Exit Print View

Java Platform Micro Edition Software Development Kit Version 3.0

Get PDF Book Print View

Document Information

Getting Started

Java ME Platform SDK Features

Using Sample Projects

Creating and Editing Projects

Viewing and Editing Project Properties

Running Projects in the Emulator

Searching the WURFL Device Database

Finding Files in the Multiple User Environment

Profiling Applications

Monitoring Network Traffic

Lightweight UI Toolkit

Security and MIDlet Signing

BD-J Support

CLDC Emulation on a Windows Mobile Device

Installing CLDC Emulation on a Windows Mobile Emulator

On-device Debugging

Command Line Reference

Launching the SDK

Running the Device Manager

Managing Device Addresses (device-address)

Running the Emulator From the Command Line

MIDlet Options

CDC Options

Debugging and Tracing Options

Building a Project from the Command Line

Checking Prerequisites

Compiling Class Files

Preverifying Class Files

Packaging a MIDLet Suite (JAR and JAD)

Command Line Security Features

Changing the Emulator's Default Protection Domain

Signing MIDlet Suites (jadtool.exe)

Managing Certificates (MEKeyTool)

Generating Stubs (wscompile)

Running the Payment Console From the Command Line

Virtual Machine Memory Profiler (Java Heap Memory Observe Tool)

Running the Java Heap Memory Observe Tool

Viewing the Heap Snapshot

Running WMA Tool








JSR Support

JSR 75: PDA Optional Packages

JSR 82: Bluetooth and OBEX Support

JSR 135: Mobile Media API Support

JSR 172: Web Services Support

JSR 177: Smart Card Security (SATSA)

JSR 179: Location API Support

JSRs 184, 226, and 239: Graphics Capabilities

JSR 205: Wireless Messaging API (WMA) Support

JSR 211: Content Handler API (CHAPI)

JSR 238: Mobile Internationalization API (MIA)

JSR 229: Payment API Support

JSR 256: Mobile Sensor API Support


Running the Java Heap Memory Observe Tool

The Java Heap Memory Observe tool is launched from the command line as follows:

  1. The following command starts the emulator from the \bin directory and opens a sample application:

    emulator.exe -Xdevice:DefaultCldcMsaPhone1 -Xdebug -Xrunjdwp:transport=dt_socket,suspend=n,server=y,address=51307 -Xdescriptor:C:\Java_ME_platform_SDK_3.0\apps\Games\dist\Games.jad -Xdomain:maximum

  2. In a separate command window, start the memory profiler from the \bin directory. The port number must match the address in the Xrunjdwp call:

    memory-profiler.exe -host -port 51307

    The profiler window opens.

  3. Click the Connect button and wait for the profiler to attach to the process. It may take several seconds. After the connection, press Resume.

  4. To take a snapshot of the heap, click the Pause button on the bottom right. The virtual machine is suspended while the profiler collects the snapshot information. The memory panel is then repopulated and the Resume button becomes active.

See Viewing the Heap Snapshot