Ioan-Cristian Linte created FELIX-5729:
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Summary: NoSuchFieldError when @Reference referenceInterface type
different than field type
Key: FELIX-5729
URL: https://issues.apache.org/jira/browse/FELIX-5729
Project: Felix
Issue Type: Bug
Components: SCR Tooling
Reporter: Ioan-Cristian Linte
Priority: Minor
{{NoSuchFieldError}} is thrown when injecting dependencies for a component
{{Foo}} that has a field {{bar}} of type {{T1}} with
{{@Reference(referenceInterface = T2.class)}} and {{T2}} implements {{T1}}.
This error is caused by the bind/unbind methods generated by maven-scr-plugin
which have bytecode generated for get/set field {{bar}} operations with field
descriptor of type {{T2}} instead of {{T1}}.
Bytecode:
{code:java}
protected void bindBar(T2);
Code:
0: aload_0
1: aload_1
2: putfield #95 // Field bar:LT2;
5: return
protected void unbindBar(T2);
Code:
0: aload_0
1: getfield #95 // Field bar:LT2;
4: aload_1
5: if_acmpne 13
8: aload_0
9: aconst_null
10: putfield #95 // Field bar:LT2;
{code}
StackTrace:
{noformat}
The bindBar method has thrown an exception (java.lang.NoSuchFieldError: bar)
java.lang.NoSuchFieldError: bar
at Foo.bindBar(Foo.java)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.apache.felix.scr.impl.inject.BaseMethod.invokeMethod(BaseMethod.java:224)
at
org.apache.felix.scr.impl.inject.BaseMethod.access$500(BaseMethod.java:39)
at
org.apache.felix.scr.impl.inject.BaseMethod$Resolved.invoke(BaseMethod.java:617)
at
org.apache.felix.scr.impl.inject.BaseMethod.invoke(BaseMethod.java:501)
at
org.apache.felix.scr.impl.inject.BindMethod.invoke(BindMethod.java:655)
at
org.apache.felix.scr.impl.manager.DependencyManager.doInvokeBindMethod(DependencyManager.java:1722)
at
org.apache.felix.scr.impl.manager.DependencyManager.open(DependencyManager.java:1556)
at
org.apache.felix.scr.impl.manager.SingleComponentManager.createImplementationObject(SingleComponentManager.java:261)
at
org.apache.felix.scr.impl.manager.SingleComponentManager.createComponent(SingleComponentManager.java:109)
at
org.apache.felix.scr.impl.manager.SingleComponentManager.getService(SingleComponentManager.java:906)
at
org.apache.felix.scr.impl.manager.SingleComponentManager.getServiceInternal(SingleComponentManager.java:879)
at
org.apache.felix.scr.impl.manager.SingleComponentManager.getService(SingleComponentManager.java:823)
{noformat}
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