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How To Execute Java Applications; How To Execute .Jar Files; How To Enable The Java Just-In-Time Compiler - Honeywell 1026FF02F9 User Manual

Fixed mount rfid reader if1 series
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How to Execute Java Applications

How to Execute .JAR Files

How to Enable the Java Just-In-Time Compiler

IF1 Fixed RFID Reader User Manual
For more sophisticated Java development, the reader supports the open
standard OSGi service-oriented architecture. This architecture allows
system administrators to install, uninstall, enable, and disable system
services (also known as bundles) without having to reboot the reader
each time. To use OSGi effectively, you need an OSGi server. For more
information, go to www.osgi.org.
To execute a Java application on the reader, use this command:
$JAVA_HOME/bin/java myJAVAClass
To execute .jar files, use this command:
$JAVA_HOME/bin/java myApplication.jar
When you create a .jar file, you need to include manifest files:
The manifest needs to include an attribute called "Main-Class" to
specify the application's entry point (for example, Main-Class:
MyJavaClass).
If the executable .jar needs to reference other .jar files, specify the
files in the manifest file using the "Class-Path" attribute.
To enable the Java just-in-time (JIT) compiler for maximum performance,
use this command:
$JAVA_HOME/bin/java -jit java -jar MyJar.jar
where:
$JAVA_HOME
is an environment variable that indicates the Java
runtime installation path (/usr/java). Always use this variable for simplicity
and to make sure that the correct runtime files are used.
$JAVA
is the name of the Java runtime executable installed in the
reader.
Chapter 3 — Develop and Install RFID Applications
39

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