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Implement these as appropriate for your platform. What is shown here is Linux Bash syntax. MS-Windows users will use the environment variables setting dialog available in the control panel.

Code Block
export JAVA_OPTS=" -Xmx10GXmx5G -Xms2m -Dfile.encoding=UTF8"
export JAVA_TOOLS_OPTS="-Dfile.encoding=UTF8"
export LANG=en_US.UTF8

The -Xms2m increases the stack size - the scala compiler is highly recursive and uses deeper stacks than conventional Java programs generally use.

The -Xmx10G Xmx5G allows the JVM to use as much as 10 Gig of RAM - adjust this depending on your RAM size. 5Gig is probably minimum (as of release 2.0.0 of Daffodil)

The JAVA_OPTS, SBT_OPTS, and DAFFODIL_JAVA_OPTS respectively set these flags for the java command, the sbt command, and the daffodil command (aka daffodil CLI).

For LANG, adjust the en_US part to your locale, the important part is the ".UTF8". (TBD: This env-var may not be needed at all)

The file.encoding definition is needed on MS Windows. Not required on Linux.

On MS-Windows it may be necessary to add the java JDK "bin" directory to the PATH. Find where the Java JDK is installed (usually under C:\Program Files\Java\jdk...\bin), and put the bin directory on PATH.