Version 1.9.5.4 (30-Sep-2024)
Bugfix
- The built-in Eclipse Compiler for Java (ECJ) could not be found.
robocode.sh
script for Linux and macOS due to
this error:
java.lang.UnsupportedOperationException: The Security Manager is deprecated and will be removed in a future release
I have spent some time of my summer vacation to write a tutorial named Getting Started, if you are new to Robocode Tank Royale.
In addition, I wrote a tutorial named Beyond the Basics, which any Robocoder should read to advance his/her skills for making more advanced robots. This tutorial is written for the Tank Royale version, but applies the original version of Robocode as well.
Happy Robocoding! ❤️
Throwable: java.lang.LinkageError: loader constraint violation: when resolving method
issue in the
RobotClassLoader
.ClassCastException
with URLClassLoader
when accessing ClassLoader.getSystemClassLoader()
on Java version newer
than Java 8 and running with -DNOSECURITY=true
._JAVA_OPTIONS
is now set automatically regardless of the Java
version.Please note that you should be aware of which version of Java you are using for running Robocode. Otherwise, Robocode might not start.
You can check this by running this command in a terminal: java -version
. If you are running on a Java version older than version 12, you need to uncomment or remove this line in the robocode.bat
or robocode.sh
file:
_JAVA_OPTIONS="-Djava.security.manager=allow"
If you are running on Java 12 or newer, then the above line is required, and should not be removed!
_JAVA_OPTIONS="-Djava.security.manager=allow"
if you run on Robocode on a Java version older
than version 12, and you can disable Direct3D on Windows, and also set the rasterizer used in Direct3D. Have a look at
robocode.bat
and robocode.sh
if you want to see the details.sun.java2d
programmatically anymore as these give different results on different
hardware (obviously). So the user needs to set these explicitly as options when starting up Robocode. Go to
this page if you want to experiment withNOSECURITY=true
could cause a ClassNotFoundException
for the robots.sun.java2d.ddoffscreen=false
. Hence, this setting has been removed.NOSECURITY
or EXPERIMENTAL
property has been set to true, a warning is now printed out to standard out.