FULL PRODUCT VERSION :
java 9.0.4

ADDITIONAL OS VERSION INFORMATION :
Debian 9

EXTRA RELEVANT SYSTEM CONFIGURATION :
-Xmx80g

A DESCRIPTION OF THE PROBLEM :
After a ~million of crawled web sites i am suddenly getting the following error

```
java.lang.StackOverflowError
        at java.base/java.net.SocketInputStream.socketRead0(Native Method)
        at java.base/java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
        at java.base/java.net.SocketInputStream.read(SocketInputStream.java:171)
        at java.base/java.net.SocketInputStream.read(SocketInputStream.java:141)
        at java.base/java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
        at java.base/java.io.BufferedInputStream.read1(BufferedInputStream.java:286)
        at java.base/java.io.BufferedInputStream.read(BufferedInputStream.java:345)
        at java.base/sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:746)
        at java.base/sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:689)
        at java.base/sun.net.www.protocol.http.HttpURLConnection.doTunneling(HttpURLConnection.java:2074)
        at java.base/sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:854)
        at java.base/sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:689)
        at java.base/sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:859)
        at java.base/sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:689)
        at java.base/sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:859)
        at java.base/sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:689)
        at java.base/sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:859)
        at java.base/sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:689)
        at java.base/sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:859)
        at java.base/sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:689)
        at java.base/sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:859)
        at java.base/sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:689)
        at java.base/sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:859)
...
// last 2 lines repeat for a while
// the stack trace does not contain any reference to my code
```

Later `Starting coordinated shutdown from JVM shutdown hook`

Note:
I am allowing redirections so that could lead to the problem



ERROR MESSAGES/STACK TRACES THAT OCCUR :
java.lang.StackOverflowError
        at java.base/java.net.SocketInputStream.socketRead0(Native Method)
        at java.base/java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
        at java.base/java.net.SocketInputStream.read(SocketInputStream.java:171)
        at java.base/java.net.SocketInputStream.read(SocketInputStream.java:141)
        at java.base/java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
        at java.base/java.io.BufferedInputStream.read1(BufferedInputStream.java:286)
        at java.base/java.io.BufferedInputStream.read(BufferedInputStream.java:345)
        at java.base/sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:746)
        at java.base/sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:689)
        at java.base/sun.net.www.protocol.http.HttpURLConnection.doTunneling(HttpURLConnection.java:2074)
        at java.base/sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:854)
        at java.base/sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:689)
        at java.base/sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:859)
        at java.base/sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:689)
        at java.base/sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:859)
        at java.base/sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:689)
        at java.base/sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:859)
        at java.base/sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:689)
        at java.base/sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:859)
        at java.base/sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:689)
        at java.base/sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:859)
        at java.base/sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:689)
        at java.base/sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:859)

REPRODUCIBILITY :
This bug can be reproduced rarely.