Dockerfile: increase Xmx of java tools

src/.docker_modules/gatk/3.8.0/Dockerfile

@@ -5,3 +5,4 @@ ENV GATK_VERSION=3.8.0
 
 RUN echo "#\!/bin/sh\njava -jar /usr/GenomeAnalysisTK.jar \$@" > /bin/gatk3 
 RUN chmod +x /bin/gatk3
+RUN sed -i 's/java/java -Xmx40g/g' /bin/gatk3

src/.docker_modules/picard/2.18.11/PicardCommandLine

@@ -12,4 +12,4 @@ PicardCommandLine)
         ;;
 esac
 
-exec java -Xmx12g ${JAVA_OPTIONS-} -jar /usr/share/java/picard.jar "$@"
+exec java -Xmx40g ${JAVA_OPTIONS-} -jar /usr/share/java/picard.jar "$@"