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Posted to users@groovy.apache.org by David Durham <da...@gmail.com> on 2017/06/15 22:29:08 UTC
FactoryBuilderSupport StackOverflow
Hi all,
I have a class extending FactoryBuilderSupport which registers a
factory for an object that takes no arguments. When used, it will
cause a StackOverflow. Has anyone seen this before and know what the
cause/solution is?
ObjectFactory code:
class DequeueFactory extends AbstractFactory {
public Object newInstance(FactoryBuilderSupport builder, Object
name, Object value, Map attributes)
throws InstantiationException, IllegalAccessException {
def dequeue = new Dequeue()
percl.add(dequeue)
return dequeue
}
@Override
public boolean isLeaf() {
return true
}
@Override
public boolean isHandlesNodeChildren() {
return false
}
}
Example usage:
def script = mybuilder.script {
dequeue()
}
This code will cause the StackOverflowException below.
java.lang.StackOverflowError
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at groovy.lang.Closure.call(Closure.java:416)
at groovy.lang.Closure.call(Closure.java:408)
at groovy.util.FactoryBuilderSupport.dispatchNodeCall(FactoryBuilderSupport.java:889)
at groovy.util.FactoryBuilderSupport.doInvokeMethod(FactoryBuilderSupport.java:781)
at groovy.util.FactoryBuilderSupport.invokeMethod(FactoryBuilderSupport.java:501)
at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:48)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
at com.BuilderTest.dequeue(BuilderTest.groovy:75)
at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:384)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1022)
at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.callCurrent(PogoMetaClassSite.java:69)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:158)
at comBuilderTest$_dequeue_closure7.doCall(BuilderTest.groovy:76)
at com.BuilderTest$_dequeue_closure7.doCall(BuilderTest.groovy)
at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
at
......
Re: FactoryBuilderSupport StackOverflow
Posted by David Durham <da...@gmail.com>.
This is not an issue with FactoryBuilderSupport.
Problem was that my unit test function was also called dequeue.
@Test
void dequeue() {
def script = myBuilder.script {
dequeue()
}
assert '[{"Dequeue"}]' == script.toJson()
}
This isn't an issue for other tests because the arguments didn't
match. Sorry for the noise.
On Thu, Jun 15, 2017 at 5:29 PM, David Durham <da...@gmail.com> wrote:
> Hi all,
>
> I have a class extending FactoryBuilderSupport which registers a
> factory for an object that takes no arguments. When used, it will
> cause a StackOverflow. Has anyone seen this before and know what the
> cause/solution is?
>
> ObjectFactory code:
>
> class DequeueFactory extends AbstractFactory {
>
> public Object newInstance(FactoryBuilderSupport builder, Object
> name, Object value, Map attributes)
> throws InstantiationException, IllegalAccessException {
> def dequeue = new Dequeue()
> percl.add(dequeue)
> return dequeue
> }
>
> @Override
> public boolean isLeaf() {
> return true
> }
>
> @Override
> public boolean isHandlesNodeChildren() {
> return false
> }
>
> }
>
> Example usage:
>
> def script = mybuilder.script {
> dequeue()
> }
>
>
> This code will cause the StackOverflowException below.
>
> java.lang.StackOverflowError
> at java.lang.ClassLoader.defineClass1(Native Method)
> at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
> at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
> at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
> at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> at groovy.lang.Closure.call(Closure.java:416)
> at groovy.lang.Closure.call(Closure.java:408)
> at groovy.util.FactoryBuilderSupport.dispatchNodeCall(FactoryBuilderSupport.java:889)
> at groovy.util.FactoryBuilderSupport.doInvokeMethod(FactoryBuilderSupport.java:781)
> at groovy.util.FactoryBuilderSupport.invokeMethod(FactoryBuilderSupport.java:501)
> at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:48)
> at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
> at com.BuilderTest.dequeue(BuilderTest.groovy:75)
> at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
> at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
> at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:384)
> at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1022)
> at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.callCurrent(PogoMetaClassSite.java:69)
> at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:158)
> at comBuilderTest$_dequeue_closure7.doCall(BuilderTest.groovy:76)
> at com.BuilderTest$_dequeue_closure7.doCall(BuilderTest.groovy)
> at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
> at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
> at
> ......