5.4.1 MIDP Development Environment
MIDP applications can be developed on all major platforms, but
for the sake of simplicity we only provide instructions for Windows. If
possible, install all components into the directories suggested here, then you
will not need to edit the paths in the MetaEdit+ generators that output build
scripts.
The required components for trying out Watch applications
in MIDP are:
 | Java
SE Development Kit for compiling the example. For more information about its
version and installation, please refer the Preface
section. |
| Oracle
Java ME SDK for additional libraries and emulator support (available from http://www.oracle.com/technetwork/java/javame/javamobile/download/sdk).
The latest SDK version at the time of writing was 3.4 — the example code
generator has been tested to work with this version. We recommend the
installation with default options. If you want to install Java ME SDK somewhere
else than in its default directory, you have to edit the value of variable
$MIDP in the ‘__Paths’
generator. |
The Java ME SDK comes with a MIDP
device emulator that is suitable for our purposes, but if you want to use better
looking emulators with more bells and whistles, you could download the Nokia SDK
2.0 for Java from
http://developer.nokia.com/resources/downloads. If you
install the SDK into the proposed default directory, you can skip straight to
Section
5.4.2. Otherwise you need to
change the value of the
$S40SDK
variable in the ‘__Paths’ generator to point to the correct
directory, and probably edit also the execution command sequence for the Nokia
emulator in ‘_create make for MIDP’ generator.
 | Please
note that there is a known incompatibility issue between Nokia SDK 2.0 and more
recent Java SDKs, causing the execution of Nokia Phone Emulator to fail with an
error message “The Internal RMI Registry port 1099 may be in use by
another application”. At the time of writing, the only known resolution
for this problem is to downgrade the Java SDK to version 7 update
17. |
If you want to integrate the MIDP
generation with Eclipse, download and install the Eclipse Mobile Tools for Java
add-on from
http://download.eclipse.org/mtj/updates/1.1.2/stable. The
integration has been tested with version 1.1.2. Please note that after the MIDP
code has been generated, loaded into Eclipse and compiled, you still have to
start its execution manually.
