Spring DM compatibility with Spring 4.*

Question

An OSGi based application I have inherited uses the org.springframework.osgi.extender bundle version 1.2.1. Currently, I am using Java 1.7 and Spring 2.5.6.

I recently installed Java 8 on my machine and the org.springframework.osgi.extender bundle no longer launches due to the following error :

org.osgi.framework.BundleException: Activator start error in bundle org.springframework.osgi.extender [21].
        at org.apache.felix.framework.Felix.activateBundle(Felix.java:2196)
        at org.apache.felix.framework.Felix.startBundle(Felix.java:2064)
        at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:955)
        at org.apache.felix.shell.impl.StartCommandImpl.execute(StartCommandImpl.java:114)
        at org.apache.felix.shell.impl.Activator$ShellServiceImpl.executeCommand(Activator.java:249)
        at org.apache.felix.shell.tui.Activator$ShellTuiRunnable.run(Activator.java:184)
        at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.IllegalStateException: Cannot create ConcurrentHashMap - neither JDK 1.5 nor backport-concurrent available on the classpath
        at org.springframework.core.CollectionFactory.createConcurrentMap(CollectionFactory.java:229)
        at org.springframework.osgi.extender.internal.activator.ContextLoaderListener.<init>(ContextLoaderListener.java:332)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
        at java.lang.reflect.Constructor.newInstance(Unknown Source)
        at java.lang.Class.newInstance(Unknown Source)
        at org.apache.felix.framework.Felix.createBundleActivator(Felix.java:4336)
        at org.apache.felix.framework.Felix.activateBundle(Felix.java:2141)
        ... 6 more
java.lang.IllegalStateException: Cannot create ConcurrentHashMap - neither JDK 1.5 nor backport-concurrent available on the classpath

I was going to upgrade Spring to 4.0.3, but I notice that the org.springframework.core.CollectionFactory.createConcurrentMap() method has been deprecated and removed.

Will Spring DM be upgraded to work with Spring 4.*?

Answer 1

Will Spring DM be upgraded to work with Spring 4.*?

No. Spring discontinued to support OSGi since 4.0 and it was the right decision. The concept of Spring does not fit into OSGi.

See http://blog.osgi.org/2014/09/how-should-i-use-guicespringblueprint.html