[jira] [Created] (NETBEANS-5499) Platform apps cannot connect using HTTP protocol on JDK16

["Svatopluk Dedic (Jira)" <ji...@apache.org>]

Svatopluk Dedic created NETBEANS-5499:
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             Summary: Platform apps cannot connect using HTTP protocol on JDK16
                 Key: NETBEANS-5499
                 URL: https://issues.apache.org/jira/browse/NETBEANS-5499
             Project: NetBeans
          Issue Type: Bug
          Components: core
    Affects Versions: 12.3
            Reporter: Svatopluk Dedic


I've found out that my platfom application does not work at all with HTTP protocol when run on JDK 16. The error thrown is:
{code:java}
INFO [org.netbeans.modules.autoupdate.updateproviders.AutoupdateCatalogFactory]: Unknown protocol: http
java.lang.IllegalStateException: Unknown protocol: http
        at org.apache.felix.framework.URLHandlersStreamHandlerProxy.parseURL(URLHandlersStreamHandlerProxy.java:373)
        at java.base/java.net.URL.<init>(URL.java:701)
Caused: java.net.MalformedURLException: Unknown protocol: http
        at java.base/java.net.URL.<init>(URL.java:706)
        at java.base/java.net.URL.<init>(URL.java:568)
        at java.base/java.net.URL.<init>(URL.java:515)
[catch] at org.netbeans.modules.autoupdate.updateprovider.AutoupdateCatalogFactory.createUpdateProvider(AutoupdateCatalogFactory.java:98)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:567)
        at org.netbeans.core.startup.layers.BinaryFS$AttrImpl$MethodAndParams.invoke(BinaryFS.java:730)
        at org.netbeans.core.startup.layers.BinaryFS$AttrImpl.getValue(BinaryFS.java:660)
        at org.netbeans.core.startup.layers.BinaryFS$BFSBase.getAttribute(BinaryFS.java:506)


{code}
No URL with http(s): protocol can be even *parsed*. 

I managed to isolate the issue - it is caused by *Apache Felix* library included in NB platform that provides {{org.osgi.framework.launch.FrameworkFactory}} token.

The bug *does not occur* in NetBeans IDE, which has a direct dependency (Needs: declaration) on *org.netbeans.netbinox* module from its *ide.kit* module. In NetBeans, Netbinox loads and installs its URLStreamHandlerFactory ({{org.eclipse.osgi.framework.internal.protocol.StreamHandlerFactory}})

In a platform app that does not load (need) Netbinox, the Felix library installs its own URLStreamHandleFactory ( {{org.apache.felix.framework.URLHandlers}}), that creates *proxies*. So USHF for http *is* actually created, but it afterwards throws {{MalformedURLException}} on any http: url spec.

The bug does not occur on earlier JDKs.



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