Android Question SSLProtocolException : Should I worry?

Brian Dean

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Longtime User
I know next-to-nothing about net protocols so I am looking for guidance. An app that I released a few weeks ago (with 150 Playstore downloads) that am still developing has started throwing an "SSLProtocolException" error, but as far as I can see only on the devices that I use for debug. These devices are HTC Ones running Android 4.1.1. A less old device running Android 5.1.1 is unaffected; other newer devices are fine. The problem started a few evenings ago while I was doing some app development, so at first I assumed that I had caused the error - now I am not so sure. The app retrieves and scrapes html pages from a single web-site. My assumption is that something has changed in the path to the target url.

Here is the log message ..

B4X:
javax.net.ssl.SSLHandshakeException: javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0x515e4ae0: Failure in SSL library, usually a protocol error

Should I worry? Is there anything that I can or should do? Can I leave things as they are (I have had no user complaints yet)?

The code is a perfectly normal HttpJob download, and I have tested it with other urls - no problems. Here is (I hope) the relevant section of the unfiltered log ...

B4X:
*** Service (httputils2service) Create ***
** Service (httputils2service) Start **
pt_debug : pthread_create->start_routine=0x40b78645, tls=0x54a44f00, arg=0x50068b18
pt_debug : __thread_entry->func=0x40b78645
, tls=0x54a44f00, arg=0x50068b18
pt_debug : pthread_create->start_routine=0x40b78645, tls=0x54b48f00, arg=0x50aee960
pt_debug : __thread_entry->func=0x40b78645
, tls=0x54b48f00, arg=0x50aee960
VFY: unable to find class referenced in signature (Ljava/nio/file/Path;)
VFY: unable to find class referenced in signature ([Ljava/nio/file/OpenOption;)
VFY: unable to resolve static method 14132: Ljava/nio/file/Files;.newOutputStream (Ljava/nio/file/Path;[Ljava/nio/file/OpenOption;)Ljava/io/OutputStream;
VFY: unable to find class referenced in signature (Ljava/nio/file/Path;)
VFY: unable to find class referenced in signature ([Ljava/nio/file/OpenOption;)
VFY: unable to resolve static method 14131: Ljava/nio/file/Files;.newInputStream (Ljava/nio/file/Path;[Ljava/nio/file/OpenOption;)Ljava/io/InputStream;
javax.net.ssl.SSLHandshakeException: javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0x515e4ae0: Failure in SSL library, usually a protocol error
error:1407742E:SSL routines:SSL23_GET_SERVER_HELLO:tlsv1 alert protocol version (external/openssl/ssl/s23_clnt.c:741 0x4f457bbc:0x00000000)
    at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:412)
    at okhttp3.internal.connection.RealConnection.connectTls(RealConnection.java:242)
    at okhttp3.internal.connection.RealConnection.establishProtocol(RealConnection.java:200)
    at okhttp3.internal.connection.RealConnection.buildConnection(RealConnection.java:174)
    at okhttp3.internal.connection.RealConnection.connect(RealConnection.java:114)
    at okhttp3.internal.connection.StreamAllocation.findConnection(StreamAllocation.java:196)
    at okhttp3.internal.connection.StreamAllocation.findHealthyConnection(StreamAllocation.java:132)
    at okhttp3.internal.connection.StreamAllocation.newStream(StreamAllocation.java:101)
    at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:42)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:92)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:67)
    at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:92)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:67)
    at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:92)
    at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:120)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:92)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:67)
    at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:179)
    at okhttp3.RealCall.execute(RealCall.java:63)
    at anywheresoftware.b4h.okhttp.OkHttpClientWrapper.executeWithTimeout(OkHttpClientWrapper.java:156)
    at anywheresoftware.b4h.okhttp.OkHttpClientWrapper.access$0(OkHttpClientWrapper.java:153)
    at anywheresoftware.b4h.okhttp.OkHttpClientWrapper$ExecuteHelper.run(OkHttpClientWrapper.java:201)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:442)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
    at java.util.concurrent.FutureTask.run(FutureTask.java:137)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
    at java.lang.Thread.run(Thread.java:864)
    Suppressed: javax.net.ssl.SSLHandshakeException: javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0x515e4ae0: Failure in SSL library, usually a protocol error
error:1407742E:SSL routines:SSL23_GET_SERVER_HELLO:tlsv1 alert protocol version (external/openssl/ssl/s23_clnt.c:741 0x4f457bbc:0x00000000)
        ... 30 more
    Caused by: javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0x515e4ae0: Failure in SSL library, usually a protocol error
error:1407742E:SSL routines:SSL23_GET_SERVER_HELLO:tlsv1 alert protocol version (external/openssl/ssl/s23_clnt.c:741 0x4f457bbc:0x00000000)
        at org.apache.harmony.xnet.provider.jsse.NativeCrypto.SSL_do_handshake(Native Method)
        at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:371)
        ... 29 more
Caused by: javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0x515e4ae0: Failure in SSL library, usually a protocol error
error:1407742E:SSL routines:SSL23_GET_SERVER_HELLO:tlsv1 alert protocol version (external/openssl/ssl/s23_clnt.c:741 0x4f457bbc:0x00000000)
    at org.apache.harmony.xnet.provider.jsse.NativeCrypto.SSL_do_handshake(Native Method)
    at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:371)
    ... 29 more
ResponseError. Reason: javax.net.ssl.SSLHandshakeException: javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0x515e4ae0: Failure in SSL library, usually a protocol error
error:1407742E:SSL routines:SSL23_GET_SERVER_HELLO:tlsv1 alert protocol version (external/openssl/ssl/s23_clnt.c:741 0x4f457bbc:0x00000000), Response:
** Activity (main) Pause, UserClosed = false **

Thank you for any guidance or reassurance that you can offer.
 

JohnC

Expert
Licensed User
Longtime User
It may be that the website you were connecting to has finally "got with the program" and turned off support for TSL 1.0 - you can check the site for supported protocols here:


And according to this post from Erel, Android 4.x devices do not support TLS 1.1+, which may be why your android 4.x can't connect to it anymore:


Also, there are very few android 4.x devices out there, so you wont loose a lot of customers of you only support 5.0+.
 
Last edited:
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Brian Dean

Active Member
Licensed User
Longtime User
@JohnC : Thanks.

Also, there are very few android 4.x devices out there, so you wont loose a lot of customers of you only support 5.0+.

I am sure that you are right. I use them mainly because they have smaller screens and more or less guarantee that, if a layout fits, then things will look fine on more up-to-date handsets.
 
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