With javax.activation.jar added to the classpath the build now fails due to the removal of JAXB:
[javac] import javax.xml.bind.JAXBContext; [javac] ^ [javac] /build/scilab-6.0.1/modules/xcos/src/java/org/scilab/modules/xcos/palette/PaletteManager.java:27: error: package javax.xml.bind does not exist [javac] import javax.xml.bind.JAXBException; [javac] ^ [javac] /build/scilab-6.0.1/modules/xcos/src/java/org/scilab/modules/xcos/palette/PaletteManager.java:28: error: package javax.xml.bind does not exist [javac] import javax.xml.bind.Marshaller; [javac] ^ So a new dependency on libjaxb-java is also needed.