Angelos PaaS4SaaS Blog

Sunday, 12 April 2015

Getting inaccessible URL when executing REST calls within JCSSX????

Recently I was coding up a REST client for use with Oracle Documents Cloud, using Jersey REST client, and it needed to be deployed to Oracle Java Cloud SX (aka JCSSX). The client code worked perfectly on a local Weblogic 11g but when deployed to the JCSSX instance it would give the following error :
java.lang.RuntimeException: access denied ("" "", "connect,resolve")
Initially I was convinced that this was some sort of networking issue in JCSSX, I.e. it couldn't connect to the documents cloud server via the network.. I even tried manually setting the proxy in the Java Code all to no avail..
After quite a while looking I discovered the problem...
This is the detailed error message I got : 
Caused by: access denied ("" "" "connect,resolve")
at java.lang.SecurityManager.checkPermission(
at java.lang.SecurityManager.checkConnect(

... 81 more

The bold bits hint at the issue.. For some reason my code was using the Sun HTTP Handler which isn't supported on the JCSSX stack but I hadnt configured it to use the Sun Http Handler...You can get your code to use the Sun Http Handler by either setting the system property "UseSunHttpHandler=true" in code or by using Oracle Cloud SDK to set it as a system property.
To check if you have the UseSunHttpHandler set, issue the following command (changing your JCSSX details)
 javacloud list-system-properties -user <username> -p <password> -id <identityDomain>-si  <serverInstance> -httpproxy <httpProxy:port> -datacenter <dataCenterName>

If you have the UseSunHttpHander set to true, or even present, then remove it! Someone had set it in my instance but none of my team members would admit to it.....
 javacloud delete-system-property -user <username> -p <password> -id <identityDomain>-si  <serverInstance> -httpproxy <httpProxy:port> -datacenter <dataCenterName> -name UseSunHttpHandler

Restart your instance and all should then be well.

We've logged an enhancement request to get JCSSX to ignore this specific system property but just incase you hit it before the ER hits the JCSSX servers.

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