Just one more information:
I am calling from my go code like this:
RBinding.GetStringFromJava()
On Tuesday, September 10, 2019 at 4:56:00 PM UTC+5:30, Jay Sharma wrote:
>
> Hello @elias,
>
> I tried the following:
>
> 1. Created a java class :
>
> package reversebinding;
>
> public class RBinding {
> public static String getStringFromJava() {
> return "Hello from java !!";
> }
> }
>
> 2. Generated the .class file for this file.
>
> 3. Generated the android binding using gomobile tool and used
> -classpath="Path to my .class file"
>
> 4. Binding is generated successfully.
>
> *But when I used that generated (.aar) file in my android app and tried to
> trigger the api it is crashing; *
>
> 2019-09-10 16:36:54.199 9400-9430/com.sample E/GoLog: 2019/09/10 11:06:54
> test.go:134: testFunction [Test]
> 2019-09-10 16:36:54.199 9400-9430/com.sample E/GoLog: 2019/09/10 11:06:54
> test.go:136: [Test] Now going to call a java system function
> (System.CurrentTimeMillis()).....
> 2019-09-10 16:36:54.200 9400-9434/com.sample E/GoLog: 2019/09/10 11:06:54
> test.go:138: [Test] Called java function return value is: 1568113614199
> 2019-09-10 16:36:54.200 9400-9434/com.sample E/GoLog: 2019/09/10 11:06:54
> test.go:140: [Test] Now going to call my java function.....
> 2019-09-10 16:36:54.203 9400-0/com.sample E/Go: panic: runtime error:
> invalid memory address or nil pointer dereference
> 2019-09-10 16:36:54.203 9400-0/com.sample E/Go: [signal SIGSEGV:
> segmentation violation code=0x1 addr=0x0 pc=0x7568010708]
> 2019-09-10 16:36:54.203 9400-0/com.sample E/Go: goroutine 17 [running,
> locked to thread]:
> 2019-09-10 16:36:54.203 9400-0/com.sample E/Go:
> test.testFunction(0x4000000738)
> 2019-09-10 16:36:54.203 9400-0/com.sample E/Go:
> /home/test/2019/test/test.go:141 +0x190
> 2019-09-10 16:36:54.203 9400-0/com.sample E/Go:
> main.proxytest__testFunction(...)
> 2019-09-10 16:36:54.203 9400-0/com.sample com.sample E/Go:
> /tmp/gomobile-work-071468276/src/gobind/go_testmain.go:199
> 2019-09-10 16:36:54.203 9400-0/com.sample E/Go:
> main._cgoexpwrap_5427a26f9204_proxytest__testFunction(0x8020080280200802)
> 2019-09-10 16:36:54.203 9400-0/com.sample E/Go: _cgo_gotypes.go:606
> +0x1c
> 2019-09-10 16:36:54.204 9400-9423/com.sample A/libc: Fatal signal 6
> (SIGABRT), code -6 in tid 9423 (Thread-2)
>
> *Can you please provide you opinion. Let me know if any other information
> is needed. *
>
> Thanks....
>
>
> On Monday, September 9, 2019 at 5:40:25 PM UTC+5:30, Elias Naur wrote:
>>
>> On Mon Sep 9, 2019 at 3:09 AM Jay Sharma wrote:
>> >
>> > *Next I want to try with my own classes in java.. I want to define
>> class
>> > and call it from go. *
>> > *Can you please suggest, in that case how to build with gomobile ?*
>> >
>>
>> I think you can use the -classpath option to gomobile.
>>
>> -- elias
>>
>
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