Merge branch 'java-rte2' into 'master'

add java runtime engine to vesta developer image

See merge request !8

classes/relative_symlinks.bbclass

+# This class recipe is a hack added to work around the fact that 
+# Poky's morty release is missing a few components needed
+# to build the meta-java layer.  The components in question are present
+# in the Poky tip-of-tree, so if the vesta project eventually switches
+# to a later version of Poky, this file may no longer be needed.
+
+do_install[postfuncs] += "install_relative_symlinks"
+
+python install_relative_symlinks () {
+    def replace_absolute_symlinks(basedir, d):
+        """
+        Walk basedir looking for absolute symlinks and replacing them with relative ones.
+        The absolute links are assumed to be relative to basedir
+        (compared to make_relative_symlink above which tries to compute common ancestors
+        using pattern matching instead)
+        """
+        for walkroot, dirs, files in os.walk(basedir):
+            for file in files + dirs:
+                path = os.path.join(walkroot, file)
+                if not os.path.islink(path):
+                    continue
+                link = os.readlink(path)
+                if not os.path.isabs(link):
+                    continue
+                walkdir = os.path.dirname(path.rpartition(basedir)[2])
+                base = os.path.relpath(link, walkdir)
+                bb.debug(2, "Replacing absolute path %s with relative path %s" % (link, base))
+                os.remove(path)
+                os.symlink(base, path)
+
+    replace_absolute_symlinks(d.getVar('D',False), d)
+}

conf/machine/include/meta-java.inc

+# Possible provider: cacao-initial-native and jamvm-initial-native
+PREFERRED_PROVIDER_virtual/java-initial-native = "cacao-initial-native"
+
+# Possible provider: cacao-native and jamvm-native
+PREFERRED_PROVIDER_virtual/java-native = "jamvm-native"
+
+# Optional since there is only one provider for now
+PREFERRED_PROVIDER_virtual/javac-native = "ecj-bootstrap-native"
+

conf/machine/vesta-100.conf

@@ -6,6 +6,7 @@
 
 include conf/machine/include/imx-base.inc
 include conf/machine/include/tune-cortexa7.inc
+include conf/machine/include/meta-java.inc
 
 MACHINE_FEATURES += " pci bluetooth"
 

conf/machine/vesta-200.conf

@@ -6,6 +6,7 @@
 
 include conf/machine/include/imx-base.inc
 include conf/machine/include/tune-cortexa7.inc
+include conf/machine/include/meta-java.inc
 
 MACHINE_FEATURES += " pci wifi bluetooth"
 

conf/machine/vesta-300.conf

@@ -6,6 +6,7 @@
 
 include conf/machine/include/imx-base.inc
 include conf/machine/include/tune-cortexa7.inc
+include conf/machine/include/meta-java.inc
 
 MACHINE_FEATURES += " pci wifi bluetooth"
 

recipes-vesta/images/vesta-image-developer.bb

@@ -13,6 +13,7 @@ IMAGE_INSTALL_append += " \
     mtd-utils-ubifs \
     nodejs \
     nodejs-npm \
+    openjre-8 \
     packagegroup-core-buildessential \
     python \
     python-dev \