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javax.naming.CommunicationException [Root exception is java.net.ConnectException: t3: Destination unreachable

While compiling some code in JDeveloper I was getting the below error. It was coming due to proxy issue. So go to Jdeveloper then Tools—Preferences—Web Browser and Proxy then in exceptions field enter your server hostname. Test your code again and this time hopefully error will not come. It resolved my issue and i hope it will be helpful.

SEVERE: javax.naming.CommunicationException [Root exception is java.net.ConnectException: t3://hostname:port: Destination unreachable; nested exception is: 
java.net.ProtocolException: unrecognized response from proxy: ‘HTTP/1.1 502 Proxy Error ( The specified Secure Sockets Layer (SSL) port is not allowed. Forefront TMG is not configured to allow SSL requests from this port. Most Web browsers use port 443 for SSL requests.  )’; No available router to destination]
oracle.bpel.services.workflow.client.WorkflowServiceClientException: javax.naming.CommunicationException [Root exception is java.net.ConnectException: t3://hostname:port: Destination unreachable; nested exception is: 
java.net.ProtocolException: unrecognized response from proxy: ‘HTTP/1.1 502 Proxy Error ( The specified Secure Sockets Layer (SSL) port is not allowed. Forefront TMG is not configured to allow SSL requests from this port. Most Web browsers use port 443 for SSL requests.  )’; No available router to destination]
at oracle.bpel.services.workflow.client.WorkflowServiceClientContext.createInitialContext(WorkflowServiceClientContext.java:793)
at oracle.bpel.services.workflow.client.WorkflowServiceClientContext.getJNDIInitialContext(WorkflowServiceClientContext.java:423)
at oracle.bpel.services.workflow.query.client.TaskQueryServiceRemoteClient.getInitialContext(TaskQueryServiceRemoteClient.java:47)
at oracle.bpel.services.workflow.query.client.TaskQueryServiceRemoteClient.authenticate(TaskQueryServiceRemoteClient.java:90)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at oracle.bpel.services.workflow.client.WFClientRetryInvocationHandler.invokeTarget(WFClientRetryInvocationHandler.java:144)
at oracle.bpel.services.workflow.client.WFClientRetryInvocationHandler.invoke(WFClientRetryInvocationHandler.java:82)
at $Proxy14.authenticate(Unknown Source)
at nl.whitehorses.fcforms.tasks.utility.BPELWorkflowServices.authenticate(BPELWorkflowServices.java:191)
at nl.whitehorses.fcforms.tasks.services.HumanTaskClient.completeTask(HumanTaskClient.java:265)
at nl.whitehorses.fcforms.tasks.test.Complete.<init>(Complete.java:9)
at nl.whitehorses.fcforms.tasks.test.Complete.main(Complete.java:14)
Caused by: javax.naming.CommunicationException [Root exception is java.net.ConnectException: t3://hostname:port: Destination unreachable; nested exception is: 
java.net.ProtocolException: unrecognized response from proxy: ‘HTTP/1.1 502 Proxy Error ( The specified Secure Sockets Layer (SSL) port is not allowed. Forefront TMG is not configured to allow SSL requests from this port. Most Web browsers use port 443 for SSL requests.  )’; No available router to destination]
at weblogic.jndi.internal.ExceptionTranslator.toNamingException(ExceptionTranslator.java:40)
at weblogic.jndi.WLInitialContextFactoryDelegate.toNamingException(WLInitialContextFactoryDelegate.java:788)
at weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialContextFactoryDelegate.java:368)
at weblogic.jndi.Environment.getContext(Environment.java:315)
at weblogic.jndi.Environment.getContext(Environment.java:285)
at weblogic.jndi.WLInitialContextFactory.getInitialContext(WLInitialContextFactory.java:117)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:667)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:288)
at javax.naming.InitialContext.init(InitialContext.java:223)
at javax.naming.InitialContext.<init>(InitialContext.java:197)
at oracle.bpel.services.workflow.client.WorkflowServiceClientContext.createInitialContext(WorkflowServiceClientContext.java:789)
… 14 more
Caused by: java.net.ConnectException: t3://hostname:port: Destination unreachable; nested exception is: 
java.net.ProtocolException: unrecognized response from proxy: ‘HTTP/1.1 502 Proxy Error ( The specified Secure Sockets Layer (SSL) port is not allowed. Forefront TMG is not configured to allow SSL requests from this port. Most Web browsers use port 443 for SSL requests.  )’; No available router to destination
at weblogic.rjvm.RJVMFinder.findOrCreateInternal(RJVMFinder.java:216)
at weblogic.rjvm.RJVMFinder.findOrCreate(RJVMFinder.java:170)
at weblogic.rjvm.ServerURL.findOrCreateRJVM(ServerURL.java:153)
at weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialContextFactoryDelegate.java:353)
… 22 more
Caused by: java.rmi.ConnectException: Destination unreachable; nested exception is: 
java.net.ProtocolException: unrecognized response from proxy: ‘HTTP/1.1 502 Proxy Error ( The specified Secure Sockets Layer (SSL) port is not allowed. Forefront TMG is not configured to allow SSL requests from this port. Most Web browsers use port 443 for SSL requests.  )’; No available router to destination
at weblogic.rjvm.ConnectionManager.bootstrap(ConnectionManager.java:470)
at weblogic.rjvm.ConnectionManager.bootstrap(ConnectionManager.java:321)
at weblogic.rjvm.RJVMManager.findOrCreateRemoteInternal(RJVMManager.java:254)
at weblogic.rjvm.RJVMManager.findOrCreate(RJVMManager.java:197)
at weblogic.rjvm.RJVMFinder.findOrCreateRemoteServer(RJVMFinder.java:238)
at weblogic.rjvm.RJVMFinder.findOrCreateInternal(RJVMFinder.java:200)
… 25 more
Exception in thread “main” java.lang.RuntimeException: javax.naming.CommunicationException [Root exception is java.net.ConnectException: t3://hostname:port: Destination unreachable; nested exception is: 
java.net.ProtocolException: unrecognized response from proxy: ‘HTTP/1.1 502 Proxy Error ( The specified Secure Sockets Layer (SSL) port is not allowed. Forefront TMG is not configured to allow SSL requests from this port. Most Web browsers use port 443 for SSL requests.  )’; No available router to destination]
at nl.whitehorses.fcforms.tasks.services.HumanTaskClient.completeTask(HumanTaskClient.java:280)
at nl.whitehorses.fcforms.tasks.test.Complete.<init>(Complete.java:9)
at nl.whitehorses.fcforms.tasks.test.Complete.main(Complete.java:14)

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Muhammad Nasir

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