Gremline 1.3-SNAPSHOT Exception

Exception in thread "main" java.lang.NoClassDefFoundError: [Lcom/tinkerpop/pipes/PipeClosure;
	at java.lang.Class.getDeclaredMethods0(Native Method)
	at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)
	at java.lang.Class.getDeclaredMethods(Class.java:1791)
	at org.codehaus.groovy.reflection.CachedClass$3$1.run(CachedClass.java:84)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.codehaus.groovy.reflection.CachedClass$3.initValue(CachedClass.java:81)
	at org.codehaus.groovy.reflection.CachedClass$3.initValue(CachedClass.java:79)
	at org.codehaus.groovy.util.LazyReference.getLocked(LazyReference.java:46)
	at org.codehaus.groovy.util.LazyReference.get(LazyReference.java:33)
	at org.codehaus.groovy.reflection.CachedClass.getMethods(CachedClass.java:250)
	at groovy.lang.MetaClassImpl.populateMethods(MetaClassImpl.java:340)
	at groovy.lang.MetaClassImpl.fillMethodIndex(MetaClassImpl.java:290)
	at groovy.lang.MetaClassImpl.initialize(MetaClassImpl.java:2915)
	at org.codehaus.groovy.reflection.ClassInfo.getMetaClassUnderLock(ClassInfo.java:166)
	at org.codehaus.groovy.reflection.ClassInfo.getMetaClass(ClassInfo.java:182)
	at org.codehaus.groovy.runtime.metaclass.MetaClassRegistryImpl.getMetaClass(MetaClassRegistryImpl.java:242)
	at org.codehaus.groovy.runtime.InvokerHelper.getMetaClass(InvokerHelper.java:751)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.createCallStaticSite(CallSiteArray.java:59)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.createCallSite(CallSiteArray.java:146)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:42)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
	at com.tinkerpop.gremlin.loaders.ObjectLoader.load(ObjectLoader.groovy:15)
	at com.tinkerpop.gremlin.loaders.ObjectLoader$load.call(Unknown Source)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:42)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:112)
	at com.tinkerpop.gremlin.Gremlin.load(Gremlin.groovy:28)
	at com.tinkerpop.gremlin.jsr223.GremlinScriptEngine.<init>(GremlinScriptEngine.java:23)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
	at org.codehaus.groovy.reflection.CachedConstructor.invoke(CachedConstructor.java:77)
	at org.codehaus.groovy.runtime.callsite.ConstructorSite$ConstructorSiteNoUnwrapNoCoerce.callConstructor(ConstructorSite.java:102)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallConstructor(CallSiteArray.java:54)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:182)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:186)
	at com.tinkerpop.gremlin.Gremlin.<clinit>(Gremlin.groovy:25)
	at com.tinkerpop.gremlin.jsr223.GremlinScriptEngine.<init>(GremlinScriptEngine.java:23)
	at com.tinkerpop.gremlin.jsr223.GremlinScriptEngineFactory.getScriptEngine(GremlinScriptEngineFactory.java:83)
	at javax.script.ScriptEngineManager.getEngineByName(ScriptEngineManager.java:225)
	... 3 more
Caused by: java.lang.ClassNotFoundException: com.tinkerpop.pipes.PipeClosure
	at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
	... 45 more