java validation shouldn't throw Exception if no connection to tx.fhir.org

[patrick-werner]

Issue: the validation-cli throws an exception if the network is down and tx.fhir.org not connectable.

Expected behaviour: Meaningful error message including the -tx n/a option

Exception in thread "main" org.hl7.fhir.dstu3.utils.client.EFhirClientException: Error sending Http Request: Software caused connection abort (connect failed)
	at org.hl7.fhir.dstu3.utils.client.ClientUtils.sendRequest(ClientUtils.java:331)
	at org.hl7.fhir.dstu3.utils.client.ClientUtils.issueResourceRequest(ClientUtils.java:250)
	at org.hl7.fhir.dstu3.utils.client.ClientUtils.issueResourceRequest(ClientUtils.java:234)
	at org.hl7.fhir.dstu3.utils.client.ClientUtils.issueResourceRequest(ClientUtils.java:225)
	at org.hl7.fhir.dstu3.utils.client.ClientUtils.issueGetResourceRequest(ClientUtils.java:161)
	at org.hl7.fhir.dstu3.utils.client.FHIRToolingClient.getCapabilitiesStatementQuick(FHIRToolingClient.java:198)
	at org.hl7.fhir.convertors.TerminologyClientR3.getCapabilitiesStatementQuick(TerminologyClientR3.java:88)
	at org.hl7.fhir.r5.context.SimpleWorkerContext.connectToTSServer(SimpleWorkerContext.java:225)
	at org.hl7.fhir.r5.validation.ValidationEngine.connectToTSServer(ValidationEngine.java:749)
	at org.hl7.fhir.r5.validation.ValidationEngine.setTerminologyServer(ValidationEngine.java:357)
	at org.hl7.fhir.r5.validation.ValidationEngine.<init>(ValidationEngine.java:386)
	at org.hl7.fhir.r5.validation.Validator.main(Validator.java:474)
Caused by: java.net.ConnectException: Software caused connection abort (connect failed)
	at java.base/java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:399)
	at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:242)
	at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:224)
	at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:403)
	at java.base/java.net.Socket.connect(Socket.java:591)
	at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:121)
	at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:180)
	at org.apache.http.impl.conn.ManagedClientConnectionImpl.open(ManagedClientConnectionImpl.java:326)
	at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:605)
	at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:440)
	at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:835)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:108)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56)
	at org.hl7.fhir.dstu3.utils.client.ClientUtils.sendRequest(ClientUtils.java:329)
	... 11 more

[grahamegrieve]

fixed as of 0.9.84