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Home » Eclipse Projects » P2 » Errors related to Generics while compiling OSGi-Equinox dependent code with JDK 1.7(Errors related to Generics while compiling OSGi-Equinox dependent code with JDK 1.7)

Wed, 19 December 2012 07:11

Eclipse User

We have a OSGi/Equinox dependent code that is compiling fine with JDK 1.6. However, when we compile the same with JDK 1.7, we end up in compilation errors related to generics for the implemented or overridden methods.

To reproduce the problem as a standalone application, I have created a Java Class (OsgiBundleImpl.java) that implements the org.osgi.framework.Bundle interface. On compiling the same it gives the following error :

javac -cp ..\lib\org.eclipse.osgi_3.8.0.v20120529-1548.jar -d ..\bin OsgiBundleImpl.java
OsgiBundleImpl.java:94: error: type ServiceReference does not take parameters
public ServiceReference<?>[] getRegisteredServices() {
^
OsgiBundleImpl.java:112: error: type ServiceReference does not take parameters
public ServiceReference<?>[] getServicesInUse() {
^
OsgiBundleImpl.java:19: error: OsgiBundleImpl is not abstract and does not override abstract method adapt(Class) in Bundle
public class OsgiBundleImpl<A> implements Bundle {
^
OsgiBundleImpl.java:21: error: method does not override or implement a method from a supertype
@Override
^
OsgiBundleImpl.java:28: error: name clash: <A>adapt(Class<A>) in OsgiBundleImpl
and adapt(Class) in Bundle have the same erasure, yet neither overrides the other
public <A> A adapt(Class<A> arg0) {
^
where A is a type-variable:
A extends Object declared in method <A>adapt(Class<A>)
OsgiBundleImpl.java:27: error: method does not override or implement a method from a supertype
@Override
^
6 errors

Do we have any workaround like a javac/JVM flag that would enable the compilation of OsgiBundleImpl.java

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Thu, 28 February 2013 14:27

Eclipse User

Could be about: http://mail-archives.apache.org/mod_mbox/felix-users/201201.mbox/%3C4F030C3A.8040806@googlemail.com%3E

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