The Sony Ericsson Java Platform is an open-source development platform that allows developers to create applications for Sony Ericsson phones. It's based on the Java ME platform, which is a subset of the Java Standard Edition.
The platform includes a Java Runtime Environment (JRE) that provides a set of libraries and tools for developing Java ME applications. This JRE is designed to work with the Sony Ericsson phones' hardware and software.
Developers can use the Sony Ericsson Java Platform to create a wide range of applications, from simple games to complex business applications.
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Features and Support
The Sony Ericsson Java Platform offers a range of features that make it a powerful tool for developers.
One of the key features is its support for multiple device profiles, allowing developers to create applications that can run on a variety of Sony Ericsson devices.
Developers can use the platform's APIs to create applications that can interact with the phone's hardware and software components.
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The platform also provides a range of tools and libraries to help developers build, test, and debug their applications.
With the Sony Ericsson Java Platform, developers can create applications that take advantage of the phone's camera, GPS, and other features.
The platform's support for Java ME (Micro Edition) makes it easy for developers to create applications that can run on a wide range of devices.
Developers can also use the platform's built-in support for J2ME (Java 2 Platform, Micro Edition) to create applications that can run on older devices.
Development and Resources
The Sony Ericsson Java Platform has a robust documentation system in place, which is available both offline and online. The offline documentation is located in the docs directory of the installation directory.
You can access the online documentation through the Sony Ericsson Developer World website at http://developer.sonyericsson.com. This is a great resource for developers looking for user guides, FAQs, and continuously updated content.
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The FAQ section is a good starting point for the online documentation, and it can be found at https://developer.sonyericsson.com/docs/DOC-2314. The online documentation is a valuable resource for developers working on the Sony Ericsson Java Platform.
The Sony Ericsson Java Platform has undergone several updates, with notable releases including Version 2.5.0.3, Version 2.2.2, Version 2.2.1, and Version 2.2.0.
Launch and Issues
The Sony Ericsson Java Platform has a few known issues that you should be aware of. The Connection Proxy requires a working Internet or LAN connection on your computer to successfully connect to a phone, and it can take a very long time to complete if there are no active network interfaces with working IP configuration.
Certain firewalls may interfere with the configuration of a connected device, so be sure to consult your firewall documentation for details on how to configure it. The default Windows Firewall is configured during installation, but other firewalls may require manual configuration.
Here are some specific known issues with the Sony Ericsson SDK 2.5.0.3:
- In order for the Connection Proxy to successfully connect to a phone, you must have a working Internet or LAN connection on your computer.
- Certain firewalls may interfere with the configuration of a connected device.
- The Resource Monitor is a very low priority task on the phone, and may not receive any resource monitor events if you are running MIDlets that consume much CPU.
- Profiling MIDlets may fail if you include too many methods in the profiling session.
- For Windows Vista, the deviceDiscovery.method setting in sdkme.properties must be changed to ping, and you will then need to restart the SEMC SDK Service and the Connection Proxy.
Sony Ericsson Launches Apps
Sony Ericsson has announced two new services, including the expansion of its PlayNow arena mobile content service to carry applications. The service will now offer a wider range of content, including music, movies, ringtones, games, themes, and wallpapers.
PlayNow will be available in 13 countries, with plans to expand to further markets and models throughout the year. The service will be compatible with 38 Sony Ericsson phone models.
Developers can submit applications to PlayNow starting July 1, with no fees for submission. The initial submission process will be open for Java ME and Symbian OS applications, with expansion to additional platforms later in the year.
Sony Ericsson is collaborating with GetJar to provide one-click access to GetJar's selection of applications from PlayNow arena. This will make it easier for developers to reach consumers and for consumers to access a wide range of applications.
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Sony Ericsson sees the entry-level 3G segment as a future growth area and is adding the mobile Java platform to its devices in this segment. This move is aimed at encouraging developers to create richer user experiences for customers.
The Java platform has been praised by Sony Ericsson as one of the most robust and flexible environments in the industry, enabling the evolution of its Walkman and Cyber-shot phones.
Known Issues
When working with the Sony Ericsson SDK, you may encounter some known issues.
A working Internet or LAN connection on your computer is required for the Connection Proxy to successfully connect to a phone.
Certain firewalls may interfere with the configuration of a connected device, requiring manual configuration as specified in your firewall documentation.
The Resource Monitor is a low-priority task on the phone, which means you may not receive any resource monitor events if you're running MIDlets that consume a lot of CPU.
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Here are some specific issues you might encounter:
- In order for the Connection Proxy to successfully connect to a phone, you must have a working Internet or LAN connection on your computer.
- Certain firewalls may interfere with the configuration of a connected device, requiring manual configuration.
- The Resource Monitor is a low-priority task on the phone, which may not receive any resource monitor events if you're running MIDlets that consume a lot of CPU.
- Profiling MIDlets may fail if you include too many methods in the profiling session, or if you need to increase the tool.timeout setting in sdkme.properties.
- For Windows Vista, the deviceDiscovery.method setting in sdkme.properties must be changed to ping, requiring a restart of the SEMC SDK Service and the Connection Proxy.
Frequently Asked Questions
Why did Sony Ericsson fail?
Sony Ericsson's failure was largely due to a lack of a clear product strategy, leading to a confusing lineup of diverse models. This ultimately hindered the brand's ability to establish a strong identity in the market.
What is Java Platform Micro Edition?
Java Platform Micro Edition (J2ME) is a subset of Java designed for small computing devices like mobile phones and embedded systems. It provides a runtime environment and standard APIs for developing applications on these devices.
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