Groovy In Action + Listing 12.15 and 12.16

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Groovy In Action + Listing 12.15 and 12.16

by Guillaume Jeudy :: Rate this Message:

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Hi,

I’m trying to run Listing 12.15 and Listing 12.16 from Groovy In Action book with Groovy 1.6.5 and I get an error related to the use of StreamingMarkupBuilder.

Can somebody enlighten me?

This code:

builder.bind {

request { token key; delegate.mkp.yield body }

}

Throws the following exception:

Exception in thread "main" java.lang.NullPointerException: Cannot invoke method call() on null object

at org.codehaus.groovy.runtime.NullObject.invokeMethod(NullObject.java:77)

at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:45)

at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)

at org.codehaus.groovy.runtime.callsite.NullCallSite.call(NullCallSite.java:17)

at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)

at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:117)

at BackPack.invokeMethod(listing1216.groovy:57)

at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeOnDelegationObjects(ClosureMetaClass.java:402)

at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:346)

at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:880)

at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:706)

at groovy.lang.GroovyObjectSupport.invokeMethod(GroovyObjectSupport.java:44)

at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeOnDelegationObjects(ClosureMetaClass.java:402)

at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:346)

at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:880)

at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.callCurrent(PogoMetaClassSite.java:66)

at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:44)

at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:143)

at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:151)

at BackPack$_makeRemoteCall_closure4_closure10.doCall(listing1216.groovy:37)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:86)

at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:234)

at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:272)

at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:880)

at groovy.lang.Closure.call(Closure.java:279)

at groovy.lang.Closure.call(Closure.java:292)

at groovy.xml.streamingmarkupsupport.BaseMarkupBuilder$Document.setProperty(BaseMarkupBuilder.java:172)

at org.codehaus.groovy.runtime.InvokerHelper.setProperty(InvokerHelper.java:177)

at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.setProperty(ScriptBytecodeAdapter.java:483)

at groovy.xml.StreamingMarkupBuilder$_bind_closure7.doCall(StreamingMarkupBuilder.groovy:170)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:86)

at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:234)

at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:272)

at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:880)

at groovy.lang.Closure.call(Closure.java:279)

at groovy.lang.Closure$WritableClosure.writeTo(Closure.java:398)

at org.codehaus.groovy.runtime.InvokerHelper.write(InvokerHelper.java:473)

at org.codehaus.groovy.runtime.DefaultGroovyMethods.leftShift(DefaultGroovyMethods.java:5419)

at org.codehaus.groovy.runtime.dgm$328.invoke(Unknown Source)

at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite$PojoMetaMethodSiteNoUnwrapNoCoerce.invoke(PojoMetaMethodSite.java:270)

at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:52)

at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)

at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:117)

at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)

at BackPack$_makeRemoteCall_closure4.doCall(listing1216.groovy:36)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:86)

at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:234)

at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:272)

at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:880)

at groovy.lang.Closure.call(Closure.java:279)

at groovy.lang.Closure.call(Closure.java:292)

at org.codehaus.groovy.runtime.DefaultGroovyMethods.withWriter(DefaultGroovyMethods.java:10857)

at org.codehaus.groovy.runtime.DefaultGroovyMethods.withWriter(DefaultGroovyMethods.java:11024)

at org.codehaus.groovy.runtime.dgm$666.invoke(Unknown Source)

at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite$PojoMetaMethodSiteNoUnwrapNoCoerce.invoke(PojoMetaMethodSite.java:270)

at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:52)

at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)

at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:117)

at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:129)

at BackPack.makeRemoteCall(listing1216.groovy:35)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:86)

at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:234)

at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:361)

at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:880)

at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.callCurrent(PogoMetaClassSite.java:66)

at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:44)

at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:143)

at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:155)

at BackPack$_closure1.doCall(listing1216.groovy:10)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:86)

at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:234)

at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:272)

at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:880)

at groovy.lang.Closure.call(Closure.java:279)

at groovy.lang.GString.writeTo(GString.java:182)

at groovy.lang.GString.toString(GString.java:160)

at org.codehaus.groovy.runtime.InvokerHelper.format(InvokerHelper.java:541)

at org.codehaus.groovy.runtime.InvokerHelper.toString(InvokerHelper.java:112)

at org.codehaus.groovy.runtime.DefaultGroovyMethods.println(DefaultGroovyMethods.java:556)

at org.codehaus.groovy.runtime.dgm$461.invoke(Unknown Source)

at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoMetaMethodSiteNoUnwrapNoCoerce.invoke(PogoMetaMethodSite.java:307)

at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.callCurrent(PogoMetaMethodSite.java:51)

at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:44)

at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:143)

at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:151)

at BackPack.invokeMethod(listing1216.groovy:56)

at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:45)

at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)

at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:117)

at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:129)

at listing1215.run(listing1215.groovy:3)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:86)

at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:234)

at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1049)

at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:880)

at org.codehaus.groovy.runtime.InvokerHelper.invokePogoMethod(InvokerHelper.java:746)

at org.codehaus.groovy.runtime.InvokerHelper.invokeMethod(InvokerHelper.java:729)

at org.codehaus.groovy.runtime.InvokerHelper.runScript(InvokerHelper.java:384)

at org.codehaus.groovy.runtime.InvokerHelper$runScript.call(Unknown Source)

at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)

at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:117)

at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:129)

at listing1215.main(listing1215.groovy)

Thanks,

Guillaume Jeudy – Java developer
Java and Open Source Application Development – Montreal Solutions Centre
1801, McGill College Avenue, Suite 1100
Montreal, QC, H3A 2N4

gjeudy@...
W: +1-514-840-6329 F: +1-514-840-6241

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