[
https://issues.apache.org/jira/browse/GROOVY-7750?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jochen Theodorou updated GROOVY-7750:
-------------------------------------
Description:
Given this code:
{code:java}
@Lazy
Foo foo
abstract class Foo {}
{code}
You'll get:
{code}
java.lang.InstantiationException
at
sun.reflect.InstantiationExceptionConstructorAccessorImpl.newInstance(InstantiationExceptionConstructorAccessorImpl.java:48)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at
org.codehaus.groovy.reflection.CachedConstructor.invoke(CachedConstructor.java:80)
at
org.codehaus.groovy.runtime.callsite.ConstructorSite$ConstructorSiteNoUnwrapNoCoerce.callConstructor(ConstructorSite.java:105)
at
org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallConstructor(CallSiteArray.java:60)
at
org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:235)
at
org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:239)
{code}
This isn't really helpful. If I mistype a method name, Groovy will help me out
with suggestions, why not here?
MODIFICATION by blackdrag:
@Lazy should recognize this and fail compilation to avoid the initialization of
an abstract class.
was:
Given this code:
{code:java}
@Lazy
Foo foo
abstract class Foo {}
{code}
You'll get:
{code}
java.lang.InstantiationException
at
sun.reflect.InstantiationExceptionConstructorAccessorImpl.newInstance(InstantiationExceptionConstructorAccessorImpl.java:48)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at
org.codehaus.groovy.reflection.CachedConstructor.invoke(CachedConstructor.java:80)
at
org.codehaus.groovy.runtime.callsite.ConstructorSite$ConstructorSiteNoUnwrapNoCoerce.callConstructor(ConstructorSite.java:105)
at
org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallConstructor(CallSiteArray.java:60)
at
org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:235)
at
org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:239)
{code}
This isn't really helpful. If I mistype a method name, Groovy will help me out
with suggestions, why not here?
> @Lazy allows instantiation of abstract class
> --------------------------------------------
>
> Key: GROOVY-7750
> URL: https://issues.apache.org/jira/browse/GROOVY-7750
> Project: Groovy
> Issue Type: Bug
> Components: groovy-runtime
> Affects Versions: 2.4.4
> Reporter: Johann
> Priority: Minor
> Labels: usability
>
> Given this code:
> {code:java}
> @Lazy
> Foo foo
> abstract class Foo {}
> {code}
> You'll get:
> {code}
> java.lang.InstantiationException
> at
> sun.reflect.InstantiationExceptionConstructorAccessorImpl.newInstance(InstantiationExceptionConstructorAccessorImpl.java:48)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
> at
> org.codehaus.groovy.reflection.CachedConstructor.invoke(CachedConstructor.java:80)
> at
> org.codehaus.groovy.runtime.callsite.ConstructorSite$ConstructorSiteNoUnwrapNoCoerce.callConstructor(ConstructorSite.java:105)
> at
> org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallConstructor(CallSiteArray.java:60)
> at
> org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:235)
> at
> org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:239)
> {code}
> This isn't really helpful. If I mistype a method name, Groovy will help me
> out with suggestions, why not here?
> MODIFICATION by blackdrag:
> @Lazy should recognize this and fail compilation to avoid the initialization
> of an abstract class.
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