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How to import in Eclipse com.microsoft.azure.sdk.iot.device jar [message #1793451]

Wed, 08 August 2018 15:02

giuseppe ferro

Messages: 25
Registered: August 2016

Junior Member

Hi all,

i wasn't able to build deployment package of my eclipse kura bundle, because of this follwing error:

# 8/8/18 4:38:14 PM CEST
# Eclipse Compiler for Java(TM) v20180330-0919, 3.13.102, Copyright IBM Corp 2000, 2015. All rights reserved.
ERROR in C:\Users\...\..\..\..\...\example.java
import com.microsoft.azure.sdk.iot.device.DeviceClient;
^^^^^^^^^^^^^
The import com.microsoft cannot be resolved

I have imported and added in the build path all necessary jar libs for use
DeviceClient;IotHubClientProtocol;IotHubEventCallback;IotHubStatusCode; classes.

import com.microsoft.azure.sdk.iot.device.DeviceClient;
import com.microsoft.azure.sdk.iot.device.IotHubClientProtocol;
import com.microsoft.azure.sdk.iot.device.IotHubEventCallback;
import com.microsoft.azure.sdk.iot.device.IotHubStatusCode;

I have no error in example.java compilation but i cant't build and generate the example.dp from example.dpp.

Thanks in advance
Giuseppe

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Re: How to import in Eclipse com.microsoft.azure.sdk.iot.device jar [message #1793574 is a reply to message #1793451]

Fri, 10 August 2018 12:33

shubh wade

Messages: 12
Registered: July 2018

Junior Member

Hello

create lib folder in ur project and copy whichever jar you want and give path in manifest and build.properties file.

Like in menifest file.
Bundle-ClassPath: .,
lib/pi4j-core.jar

And build.properties file.

bin.includes = META-INF/,\
.,\
OSGI-INF/component.xml,\
lib/pi4j-core.jar

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Re: How to import in Eclipse com.microsoft.azure.sdk.iot.device jar [message #1793581 is a reply to message #1793574]

Fri, 10 August 2018 13:36

giuseppe ferro

Messages: 25
Registered: August 2016

Junior Member

Hello,

thanks for your reply.

I have follwed your suggest.
Now I'm able to deploy kura bundle (example.dp)

I use kura 3.2.0 nonet for beaglebone black.
I have update config.ini file (/ot/eclipse/kura/kura/) -> added all new jar lib for example:

....reference\:file\:/root/kura_plugins_custom/iot-deps-0.6.1.jar@5\:start,reference\:file\:/root/kura_plugins_custom/iot-device-client-1.13.1.jar@5\:start,...

restart kura

When i install bundle i have a lot of errors like this: (/var/log/kura-console.log)

!STACK 0
java.lang.ClassNotFoundException: org.example.example.Example cannot be found by org.example.example_1.1.0
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:461)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:372)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:364)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:161)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at org.eclipse.osgi.internal.framework.EquinoxBundle.loadClass(EquinoxBundle.java:564)
at org.eclipse.equinox.internal.ds.model.ServiceComponent.createInstance(ServiceComponent.java:493)
at org.eclipse.equinox.internal.ds.model.ServiceComponentProp.createInstance(ServiceComponentProp.java:270)
at org.eclipse.equinox.internal.ds.model.ServiceComponentProp.build(ServiceComponentProp.java:331)
at org.eclipse.equinox.internal.ds.InstanceProcess.buildComponent(InstanceProcess.java:620)
at org.eclipse.equinox.internal.ds.InstanceProcess.buildComponents(InstanceProcess.java:197)
at org.eclipse.equinox.internal.ds.Resolver.buildNewlySatisfied(Resolver.java:473)
at org.eclipse.equinox.internal.ds.Resolver.enableComponents(Resolver.java:217)
at org.eclipse.equinox.internal.ds.SCRManager.performWork(SCRManager.java:816)
at org.eclipse.equinox.internal.ds.SCRManager$QueuedJob.dispatch(SCRManager.java:783)
at org.eclipse.equinox.internal.ds.WorkThread.run(WorkThread.java:89)
at org.eclipse.equinox.internal.util.impl.tpt.threadpool.Executor.run(Executor.java:70)

Any other suggestions?
Thanks in advance
Giuseppe

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Re: How to import in Eclipse com.microsoft.azure.sdk.iot.device jar [message #1793638 is a reply to message #1793581]

Mon, 13 August 2018 05:17

shubh wade

Messages: 12
Registered: July 2018

Junior Member

Hello

Confirm once you have correctly added jar file path in manifest and build.properties file.Because this approach should be work. ClassNotFoundException mainly occurs when program could not find jar file or its class.
And I think No any need to change config.ini file.
just added path as i mention and deploy the dp file on kura.

[Updated on: Tue, 14 August 2018 07:29]

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Re: How to import in Eclipse com.microsoft.azure.sdk.iot.device jar [message #1793907 is a reply to message #1793638]

Mon, 20 August 2018 08:56

giuseppe ferro

Messages: 25
Registered: August 2016

Junior Member

Hello,

this is my MANIFEST build.properties:

output.. = target/classes/
bin.includes = META-INF/,\
OSGI-INF/,\
about.html,\
about_files/,\
lib_new/azure-storage-2.2.0.jar,\
lib_new/bcmail-jdk15on-1.53.jar,\
lib_new/bcpkix-jdk15on-1.53.jar,\
lib_new/bcprov-jdk15on-1.53.jar,\
lib_new/iot-deps-0.6.1.jar,\
lib_new/iot-device-client-1.13.1.jar,\
lib_new/security-provider-1.1.0.jar
additional.bundles = org.eclipse.osgi,\
org.eclipse.osgi.services,\
org.eclipse.osgi.util,\
org.eclipse.kura.api,\
slf4j.api
src.includes = about.html,\
about_files/
jre.compilation.profile = JavaSE-1.8

I was able to build the dp file in eclipse but when I deploy the dp file, i have always the java.lang.ClassNotFoundException
I have tried with and without modify config.ini

Thanks for help

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Re: How to import in Eclipse com.microsoft.azure.sdk.iot.device jar [message #1794133 is a reply to message #1793907]

Fri, 24 August 2018 08:31

Matteo Maiero

Messages: 263
Registered: July 2015
Location: Italy

Senior Member

Hi,
the approach suggested by shubh wade seems correct. Maybe to double check that you have done correctly all the referencing, please compare to the way it was done for the Google Protobuf: https://github.com/eclipse/kura/tree/develop/kura/org.eclipse.kura.core.cloud

But the error I see seems more related to your wrapping code. So, double check that the final jar is correct and contains all the required classes.

Best regards,
Matteo

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