java.net.SocketException: Software caused connection abort: recv failed

if you see crap like this:

Caused by: java.net.SocketException: Software caused connection abort: recv failed
            at java.net.SocketInputStream.socketRead0(Native Method)
            at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
            at java.net.SocketInputStream.read(SocketInputStream.java:170)
            at java.net.SocketInputStream.read(SocketInputStream.java:141)
            at sun.security.ssl.InputRecord.readFully(InputRecord.java:465)
            at sun.security.ssl.InputRecord.read(InputRecord.java:503)
            at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:973)
            at sun.security.ssl.SSLSocketImpl.waitForClose(SSLSocketImpl.java:1769)
            at sun.security.ssl.HandshakeOutStream.flush(HandshakeOutStream.java:124)
            at sun.security.ssl.Handshaker.sendChangeCipherSpec(Handshaker.java:1083)
            at sun.security.ssl.ClientHandshaker.sendChangeCipherAndFinish(ClientHandshaker.java:1222)
            at sun.security.ssl.ClientHandshaker.serverHelloDone(ClientHandshaker.java:1134)
            at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:348)
            at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979)
            at sun.security.ssl.Handshaker.process_record(Handshaker.java:914)
            at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062)
            at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)
            at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403)
            at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387)
            at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559)
            at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)
            at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1283)
            at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1258)
            at sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:250)

it means that the web service consumer doesn't send the certificate
In reality the client should send a different (more meaningful) error, related to SSL handshake, that in reality it catched and ignores....then he tries to read the data, which never arrive, then he complains that the server closed the socket.
You discover what really happened by setting the debug flags for jsse and you see that the server requests the client certificate, receives nothing and then sends the client to hell - which is the expected behaviour.

Reflections: advanced queries on Java classpath

We have already explored Reflections here .

Another cool feature is to find programmatically all classes where a given method is invoked; here I search for all references to method oracle.ucp.common.UniversalConnectionPoolBase.registerConnectionAffinityCallback(...):

package com.pierre.typequerylanguage;

import static org.reflections.ReflectionUtils.getAllMethods;
import static org.reflections.ReflectionUtils.withPrefix;

import java.io.File;
import java.lang.reflect.Member;
import java.lang.reflect.Method;
import java.net.URL;
import java.util.Collection;
import java.util.Set;

import org.reflections.Reflections;
import org.reflections.scanners.FieldAnnotationsScanner;
import org.reflections.scanners.MemberUsageScanner;
import org.reflections.scanners.MethodAnnotationsScanner;
import org.reflections.scanners.MethodParameterNamesScanner;
import org.reflections.scanners.MethodParameterScanner;
import org.reflections.scanners.SubTypesScanner;
import org.reflections.scanners.TypeAnnotationsScanner;
import org.reflections.util.ClasspathHelper;
import org.reflections.util.ConfigurationBuilder;
import org.reflections.util.FilterBuilder;

public class FindClassesInvokingMethod{
 public static boolean VERBOSE = true;

 public static void main(String[] args) {
  if (VERBOSE) {
   System.out.println("searching in the following jars:");
   System.out.println(System.getProperty("java.class.path").replace(File.pathSeparatorChar, '\n'));
  }
  FilterBuilder oracleFilter = new FilterBuilder().include("oracle.*");
  Collection<URL> asList = ClasspathHelper.forJavaClassPath();
  Reflections reflections = new Reflections(new ConfigurationBuilder().setUrls(asList).filterInputsBy(oracleFilter).setScanners(new SubTypesScanner(false), new TypeAnnotationsScanner(), new FieldAnnotationsScanner(),
                new MethodAnnotationsScanner(), new MethodParameterScanner(), new MethodParameterNamesScanner(), new MemberUsageScanner()));
  ;
  System.out.println("searching now");
  
  
  Set<Method> myMethods = getAllMethods(oracle.ucp.common.UniversalConnectionPoolBase.class, withPrefix("registerConnectionAffinityCallback"));
  System.out.println(myMethods.size());
  for (Method method : myMethods) {
   System.out.println(method.getDeclaringClass());
   Set<Member> usages = reflections.getMethodUsage(method);
   for (Member member : usages) {
    System.out.println("member.getDeclaringClass() " + member.getDeclaringClass());
   }
  }
  

  System.out.println("searching done");
 }

}

java.io.EOFException: SSL peer shut down incorrectly

This error:

Caused by: javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:899)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1218)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1245)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1229)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:476)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:166)
    at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1033)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:230)
    at com.sun.jersey.client.urlconnection.URLConnectionClientHandler$1$1.getOutputStream(URLConnectionClientHandler.java:202)
    at com.sun.jersey.api.client.CommittingOutputStream.commitWrite(CommittingOutputStream.java:117)
    at com.sun.jersey.api.client.CommittingOutputStream.write(CommittingOutputStream.java:89)
    at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:202)
    at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:272)
    at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:276)
    at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:122)
    at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:212)
    at java.io.BufferedWriter.flush(BufferedWriter.java:236)
    at com.sun.jersey.core.util.ReaderWriter.writeToAsString(ReaderWriter.java:191)
    at com.sun.jersey.core.provider.AbstractMessageReaderWriterProvider.writeToAsString(AbstractMessageReaderWriterProvider.java:128)
    at com.sun.jersey.core.impl.provider.entity.StringProvider.writeTo(StringProvider.java:88)
    at com.sun.jersey.core.impl.provider.entity.StringProvider.writeTo(StringProvider.java:58)
    at com.sun.jersey.api.client.RequestWriter.writeRequestEntity(RequestWriter.java:311)
    at com.sun.jersey.client.urlconnection.URLConnectionClientHandler._invoke(URLConnectionClientHandler.java:181)
    at com.sun.jersey.client.urlconnection.URLConnectionClientHandler.handle(URLConnectionClientHandler.java:129)
    ... 7 more
Caused by: java.io.EOFException: SSL peer shut down incorrectly
    at com.sun.net.ssl.internal.ssl.InputRecord.read(InputRecord.java:462)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:880)
    ... 30 more


Unexpected error occured!
com.sun.jersey.api.client.ClientHandlerException: java.net.SocketException: Connection reset
    at com.sun.jersey.client.urlconnection.URLConnectionClientHandler.handle(URLConnectionClientHandler.java:131)
    at com.csg.cs.batch.launch.client.util.JerseyClientWrapper$1.handle(JerseyClientWrapper.java:67)
    at com.sun.jersey.api.client.Client.handle(Client.java:629)
    at com.sun.jersey.api.client.WebResource.handle(WebResource.java:601)
    at com.sun.jersey.api.client.WebResource.access$200(WebResource.java:74)
    at com.sun.jersey.api.client.WebResource$Builder.post(WebResource.java:507)
    at com.csg.cs.batch.launch.client.util.JerseyClientWrapper.postOverHTTPS(JerseyClientWrapper.java:87)
    at com.csg.cs.batch.launch.client.JobClient.main(JobClient.java:86)
Caused by: java.net.SocketException: Connection reset
    at java.net.SocketInputStream.read(SocketInputStream.java:168)
    at com.sun.net.ssl.internal.ssl.InputRecord.readFully(InputRecord.java:422)
    at com.sun.net.ssl.internal.ssl.InputRecord.read(InputRecord.java:460)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:880)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1218)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1245)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1229)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:476)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:166)
    at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1033)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:230)
    at com.sun.jersey.client.urlconnection.URLConnectionClientHandler$1$1.getOutputStream(URLConnectionClientHandler.java:202)
    at com.sun.jersey.api.client.CommittingOutputStream.commitWrite(CommittingOutputStream.java:117)
    at com.sun.jersey.api.client.CommittingOutputStream.write(CommittingOutputStream.java:89)
    at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:202)
    at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:272)
    at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:276)
    at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:122)
    at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:212)
    at java.io.BufferedWriter.flush(BufferedWriter.java:236)
    at com.sun.jersey.core.util.ReaderWriter.writeToAsString(ReaderWriter.java:191)
    at com.sun.jersey.core.provider.AbstractMessageReaderWriterProvider.writeToAsString(AbstractMessageReaderWriterProvider.java:128)
    at com.sun.jersey.core.impl.provider.entity.StringProvider.writeTo(StringProvider.java:88)
    at com.sun.jersey.core.impl.provider.entity.StringProvider.writeTo(StringProvider.java:58)
    at com.sun.jersey.api.client.RequestWriter.writeRequestEntity(RequestWriter.java:311)
    at com.sun.jersey.client.urlconnection.URLConnectionClientHandler._invoke(URLConnectionClientHandler.java:181)
    at com.sun.jersey.client.urlconnection.URLConnectionClientHandler.handle(URLConnectionClientHandler.java:129)

according to Oracle Support KB documents:

SSL-Encrypted JDBC Connections Fail With "Remote host closed connection during handshake" (Doc ID 2149709.1)

Getting "javax.net.ssl.SSLHandshakeException: Remote Host Closed Connection During Handshake" Error (Doc ID 1572454.1)

it could be because of unsupported cypher suites (not in our case, this is a WLS to WLS communication, a DB listener is not involved) , or a proxy or a firewall in between that mangles the data transfer or closes the connection (mmmm this also is unsure)