Mobile Service Architecture (MSA) JSR 248 is a specification that describes an end-to-end wireless environment for Java ME. MSA includes a full set of 16 JSRs and a subset of 8 JSRs:
The MSA Subset includes the following JSRs:
| JSR # | Specification or Technology |
|---|---|
| 75 | PDA Optional Packages for the J2ME Platform |
| 82 | Java APIs for Bluetooth |
| 118 | Mobile Information Device Profile (MIDP) 2.0 for Java ME |
| 135 | Java Mobile Media API (MMAPI) for Java ME |
| 139 | Connected Limited Device Configuration (CLDC) 1.1 for Java ME |
| 184 | Mobile 3D Graphics API for Java ME 1.0 and 1.1 |
| 205 | Wireless Messaging API 2.0 (WMA) 2.0 |
| 226 | Scalable 2D Vector Graphics API for J2ME |
MSA includes the MSA Subset and the following JSRs:
| JSR # | Specification or Technology |
|---|---|
| 172 | Web Services Specification for Java ME |
| 177 | Security and Trust Services API for J2ME (SATSA) |
| 179 | Location API 1.0 for Java ME |
| 180 | Session Initiation Protocol (SIP) API for Java ME |
| 211 | Content Handler API (CHAPI) |
| 229 | Payment |
| 234 | Advanced Multimedia Supplements API for Java ME |
| 238 | Internationalization |
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A Java virtual machine (JVM) is a virtual machine that enables a computer to run Java programs as well as programs written in other languages that are also compiled to Java bytecode. The JVM is detailed by a specification that formally describes what is required in a JVM implementation. Having a specification ensures interoperability of Java programs across different implementations so that program authors using the Java Development Kit (JDK) need not worry about idiosyncrasies of the underlying hardware platform.
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Mobile Information Device Profile (MIDP) is a specification published for the use of Java on embedded devices such as mobile phones and PDAs. MIDP is part of the Java Platform, Micro Edition framework and sits on top of Connected Limited Device Configuration (CLDC), a set of lower level programming interfaces. MIDP was developed under the Java Community Process. The first MIDP devices were launched in April 2001.
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