Marcin Zajaczkowski created GROOVY-10312:
--------------------------------------------
Summary: MissingMethodException in method with default parameter
in trait - regression in 3.0.9
Key: GROOVY-10312
URL: https://issues.apache.org/jira/browse/GROOVY-10312
Project: Groovy
Issue Type: Improvement
Affects Versions: 3.0.9
Reporter: Marcin Zajaczkowski
After switch from 3.0.8 to 3.0.9 Groovy throws at runtime
MissingMethodException for static method in a trait called from another trait,
but only if a given method has default parameter.
A stripped down code to reproduce problem:
{code:java}
class StaticStaticInTraitProblem implements TLevel1 {
static void main(String[] args) {
staticMethodWithDefaultParameter()
}
}
trait TLevel1 extends TLevel2 {
static void staticMethodWithDefaultParameter(String params = "") {
//default param is required to make it fail at runtime
static2() //fails with MissingMethodException: No signature of method:
static foobar.TLevel1.static2() is applicable ...
}
}
trait TLevel2 {
static void static2() {}
}{code}
A stacktrace:
{code:java}
Exception in thread "main" groovy.lang.MissingMethodException: No signature of
method: static foobar.TLevel1.static2() is applicable for argument types: ()
values: []
Possible solutions: wait(), wait(long), split(groovy.lang.Closure), wait(long,
int), notify(), stream()
at
groovy.lang.MetaClassImpl.invokeStaticMissingMethod(MetaClassImpl.java:1584)
at groovy.lang.MetaClassImpl.invokeStaticMethod(MetaClassImpl.java:1570)
at
org.codehaus.groovy.runtime.InvokerHelper.invokeMethod(InvokerHelper.java:1003)
at
org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodN(ScriptBytecodeAdapter.java:180)
at
foobar.TLevel1$Trait$Helper.$static_methodMissing(StaticStaticInTraitProblem2Spec.groovy)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:567)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:107)
at
groovy.lang.MetaClassImpl.invokeStaticMissingMethod(MetaClassImpl.java:1582)
at groovy.lang.MetaClassImpl.invokeStaticMethod(MetaClassImpl.java:1570)
at
org.codehaus.groovy.runtime.callsite.StaticMetaClassSite.call(StaticMetaClassSite.java:50)
at
org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
at
org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
at
org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:130)
at
foobar.TLevel1$Trait$Helper.staticMethodWithDefaultParameter(StaticStaticInTraitProblem2Spec.groovy:11)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:567)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:107)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:323)
at
org.codehaus.groovy.runtime.callsite.StaticMetaMethodSite.invoke(StaticMetaMethodSite.java:44)
at
org.codehaus.groovy.runtime.callsite.StaticMetaMethodSite.callStatic(StaticMetaMethodSite.java:100)
at
org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallStatic(CallSiteArray.java:55)
at
org.codehaus.groovy.runtime.callsite.AbstractCallSite.callStatic(AbstractCallSite.java:217)
at
org.codehaus.groovy.runtime.callsite.AbstractCallSite.callStatic(AbstractCallSite.java:240)
at
foobar.TLevel1$Trait$Helper.staticMethodWithDefaultParameter(StaticStaticInTraitProblem2Spec.groovy)
at
foobar.TLevel1$Trait$Helper$staticMethodWithDefaultParameter.call(Unknown
Source)
at
org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
at
org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
at
org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:139)
at
foobar.StaticStaticInTraitProblem2Spec.staticMethodWithDefaultParameter(StaticStaticInTraitProblem2Spec.groovy)
at
foobar.StaticStaticInTraitProblem2Spec.main(StaticStaticInTraitProblem2Spec.groovy:5)
{code}
Trying to minimize the original case, I reach similar error also with the other
construction:
{code:java}
class StaticInTraitProblem implements StaticTrait {
static void main(String[] args) {
staticMethodWithDefaultParameter()
}
}
trait StaticTrait {
public static final String CONSTANT = ""
static void staticMethodWithDefaultParameter(String params = "") {
//default param is required to make it fail at runtime
CONSTANT //Fails with: MissingMethodException: No signature of method:
static foobar.StaticTrait.foobar_StaticTrait__CONSTANT$get() is applicable for
argument types: () values: []
}
} {code}
It worked fine with 3.0.8.
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