The above (java full version "1.6.0_65-b14-462") is the latest java release available for Snow Leopard, sorry

[...]
Final mapped jar: work/mapped.8eb82bde.jar does not exist, creating!
Loading mappings
0 packages, 1662 classes, 0 fields, 0 methods
Remapping final jar
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
at org.objectweb.asm.tree.MethodNode.<init>(MethodNode.java:305)
at org.objectweb.asm.tree.MethodNode.<init>(MethodNode.java:265)
at org.objectweb.asm.tree.ClassNode.visitMethod(ClassNode.java:311)
at org.objectweb.asm.ClassReader.readMethod(ClassReader.java:911)
at org.objectweb.asm.ClassReader.accept(ClassReader.java:693)
at org.objectweb.asm.ClassReader.accept(ClassReader.java:506)
at net.md_5.ss.repo.JarRepo.getClass0(JarRepo.java:36)
at net.md_5.ss.repo.ClassRepo.getClass(ClassRepo.java:22)
at net.md_5.ss.repo.JarRepo$1.computeNext(JarRepo.java:69)
at net.md_5.ss.repo.JarRepo$1.computeNext(JarRepo.java:51)
at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)
at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138)
at com.google.common.collect.Iterators$5.hasNext(Iterators.java:547)
at net.md_5.ss.SpecialSource.map(SpecialSource.java:79)
at net.md_5.ss.SpecialSource.main(SpecialSource.java:43)
Exception in thread "main" java.lang.RuntimeException: Error running command, return status !=0: [java, -jar, BuildData/bin/SpecialSource-2.jar, map, -i, work/mapped.8eb82bde.jar-cl, -m, BuildData/mappings/bukkit-1.8-members.csrg, -o, work/mapped.8eb82bde.jar-m]
at org.spigotmc.builder.Builder.runProcess(Builder.java:456)
at org.spigotmc.builder.Builder.main(Builder.java:239)