To build your own localization module, use the german module as template. The locale needs to be available below netbeans-l10n-zip/src/.
src/org/apache/netbeans/l10n from de to your locale (e. g. fr).src/org/apache/netbeans/l10n/Bundle.properties to your locale (e. g. French).manifest.mf changeOpenIDE-Module: org.apache.netbeans.l10n.de to your locale (e. g. org.apache.netbeans.l10n.fr)OpenIDE-Module-Localizing-Bundle: org/apache/netbeans/l10n/de/Bundle.properties to your locale (org/apache/netbeans/l10n/fr/Bundle.properties)build.xml change<project name="org.apache.netbeans.l10n.de" default="netbeans" basedir="."> to your locale<description>Builds, tests, and runs the project org.apache.netbeans.l10n.de.</description> to your locale<property name="locale" value="de"/> to your localenbproject/build-impl.xml<project name="org.apache.netbeans.l10n.de-impl" basedir=".."><code-name-base>org.apache.netbeans.l10n.de</code-name-base>Build l10nantext before building the locale.