B4J Question How do I run Email GoogleOAuth2 on Pi

[Noble]

I am using B4J v6.30 (Was using v6.10 same), I load the GoogleContacts Demo program on my Windows 10 B4J desktop, and it works as it should. (I did get my Client ID and Client Secret from Google). When I connect to the Raspberry Pi Model 3B the program loads to the Pi, starts and displays the Screen (all normal) then when I click the Get Data button, the program fails with following error in the log.

Waiting for debugger to connect...
Program started.
java.lang.Exception: No web browser found
at javafx.graphics/com.sun.javafx.application.HostServicesDelegate$StandaloneHostService.showDocument(HostServicesDelegate.java:183)
at javafx.graphics/javafx.application.HostServices.showDocument(HostServices.java:122)
at anywheresoftware.b4j.objects.JFX.ShowExternalDocument(JFX.java:121)
at b4j.example.googleoauth2._authenticate(googleoauth2.java:201)
at b4j.example.googleoauth2._getaccesstoken(googleoauth2.java:126)
at b4j.example.main$ResumableSub_btnGetData_Action.resume(main.java:135)
at b4j.example.main._btngetdata_action(main.java:110)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:625)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:234)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:168)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:90)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:94)
at anywheresoftware.b4a.BA$1.run(BA.java:215)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$9(PlatformImpl.java:418)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:417)
at javafx.graphics/com.sun.glass.ui.monocle.RunnableProcessor.runLoop(RunnableProcessor.java:92)
at javafx.graphics/com.sun.glass.ui.monocle.RunnableProcessor.run(RunnableProcessor.java:51)
at java.base/java.lang.Thread.run(Thread.java:844)

Makes me think I'm missing something I should have loaded on the Pi.
Thank you for your help

 

[Erel]

The code tries to open the default browser. There is no default browser in the RPi.

This is only needed once. You can do it on your pc and copy the created file (I don't remember its name check the code) to the RPi. From that point the program can use the same access token forever.

 

[Noble]

Erel, Thank you for your response - I still need a push in the right direction.

I found the token file ("oauth2token.dat") in the DataFolder on the PC and moved to the DataFolder on the RPi
Very first time after I move the token file to the RPi I get a different error:
javax.net.ssl.SSLPeerUnverifiedException: peer not authenticated
....
Token reset!!!
Online data not available.

Each time I run the GoogleContacts program again I get the:
java.lang.Exception: No web browser found
....

Looks like the token gets me by the "No web browser found" yet is not valid for ssl and then it's reset, thus I can't use it again.

root@Krispi:~# java -version
openjdk version "10.0.1-BellSoft" 2018-04-17
OpenJDK Runtime Environment (build 10.0.1-BellSoft+0)
OpenJDK Server VM (build 10.0.1-BellSoft+0, mixed mode)
root@Krispi:~#

 

[Erel]

Looks like a different issue now. The Java you are using doesn't recognize the certificate.
Use OkHttpUtils2 source code and modify it to initialize hc with hc.InitializeAcceptAll (bypass the certificate check).

 

[Noble]

I would like to know the preferred version of OS and Java that I should be installing on my RPi 3 B for for running the Google Contacts code.
After Erel's last post, I have tried several to no avail.
Is there a link (that's current ) that gives this information.

 

[Erel]

Try it with Oracle Java: http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

 

[Noble]

Erel, I have been using the:
2018-04-18-raspbian-strech.img
and I believe the link you suggest is the same place I have been getting Java, I'm using:
jdk-8u172-linux-arm32-vfp-hflt.gz
and tried the 171 version.
I have also tried adding the openjfx-8u40-sdk-overlay-linux-armv6hf.zip

any suggestions or loading procedures would help.

 

[Erel]

java -version should show oracle, not openjdk.

any suggestions or loading procedures would help.

Use OkHttpUtils2 source code and modify it to initialize hc with hc.InitializeAcceptAll (bypass the certificate check).

 

[Noble]

I'm still struggling with this, I'm trying to run the GoogleContacts example on a RPi.
I have tried the suggestions Erel has provided, the last one was over my head.
I figured if others were getting this working, then it must be the OS or Java options I was loading.
Currently I'm using:
2018-04-18-raspbian-strech.img
jdk-8u171-linux-arm32-vfp-hflt.gz (same version running on my PC)
openjfx-8u60-sdk-overlay-linux-armv6hf.zip (also have tried the 8u40-sdk)

I'm hoping someone can see an error in what I'm doing?

I get log errors of:

java.lang.ClassNotFoundException: com.sun.deploy.uitoolkit.impl.fx.HostServicesFactory
....
Error occurred on line: 103 (GoogleOAuth2) <-- This line is fx.ShowExternalDocument(link)
java.lang.NullPointerException
at javafx.application.HostServices.showDocument(HostServices.java:127)
at anywheresoftware.b4j.objects.JFX.ShowExternalDocument(JFX.java:121)
....

Any help would be appreciated. Thank you.

 

[Erel]

This means that you haven't copied the file as explained in post #2. You need to make the full authentication process on your PC.