Client requests fail when running with IBM jre.

Empieza reproduciendo la solicitud de ReportDownloadsApi en la versión de IBM JRE mostrada y compárala con OpenJDK. Lee Invokers.ApiClient.java y el stack trace de com.squareup.okhttp ConnectionSpecSelector; después, inspecciona la dependencia okhttp 2.7 y las notas de la versión v3 referenciadas. Se considera completado cuando la solicitud funciona en las IBM JRE indicadas o la limitación de compatibilidad está documentada.

Whenever I try to use the cybersource-rest-client-java on the IBM jre I get the following exception:

Invokers.ApiException: java.net.UnknownServiceException: Unable to find acceptable protocols. isFallback=false, modes=[ConnectionSpec(cipherSuites=[TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, TLS_DHE_RSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, TLS_DHE_RSA_WITH_AES_128_CBC_SHA, TLS_DHE_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_128_GCM_SHA256, TLS_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_3DES_EDE_CBC_SHA], tlsVersions=[TLS_1_2, TLS_1_1, TLS_1_0], supportsTlsExtensions=true), ConnectionSpec(cipherSuites=[TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, TLS_DHE_RSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, TLS_DHE_RSA_WITH_AES_128_CBC_SHA, TLS_DHE_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_128_GCM_SHA256, TLS_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_3DES_EDE_CBC_SHA], tlsVersions=[TLS_1_0], supportsTlsExtensions=true), ConnectionSpec()], supported protocols=[TLSv1]
	at Invokers.ApiClient.execute(ApiClient.java:1086)
	at Invokers.ApiClient.execute(ApiClient.java:1040)
	at Api.ReportDownloadsApi.downloadReportWithHttpInfo(ReportDownloadsApi.java:160)
	at test.ReportTest.main(ReportTest.java:37)
Caused by: java.net.UnknownServiceException: Unable to find acceptable protocols. isFallback=false, modes=[ConnectionSpec(cipherSuites=[TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, TLS_DHE_RSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, TLS_DHE_RSA_WITH_AES_128_CBC_SHA, TLS_DHE_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_128_GCM_SHA256, TLS_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_3DES_EDE_CBC_SHA], tlsVersions=[TLS_1_2, TLS_1_1, TLS_1_0], supportsTlsExtensions=true), ConnectionSpec(cipherSuites=[TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, TLS_DHE_RSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, TLS_DHE_RSA_WITH_AES_128_CBC_SHA, TLS_DHE_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_128_GCM_SHA256, TLS_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_3DES_EDE_CBC_SHA], tlsVersions=[TLS_1_0], supportsTlsExtensions=true), ConnectionSpec()], supported protocols=[TLSv1]
	at com.squareup.okhttp.internal.ConnectionSpecSelector.configureSecureSocket(ConnectionSpecSelector.java:73)
	at com.squareup.okhttp.internal.io.RealConnection.connectTls(RealConnection.java:185)
	at com.squareup.okhttp.internal.io.RealConnection.connectSocket(RealConnection.java:149)
	at com.squareup.okhttp.internal.io.RealConnection.connect(RealConnection.java:112)
	at com.squareup.okhttp.internal.http.StreamAllocation.findConnection(StreamAllocation.java:184)
	at com.squareup.okhttp.internal.http.StreamAllocation.findHealthyConnection(StreamAllocation.java:126)
	at com.squareup.okhttp.internal.http.StreamAllocation.newStream(StreamAllocation.java:95)
	at com.squareup.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:281)
	at com.squareup.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:224)
	at com.squareup.okhttp.Call.getResponse(Call.java:286)
	at com.squareup.okhttp.Call$ApplicationInterceptorChain.proceed(Call.java:243)
	at com.squareup.okhttp.Call.getResponseWithInterceptorChain(Call.java:205)
	at com.squareup.okhttp.Call.execute(Call.java:80)
	at Invokers.ApiClient.execute(ApiClient.java:1061)

This is from a basic ReportDownloadsApi request that runs successfully using openjdk, but gives this error on 2 different ibm jre's (2 different systems, Linux and "IBM i"). One example jre version (Linux):

~/opt/ibm-java-x86_64-80/jre/bin/java -version
java version "1.8.0_221"
Java(TM) SE Runtime Environment (build 8.0.5.41 - pxa6480sr5fp41-20190919_01(SR5 FP41))
IBM J9 VM (build 2.9, JRE 1.8.0 Linux amd64-64-Bit Compressed References 20190911_427071 (JIT enabled, AOT enabled)
OpenJ9   - d581d49
OMR      - ca4db84
IBM      - 5cfdf9c)
JCL - 20190918_01 based on Oracle jdk8u221-b11

Is this library compatible with the IBM jre? Any suggestions on resolving this issue?

Some looking around suggest this may be due to the dependency on the now obsolete version of okhttp (2.7), and it's possible some similar issues have been in the v3 releases. Are there any plans to update this dependency?