Hi Steph,
these steps work fine for me:
1) follow the general instructions to create a buid environment:
http://www.mkgmap.org.uk/dev/index.html
2) modify build.xml, change the line
<exclude name="**/optional/*.java"/>
to
<exclude name="**/dem/optional/*.java"/>
3) change into the directory containing build.xml
3) run the commands
ant resolve-optional
ant dist
to build mkgmap.jar with PrecompSeaGenerator
4) run a command similar to this
java -Xmx6800m -cp .\dist\mkgmap.jar;.\lib\optional\* uk.me.parabola.mkgmap.sea.optional.PrecompSeaGenerator f:\osm\land-polygons-split-4326\land_polygons.shp WGS84 e:\work\sea
Gerd
> Date: Tue, 3 Mar 2015 20:54:22 -0300
> From: st3ph.martin@laposte.net
> To: mkgmap-dev@lists.mkgmap.org.uk
> Subject: [mkgmap-dev] Generate coastlines
>
> Hi,
>
> I tried to generate coastlines according to this :
> http://gis.19327.n5.nabble.com/coastline-td5745923i20.html
>
> At the end, when I ran mkgmap I got an error :
>
> Exception in thread "main" java.lang.NoClassDefFoundError:
> org/opengis/referencing/crs/CoordinateReferenceSystem
> at java.lang.Class.getDeclaredMethods0(Native Method)
> at java.lang.Class.privateGetDeclaredMethods(Class.java:2615)
> at java.lang.Class.getMethod0(Class.java:2856)
> at java.lang.Class.getMethod(Class.java:1668)
> at sun.launcher.LauncherHelper.getMainMethod(LauncherHelper.java:494)
> at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:486)
> Caused by: java.lang.ClassNotFoundException:
> org.opengis.referencing.crs.CoordinateReferenceSystem
> at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
> ... 6 more
>
> My command :
> java -Xms$JXMS -Xmx$JXMX -cp
> "$WORKDIR"/mkgmap/dist/mkgmap.jar:../lib/optional/* \
> uk.me.parabola.mkgmap.sea.optional.PrecompSeaGenerator \
> "$SHAPEDIR"/land_polygons.shp WGS84 sea-"$DATE"
>
> java version "1.7.0_75"
> OpenJDK Runtime Environment (IcedTea 2.5.4) (7u75-2.5.4-1~trusty1)
> OpenJDK 64-Bit Server VM (build 24.75-b04, mixed mode)
>
> Can you see where I failed ?
>
> Steph
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