Intermittently I am getting PiGpioException: PIGPIO ERROR: PI_INIT_FAILED;

[levancho]

Hi,
I am initializing actuator motor control using following code :

//creating digital config :
DigitalOutputConfigBuilder pin1Config = DigitalOutput.newConfigBuilder(this.pi4j)
.id(this.id+this.pin1)
.name(this.name+this.pin1)
.address(this.pin1)
.shutdown(DigitalState.LOW)
.initial(DigitalState.LOW)
.provider("pigpio-digital-output");

// creating pwm config :
PwmConfig pinPWMConfig = Pwm.newConfigBuilder(pi4j)
.id(this.id+this.pinPWM)
.name(this.name+this.pinPWM)
.address(this.pinPWM)
.pwmType(PwmType.HARDWARE)
.initial(0)
.shutdown(0)
.provider("pigpio-pwm")
.build();

check :

if(this.pi4j.hasIO(pin1Config.id())){
pin1out=this.pi4j.getIO(pin1Config.id());
}else {
pin1out = this.pi4j.create(pin1Config);
}
if(this.pi4j.hasIO(pinPWMConfig.id())){
pinPWMout=this.pi4j.getIO(pinPWMConfig.id());
}else {
pinPWMout = this.pi4j.create(pinPWMConfig);
}}

everything works fine, but I noticed that sometimes when I start the application, it throws exception @ line : pin1out = this.pi4j.create(pin1Config);
also I noticed that if I turn on the actuator motor , and then shutdown the application, upon restart, this error happened, sometimes, but not all the time..
is there a way to pinpoint what is going on?

exception is :
Caused by: java.lang.reflect.UndeclaredThrowableException at com.sun.proxy.$Proxy66.create(Unknown Source) at com.pi4j.context.Context.create(Context.java:317) at com.pi4j.internal.IOCreator.create(IOCreator.java:58) at com.pi4j.internal.IOCreator.create(IOCreator.java:96) at com.pi4j.internal.IOCreator.create(IOCreator.java:176) at io.solarspace.beans.PWMMotor.init(PWMMotor.java:67) at io.solarspace.beans.PWMMotor.<init>(PWMMotor.java:35) at io.solarspace.config.PiConfig.actuatorPWM(PiConfig.java:121) at io.solarspace.config.PiConfig$$EnhancerBySpringCGLIB$$aa5325f1.CGLIB$actuatorPWM$0(<generated>) at io.solarspace.config.PiConfig$$EnhancerBySpringCGLIB$$aa5325f1$$FastClassBySpringCGLIB$$41f28d1f.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244) at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:331) at io.solarspace.config.PiConfig$$EnhancerBySpringCGLIB$$aa5325f1.actuatorPWM(<generated>) 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:566) at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ... 55 more Caused by: java.lang.reflect.InvocationTargetException 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:566) at com.pi4j.provider.impl.ProviderProxyHandler.invoke(ProviderProxyHandler.java:100) ... 73 more Caused by: com.pi4j.library.pigpio.PiGpioException: PIGPIO ERROR: PI_INIT_FAILED; pigpio initialisation failed at com.pi4j.library.pigpio.impl.PiGpioBase.validateResult(PiGpioBase.java:263) at com.pi4j.library.pigpio.impl.PiGpioBase.validateResult(PiGpioBase.java:249) at com.pi4j.library.pigpio.impl.PiGpioNativeImpl.gpioInitialise(PiGpioNativeImpl.java:95) at com.pi4j.library.pigpio.PiGpio.initialize(PiGpio.java:146) at com.pi4j.plugin.pigpio.provider.gpio.digital.PiGpioDigitalOutputProviderImpl.create(PiGpioDigitalOutputProviderImpl.java:60) at com.pi4j.plugin.pigpio.provider.gpio.digital.PiGpioDigitalOutputProviderImpl.create(PiGpioDigitalOutputProviderImpl.java:41) ... 78 more