JMRI: Java Version-Specific Features

This page contains information about the compatibility and features of various Java versions. We use this information to decide on our road map for future JMRI versions.

Capabilities

This section lists new Java capabilities, and which Java version they first appeared in. The "JDK" column shows the first Java Development Kit that could compile the featuer; the "JRE" column lists the first runtime environment that could run the feature, including the needed JVM and library support.

Feature	JDK	JRE
Collections	1.3	1.3
Java2D	1.3	1.3
Printing update	1.3	1.3
JUnit 3.8	1.3	1.3
JDOM 1.0	1.4	1.3
Java regexp	1.4	1.4
Java3D	1.4	1.4
JavaHelp update	1.4	1.4
Drag and Drop	1.4 (additional improvements in 1.6)	1.4, 1.6
Logging API	1.4 (additional improvements in 1.6)	1.4, 1.6
XML catalog resolver	1.3?	1.4?
Annotations	1.5	1.3
JavaMail	1.5	1.3
JUnit 4.0	1.5	1.3
SwingWorker	1.5	1.5 (*1.4)
JSpinner	1.5	1.5
Enums	1.5	1.5
printf, Formatter	1.5	1.5
generics	1.5	1.5

(* indicates that a compatibility library is used in the early version)

JRE availability

This section lists the most recent Java Runtime version available for various operating system versions. Please note that not all users of that operating system will have updated to this Java version; many will be using an older one.

OS and platform	Last JRE
Windows Vista	1.6
Windows XP	1.6
MacOS X 10.3 and later	1.5
Linux	1.5
Windows 98 (2nd Ed)	1.5-11
Windows 98	1.4.2_14
Windows 95	1.3.1_20
OS/2	1.3
MacOS "Classic"	1.1.8

See the Sun Java site for additional information.