing action framework

6335626: Swing Tutorial should use MVC

6339846: HotSpot build failures on AMD64 Fedora Core 4

XXXXXX:YOUR FAVORITE BUG OR RFE HERE



DolphinLanguage-level XML

Modules

Friends invokedynamic bytecode

Performance

Tiered Compilation

Class-data sharing for applications

Class-loader based application isolation

Tracing

Resolution-Independent Graphics

Filesystem API

Asynchronous I/O

Web Services for JMX

Client Ergonomics

Docking

HTML 4.0

Method References

BeanShell



Modules

JAR files haven’t scaled well– Sharing

– Isolation

– Versioning

– Native code

– Composition

– Dependencies

JSR 277 will try to address these problems



void addReviewer(Element feature,String user, String time)

{// DOMDocument doc = feature.getOwnerDocument();Element review = doc.createElement("reviewed");Element who = doc.createElement("who");who.setTextContent(user);review.appendChild(who);Element when = doc.createElement("when");when.setTextContent(time);review.appendChild(when);feature.appendChild(review);

}

Language-Level XML



void addReviewer(Element feature,String user, String time)

{feature.add(<reviewed><who>{ user }</who>

<when>{ time }</when></reviewed>);

}

Language-Level XML



You Can Participate!

http://mustang.dev.java.net

Review JSRs in progress– Submit comments to Expert Groups

Download Mustang builds– Do the new APIs meet your needs?

– Do your existing applications still work?

Collaborate on the Mustang code itself!



Thank you!

Mark Reinhold<[email protected]>

Questions?

Documents

CSS 2005: Tigers and Mustangs and Dolphins, Oh My ...softwaresummit.com › 2005 › speakers › ReinholdTigers... · Mark Reinhold – Tigersand Mustangs and Dolphins, Oh My! Page