Michael Vorburger created KARAF-5086:
----------------------------------------
Summary: Java 8 default methods cause IncompatibleClassChangeError
in blueprint
Key: KARAF-5086
URL: https://issues.apache.org/jira/browse/KARAF-5086
Project: Karaf
Issue Type: Bug
Affects Versions: 4.0.7
Reporter: Michael Vorburger
Priority: Critical
I have an interface with a default method and an implementation of that is
exposed as an OSGi service via Aries Blueprint, and when the default method is
called, it's causing this error: {code}IncompatibleClassChangeError: Found
interface org.opendaylight.infrautils.caches.CacheProvider, but class was
expected. at Proxy*.newCache(){code}
The code looks something like this:
{code}public interface CacheProvider {
<K,V> Cache<K,V> newCache(CacheConfig<K,V> cacheConfig, CachePolicy
initialPolicy);
default <K,V> Cache<K,V> newCache(CacheConfig<K,V> cacheConfig) {
return newCache(cacheConfig, new CachePolicyBuilder().build());
}
{code}
And here's the full stack trace:
{code}opendaylight-user@root>diag
caches-sample (57)
------------------
Status: Failure
Blueprint
9/4/17 5:35 AM
Exception:
org.osgi.service.blueprint.container.ComponentDefinitionException: Error when
instantiating bean sampleServiceWithCachingImpl of class
org.opendaylight.infrautils.caches.sample.SampleServiceWithCachingImpl
org.osgi.service.blueprint.container.ComponentDefinitionException:
org.osgi.service.blueprint.container.ComponentDefinitionException: Error when
instantiating bean sampleServiceWithCachingImpl of class
org.opendaylight.infrautils.caches.sample.SampleServiceWithCachingImpl
at
org.apache.aries.blueprint.container.ServiceRecipe.createService(ServiceRecipe.java:310)
at
org.apache.aries.blueprint.container.ServiceRecipe.internalGetService(ServiceRecipe.java:252)
at
org.apache.aries.blueprint.container.ServiceRecipe.internalCreate(ServiceRecipe.java:149)
at
org.apache.aries.blueprint.di.AbstractRecipe$1.call(AbstractRecipe.java:79)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
org.apache.aries.blueprint.di.AbstractRecipe.create(AbstractRecipe.java:88)
at
org.apache.aries.blueprint.container.BlueprintRepository.createInstances(BlueprintRepository.java:255)
at
org.apache.aries.blueprint.container.BlueprintRepository.createAll(BlueprintRepository.java:186)
at
org.apache.aries.blueprint.container.BlueprintContainerImpl.instantiateEagerComponents(BlueprintContainerImpl.java:724)
at
org.apache.aries.blueprint.container.BlueprintContainerImpl.doRun(BlueprintContainerImpl.java:411)
at
org.apache.aries.blueprint.container.BlueprintContainerImpl.run(BlueprintContainerImpl.java:276)
at
org.apache.aries.blueprint.container.BlueprintExtender.createContainer(BlueprintExtender.java:300)
at
org.apache.aries.blueprint.container.BlueprintExtender.createContainer(BlueprintExtender.java:269)
at
org.apache.aries.blueprint.container.BlueprintExtender.createContainer(BlueprintExtender.java:265)
at
org.apache.aries.blueprint.container.BlueprintExtender.modifiedBundle(BlueprintExtender.java:255)
at
org.apache.aries.util.tracker.hook.BundleHookBundleTracker$Tracked.customizerModified(BundleHookBundleTracker.java:500)
at
org.apache.aries.util.tracker.hook.BundleHookBundleTracker$Tracked.customizerModified(BundleHookBundleTracker.java:433)
at
org.apache.aries.util.tracker.hook.BundleHookBundleTracker$AbstractTracked.track(BundleHookBundleTracker.java:725)
at
org.apache.aries.util.tracker.hook.BundleHookBundleTracker$Tracked.bundleChanged(BundleHookBundleTracker.java:463)
at
org.apache.aries.util.tracker.hook.BundleHookBundleTracker$BundleEventHook.event(BundleHookBundleTracker.java:422)
at
org.eclipse.osgi.internal.framework.EquinoxEventPublisher$2.call(EquinoxEventPublisher.java:189)
at
org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.notifyHookPrivileged(ServiceRegistry.java:1280)
at
org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.notifyHooksPrivileged(ServiceRegistry.java:1263)
at
org.eclipse.osgi.internal.framework.EquinoxEventPublisher.notifyEventHooksPrivileged(EquinoxEventPublisher.java:186)
at
org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEventPrivileged(EquinoxEventPublisher.java:146)
at
org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:75)
at
org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:67)
at
org.eclipse.osgi.internal.framework.EquinoxContainerAdaptor.publishModuleEvent(EquinoxContainerAdaptor.java:102)
at org.eclipse.osgi.container.Module.publishEvent(Module.java:466)
at org.eclipse.osgi.container.Module.start(Module.java:457)
at
org.eclipse.osgi.internal.framework.EquinoxBundle.start(EquinoxBundle.java:392)
at
org.eclipse.osgi.internal.framework.EquinoxBundle.start(EquinoxBundle.java:411)
at
org.apache.karaf.features.internal.service.FeaturesServiceImpl.startBundle(FeaturesServiceImpl.java:1286)
at
org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:846)
at
org.apache.karaf.features.internal.service.FeaturesServiceImpl.doProvision(FeaturesServiceImpl.java:1176)
at
org.apache.karaf.features.internal.service.FeaturesServiceImpl$1.call(FeaturesServiceImpl.java:1074)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.osgi.service.blueprint.container.ComponentDefinitionException:
Error when instantiating bean sampleServiceWithCachingImpl of class
org.opendaylight.infrautils.caches.sample.SampleServiceWithCachingImpl
at
org.apache.aries.blueprint.container.BeanRecipe.wrapAsCompDefEx(BeanRecipe.java:361)
at
org.apache.aries.blueprint.container.BeanRecipe.getInstanceFromType(BeanRecipe.java:351)
at
org.apache.aries.blueprint.container.BeanRecipe.getInstance(BeanRecipe.java:282)
at
org.apache.aries.blueprint.container.BeanRecipe.internalCreate2(BeanRecipe.java:830)
at
org.apache.aries.blueprint.container.BeanRecipe.internalCreate(BeanRecipe.java:811)
at
org.apache.aries.blueprint.di.AbstractRecipe$1.call(AbstractRecipe.java:79)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
org.apache.aries.blueprint.di.AbstractRecipe.create(AbstractRecipe.java:88)
at
org.apache.aries.blueprint.di.RefRecipe.internalCreate(RefRecipe.java:62)
at
org.apache.aries.blueprint.di.AbstractRecipe.create(AbstractRecipe.java:106)
at
org.apache.aries.blueprint.container.ServiceRecipe.createService(ServiceRecipe.java:285)
... 39 more
Caused by: java.lang.IncompatibleClassChangeError: Found interface
org.opendaylight.infrautils.caches.CacheProvider, but class was expected
at Proxye4b5f3d8_2a36_4067_b1b9_758c1f9fee27.newCache(Unknown Source)
at
org.opendaylight.infrautils.caches.sample.SampleServiceWithCachingImpl.<init>(SampleServiceWithCachingImpl.java:35)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at
org.apache.aries.blueprint.utils.ReflectionUtils.newInstance(ReflectionUtils.java:331)
at
org.apache.aries.blueprint.container.BeanRecipe.newInstance(BeanRecipe.java:984)
at
org.apache.aries.blueprint.container.BeanRecipe.getInstanceFromType(BeanRecipe.java:349)
... 48 more{code}
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