The following code compiles without any problem in Eclipse using JDK7 (I am using update 10, but should be reproducible with any version of JDK7), but fails when compiled through command line with exact same JDK. The class just provides stub implementation of interface methods.
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.security.cert.X509Certificate;
import java.util.Dictionary;
import java.util.Enumeration;
import java.util.List;
import java.util.Map;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.BundleException;
import org.osgi.framework.ServiceReference;
import org.osgi.framework.Version;
public class TestBundle implements Bundle {
/**
* @param args
*/
public static void main(String[] args) {
}
@Override
public int compareTo(Bundle o) {
return 0;
}
@Override
public <A> A adapt(Class<A> arg0) {
return null;
}
@Override
public Enumeration<URL> findEntries(String arg0, String arg1, boolean arg2) {
return null;
}
@Override
public BundleContext getBundleContext() {
return null;
}
@Override
public long getBundleId() {
return 0;
}
@Override
public File getDataFile(String arg0) {
return null;
}
@Override
public URL getEntry(String arg0) {
return null;
}
@Override
public Enumeration<String> getEntryPaths(String arg0) {
return null;
}
@Override
public Dictionary<String, String> getHeaders() {
return null;
}
@Override
public Dictionary<String, String> getHeaders(String arg0) {
return null;
}
@Override
public long getLastModified() {
return 0;
}
@Override
public String getLocation() {
return null;
}
@Override
public ServiceReference<?>[] getRegisteredServices() {
return null;
}
@Override
public URL getResource(String arg0) {
return null;
}
@Override
public Enumeration<URL> getResources(String arg0) throws IOException {
return null;
}
@Override
public ServiceReference<?>[] getServicesInUse() {
return null;
}
@Override
public Map<X509Certificate, List<X509Certificate>> getSignerCertificates(
int arg0) {
return null;
}
@Override
public int getState() {
return 0;
}
@Override
public String getSymbolicName() {
return null;
}
@Override
public Version getVersion() {
return null;
}
@Override
public boolean hasPermission(Object arg0) {
return false;
}
@Override
public Class<?> loadClass(String arg0) throws ClassNotFoundException {
return null;
}
@Override
public void start() throws BundleException {
}
@Override
public void start(int arg0) throws BundleException {
}
@Override
public void stop() throws BundleException {
}
@Override
public void stop(int arg0) throws BundleException {
}
@Override
public void uninstall() throws BundleException {
}
@Override
public void update() throws BundleException {
}
@Override
public void update(InputStream arg0) throws BundleException {
}
}
The jar file for osgi can be downloaded from here
I am using the following command to compile this via command line:
javac.exe -cp org.eclipse.osgi_3.8.0.v20120529-1548.jar TestBundle.java
It gives following error when compiled through command line:
TestBundle.java:101: error: type ServiceReference does not take parameters
public ServiceReference<?>[] getRegisteredServices() {
^
TestBundle.java:119: error: type ServiceReference does not take parameters
public ServiceReference<?>[] getServicesInUse() {
^
TestBundle.java:18: error: TestBundle is not abstract and does not override abstract method adapt(Class) in Bundle
public class TestBundle implements Bundle {
^
TestBundle.java:28: error: method does not override or implement a method from a supertype
@Override
^
TestBundle.java:35: error: name clash: <A>adapt(Class<A>) in TestBundle 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>)
TestBundle.java:34: error: method does not override or implement a method from a supertype
@Override
^
6 errors
The OSGi spec bundles have an issue with generics when compiled on Java 7. This is because the bundles where compiled with backwards compatibility for jdk 1.4 which makes them break in Jdk 7. After a lot of complaints a new version was released that is compliant to jdk 7 now.
The 4.3.1 sources are identically to 4.3.0. It is just recompiled. You should be able to compile your code with this jar. I am not sure how this relates to the jar from eclipse you used but I guess they just used the old compiled spec classes.
http://search.maven.org/remotecontent?filepath=org/osgi/org.osgi.core/4.3.1/org.osgi.core-4.3.1.jar