getProperty() function reports exception when a property of a node is not existing.

getProperty() function reports exception when a property of a node is not existing.
Following if the log list of this error

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root cause

java.lang.ClassNotFoundException: org.alfresco.web.scripts.WebScriptException
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1358)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1204)
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
java.lang.Class.forName0(Native Method)
java.lang.Class.forName(Class.java:242)
java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:585)
java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1544)
java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1466)
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1699)
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
java.io.ObjectInputStream.readObject(ObjectInputStream.java:348)
com.rivetlogic.core.cma.rest.impl.RestExecuterImpl.deserializeObject(RestExecuterImpl.java:608)
com.rivetlogic.core.cma.rest.impl.RestExecuterImpl.processResponse(RestExecuterImpl.java:372)
com.rivetlogic.core.cma.rest.impl.RestExecuterImpl.processResponse(RestExecuterImpl.java:311)
com.rivetlogic.core.cma.rest.impl.RestExecuterImpl.execute(RestExecuterImpl.java:129)
com.rivetlogic.core.cma.rest.impl.RestExecuterImpl.execute(RestExecuterImpl.java:111)
com.rivetlogic.core.cma.impl.NodeServiceImpl.execute(NodeServiceImpl.java:1561)

//this is where this problem starts
com.rivetlogic.core.cma.impl.NodeServiceImpl.getProperty(NodeServiceImpl.java:337)


com.rivetlogic.hbsp.dewey.listeners.AvailabilityListenerAction.getAvailTitleOverride(AvailabilityListenerAction.java:729)
sun.reflect.GeneratedMethodAccessor9015.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:585)
org.jboss.seam.util.Reflections.invoke(Reflections.java:21)
org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:31)
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:46)
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:42)
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
org.jboss.seam.core.SynchronizationInterceptor.aroundInvoke(SynchronizationInterceptor.java:32)
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107)
org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:166)
org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:102)
com.rivetlogic.hbsp.dewey.listeners.AvailabilityListenerAction_$$_javassist_6.getAvailTitleOverride(AvailabilityListenerAction_$$_javassist_6.java)
sun.reflect.GeneratedMethodAccessor9014.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:585)
javax.el.BeanELResolver.getValue(BeanELResolver.java:62)
javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53)
com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:64)
org.jboss.el.parser.AstPropertySuffix.getValue(AstPropertySuffix.java:53)
org.jboss.el.parser.AstValue.getValue(AstValue.java:67)
org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:71)
javax.faces.component.UIOutput.getValue(UIOutput.java:173)
com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:189)
com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:320)
com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:200)