Library issue #159

arieavnur · 2023-04-14T18:35:35Z

arieavnur
Apr 14, 2023

I greatly appreciate this project. Its time for a Java GPIO library. However, trying to use it, I get an exception:

Exception in thread "main" java.lang.UnsatisfiedLinkError: 'com.diozero.internal.provider.builtin.gpio.GpioChip com.diozero.internal.provider.builtin.gpio.NativeGpioDevice.openChip(java.lang.String)'

A bunch of ".so" native libraries are under a resources directory, and still, it looks at /lib, and should search at /lib/linux-aarch64/.
I realize that this is a "beginner" issue, but I didn't see any installation script or something like that for copying those libraries.
Confused.
Any hint?
Thanks in advance.
Arie.

EAGrahamJr · 2023-04-14T22:10:04Z

EAGrahamJr
Apr 14, 2023

Might be able to help...

Are you attempting to build/use this project on Windows or desktop Linux?
- There are no GPIO chips for desktop systems
- You can use the remote options from https://www.diozero.com/concepts/remotecontrol.html
Are you using the library "as-is" (e.g. as a Maven/Gradle dependency?)
- If so, what do the dependency declarations look like?
Are you using a git clone of the project?
- If so, what command are you trying to build with?
- How is this being used in your project?

0 replies

arieavnur · 2023-04-16T00:13:02Z

arieavnur
Apr 16, 2023
Author

Thanks for the reply!! This is a Raspberry Pi 4 project, Debian, 64 bit. I Build with IdeaJ, and run the generated jar files on the RPI through SSH. IdeaJ runs very slow on RPI. So the library files (*.so) are still in the distribution directory, I didn’t find any instruction to copy them or install diozero. After I started to run the code and ran into the exception, I copied on library file to /bin/linux-aarch64, as the exception reported that diozero looks there of it. But I continue to get exceptions. I don’t use Maven. Strictly source built by IdeaJ. I didn’t clone from GitHub, I downloaded the zip file. Any difference? Thanks for any help. Arie.

…

On Apr 14, 2023, at 3:10 PM, E. A. (Ed) Graham, Jr. ***@***.***> wrote: Might be able to help... Are you attempting to build/use this project on Windows or desktop Linux? There are no GPIO chips for desktop systems You can use the remote options from https://www.diozero.com/concepts/remotecontrol.html <https://www.diozero.com/concepts/remotecontrol.html> Are you using the library "as-is" (e.g. as a Maven/Gradle dependency?) If so, what do the dependency declarations look like? Are you using a git clone of the project? If so, what command are you trying to build with? How is this being used in your project? — Reply to this email directly, view it on GitHub <#159 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACHWSYVR4ROWIFDLMJCLVMLXBHDMNANCNFSM6AAAAAAW6YPTRM>. You are receiving this because you authored the thread.

2 replies

EAGrahamJr Apr 16, 2023

That's part of the problem - the Maven builds (which IDEA should handle just fine) bundle the .so files in with the JAR files, whereas "just building" via IDEA won't produce the same thing.

Just make sure that you have the Maven plugin enabled in IDEA, then execute the Maven targets "clean, install" in the base project and it should produce the correct JAR to include with your project.

I really would suggest learning about dependency management and builds - this will save you many hours of grief. I personally use Gradle, but Maven might be easier to start with.

mattjlewis Apr 17, 2023
Maintainer

Which ZIP file? The bin.zip referenced in the docs on diozero.com?
Did you download version 1.3.5?
Trying to get a clear picture of your steps here - as stated by EAGrahamJr, ideally you would use Maven or Gradle to manage the dependencies for you.
Regardless, assuming you have manually added all dependencies the library will be automatically loaded for you from within the diozero-core JAR file itself.
It could be that you are missing the gpio chardev library that diozero requires (it is normally installed by default).
Please run:

sudo apt update
sudo apt -y install i2c-tools libi2c-dev gpiod libgpiod2 libgpiod-dev libpigpiod-if-dev libpigpiod-if2-1

arieavnur · 2023-04-17T16:47:16Z

arieavnur
Apr 17, 2023
Author

Thank you again Matthew, I did run the installation script bellow, and still get the exception: 2023-04-17 09:35:10 [main] com.diozero.sbc.DeviceFactoryHelper.initialise() DEBUG: Using native device factory class DefaultDeviceFactory 2023-04-17 09:35:10 [main] com.diozero.internal.provider.builtin.DefaultDeviceFactory.start() DEBUG: Using chardev GPIO implementation 2023-04-17 09:35:10 [main] com.diozero.util.LibraryLoader.loadLibrary() DEBUG: Looking for lib '/lib/linux-aarch64/libdiozero-system-utils.so' on classpath 2023-04-17 09:35:10 [main] com.diozero.util.LibraryLoader.loadLibrary() DEBUG: Looking for lib 'diozero-system-utils' on library path 2023-04-17 09:35:10 [main] com.diozero.util.LibraryLoader.loadLibrary() ERROR: Error loading library 'diozero-system-utils' from system library path: java.lang.UnsatisfiedLinkError: no diozero-system-utils in java.library.path: /usr/java/packages/lib:/usr/lib64:/lib64:/lib:/usr/lib Exception in thread "main" java.lang.UnsatisfiedLinkError: 'com.diozero.internal.provider.builtin.gpio.GpioChip com.diozero.internal.provider.builtin.gpio.NativeGpioDevice.openChip(java.lang.String)' at com.diozero.internal.provider.builtin.gpio.NativeGpioDevice.openChip(Native Method) at com.diozero.internal.provider.builtin.gpio.GpioChip.lambda$openAllChips$1(GpioChip.java:65) at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179) at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133) at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1845) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682) at com.diozero.internal.provider.builtin.gpio.GpioChip.openAllChips(GpioChip.java:67) at com.diozero.internal.provider.builtin.DefaultDeviceFactory.start(DefaultDeviceFactory.java:108) at com.diozero.sbc.DeviceFactoryHelper.initialise(DeviceFactoryHelper.java:86) at com.diozero.sbc.DeviceFactoryHelper.getNativeDeviceFactory(DeviceFactoryHelper.java:108) at com.diozero.api.DigitalInputDevice.<init>(DigitalInputDevice.java:147) at com.diozero.devices.Button.<init>(Button.java:183) at com.aaswdev.sw.keysys.platform.components.Switch.<init>(Switch.java:103) at com.aaswdev.sw.keysys.platform.components.Switch.create(Switch.java:74) at com.aaswdev.sw.test.TestGpio.main(TestGpio.java:70) ^ Arie.

…

On Apr 17, 2023, at 5:11 AM, Matthew Lewis ***@***.***> wrote: Which ZIP file? The bin.zip <https://search.maven.org/remotecontent?filepath=com/diozero/diozero-distribution/1.3.5/diozero-distribution-1.3.5-bin.zip> referenced in the docs on diozero.com? Did you download version 1.3.5? Trying to get a clear picture of your steps here - as stated by EAGrahamJr, ideally you would use Maven or Gradle to manage the dependencies for you. Regardless, assuming you have manually added all dependencies the library will be automatically loaded for you from within the diozero-core JAR file itself. It could be that you are missing the gpio chardev library that diozero requires (it is normally installed by default). Please run: sudo apt update sudo apt -y install i2c-tools libi2c-dev gpiod libgpiod2 libgpiod-dev libpigpiod-if-dev libpigpiod-if2-1 — Reply to this email directly, view it on GitHub <#159 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACHWSYUFW4CYVJGI3QUBAATXBUXPTANCNFSM6AAAAAAW6YPTRM>. You are receiving this because you authored the thread.

0 replies

arieavnur · 2023-04-17T16:52:23Z

arieavnur
Apr 17, 2023
Author

Sorry, forgot to mention: The last three lines of the exception report are my code trying to construct my switch device based on your button; I could have used the DigitalInputDevice directly, I know, but it would have caused the same exception.

…

On Apr 17, 2023, at 9:47 AM, Arie Avnur ***@***.***> wrote: Thank you again Matthew, I did run the installation script bellow, and still get the exception: 2023-04-17 09:35:10 [main] com.diozero.sbc.DeviceFactoryHelper.initialise() DEBUG: Using native device factory class DefaultDeviceFactory 2023-04-17 09:35:10 [main] com.diozero.internal.provider.builtin.DefaultDeviceFactory.start() DEBUG: Using chardev GPIO implementation 2023-04-17 09:35:10 [main] com.diozero.util.LibraryLoader.loadLibrary() DEBUG: Looking for lib '/lib/linux-aarch64/libdiozero-system-utils.so' on classpath 2023-04-17 09:35:10 [main] com.diozero.util.LibraryLoader.loadLibrary() DEBUG: Looking for lib 'diozero-system-utils' on library path 2023-04-17 09:35:10 [main] com.diozero.util.LibraryLoader.loadLibrary() ERROR: Error loading library 'diozero-system-utils' from system library path: java.lang.UnsatisfiedLinkError: no diozero-system-utils in java.library.path: /usr/java/packages/lib:/usr/lib64:/lib64:/lib:/usr/lib Exception in thread "main" java.lang.UnsatisfiedLinkError: 'com.diozero.internal.provider.builtin.gpio.GpioChip com.diozero.internal.provider.builtin.gpio.NativeGpioDevice.openChip(java.lang.String)' at com.diozero.internal.provider.builtin.gpio.NativeGpioDevice.openChip(Native Method) at com.diozero.internal.provider.builtin.gpio.GpioChip.lambda$openAllChips$1(GpioChip.java:65) at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179) at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133) at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1845) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682) at com.diozero.internal.provider.builtin.gpio.GpioChip.openAllChips(GpioChip.java:67) at com.diozero.internal.provider.builtin.DefaultDeviceFactory.start(DefaultDeviceFactory.java:108) at com.diozero.sbc.DeviceFactoryHelper.initialise(DeviceFactoryHelper.java:86) at com.diozero.sbc.DeviceFactoryHelper.getNativeDeviceFactory(DeviceFactoryHelper.java:108) at com.diozero.api.DigitalInputDevice.<init>(DigitalInputDevice.java:147) at com.diozero.devices.Button.<init>(Button.java:183) at com.aaswdev.sw.keysys.platform.components.Switch.<init>(Switch.java:103) at com.aaswdev.sw.keysys.platform.components.Switch.create(Switch.java:74) at com.aaswdev.sw.test.TestGpio.main(TestGpio.java:70) ^ Arie. > On Apr 17, 2023, at 5:11 AM, Matthew Lewis ***@***.*** ***@***.***>> wrote: > > > Which ZIP file? The bin.zip <https://search.maven.org/remotecontent?filepath=com/diozero/diozero-distribution/1.3.5/diozero-distribution-1.3.5-bin.zip> referenced in the docs on diozero.com <http://diozero.com/>? > Did you download version 1.3.5? > Trying to get a clear picture of your steps here - as stated by EAGrahamJr, ideally you would use Maven or Gradle to manage the dependencies for you. > Regardless, assuming you have manually added all dependencies the library will be automatically loaded for you from within the diozero-core JAR file itself. > It could be that you are missing the gpio chardev library that diozero requires (it is normally installed by default). > Please run: > > sudo apt update > sudo apt -y install i2c-tools libi2c-dev gpiod libgpiod2 libgpiod-dev libpigpiod-if-dev libpigpiod-if2-1 > — > Reply to this email directly, view it on GitHub <#159 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACHWSYUFW4CYVJGI3QUBAATXBUXPTANCNFSM6AAAAAAW6YPTRM>. > You are receiving this because you authored the thread. >

0 replies

mattjlewis · 2023-04-18T07:30:38Z

mattjlewis
Apr 18, 2023
Maintainer

Can you run these commands for me please (renaming the diozero-core JAR file name to match yours).

uname -m
dpkg --print-architecture
grep arm_64 /boot/config.txt
java -cp diozero-core-1.3.5.jar com.diozero.sbc.LocalSystemInfo

0 replies

arieavnur · 2023-04-18T18:23:36Z

arieavnur
Apr 18, 2023
Author

Sure, thanks: bc.LocalSystemInfo System properties: java.specification.version: 18 sun.jnu.encoding: UTF-8 java.class.path: diozero-core-1.3.5.jar java.vm.vendor: Oracle Corporation sun.arch.data.model: 64 java.vendor.url: https://java.oracle.com/ <https://java.oracle.com/> java.vm.specification.version: 18 os.name: Linux sun.java.launcher: SUN_STANDARD user.country: US sun.boot.library.path: /opt/java/jdk-18.0.2.1/lib sun.java.command: com.diozero.sbc.LocalSystemInfo jdk.debug: release sun.cpu.endian: little user.home: /home/arha user.language: en sun.stderr.encoding: UTF-8 java.specification.vendor: Oracle Corporation java.version.date: 2022-08-18 java.home: /opt/java/jdk-18.0.2.1 file.separator: / java.vm.compressedOopsMode: 32-bit line.separator: sun.stdout.encoding: UTF-8 java.vm.specification.vendor: Oracle Corporation java.specification.name: Java Platform API Specification sun.management.compiler: HotSpot 64-Bit Tiered Compilers java.runtime.version: 18.0.2.1+1-1 user.name: arha path.separator: : os.version: 5.15.84-v8+ java.runtime.name: OpenJDK Runtime Environment file.encoding: UTF-8 java.vm.name: OpenJDK 64-Bit Server VM java.vendor.url.bug: https://bugreport.java.com/bugreport/ <https://bugreport.java.com/bugreport/> java.io.tmpdir: /tmp java.version: 18.0.2.1 user.dir: /home/arha/Projects/KeyGpio2/diozero-distribution-1.3.5 os.arch: aarch64 java.vm.specification.name: Java Virtual Machine Specification native.encoding: UTF-8 java.library.path: /usr/java/packages/lib:/usr/lib64:/lib64:/lib:/usr/lib java.vm.info <http://java.vm.info/>: mixed mode, sharing java.vendor: Oracle Corporation java.vm.version: 18.0.2.1+1-1 sun.io.unicode.encoding: UnicodeLittle java.class.version: 62.0 macOS? false, Linux? true, Windows? false debian version 11 (bullseye) CPU Temperature: 35.537

…

On Apr 18, 2023, at 12:30 AM, Matthew Lewis ***@***.*** ***@***.***>> wrote: Can you run this command for me please (renaming the diozero-core JAR file name to match yours). java cp diozero-core-1.3.5.jar com.diozero.sbc.LocalSystemInfo — Reply to this email directly, view it on GitHub <#159 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACHWSYUSZR3EGD7TQ62LGW3XBY7KRANCNFSM6AAAAAAW6YPTRM>. You are receiving this because you authored the thread.

0 replies

arieavnur · 2023-04-18T23:54:49Z

arieavnur
Apr 18, 2023
Author

Hi Matthew, I looked again, closer, and found out that it was loading the wrong utils library, AMD instead of AARCH64. Copied the other lib file to /lib64, and now I get another exception: java.lang.NullPointerException: inStream parameter is null at java.base/java.util.Objects.requireNonNull(Objects.java:233) at java.base/java.util.Properties.load(Properties.java:408) at com.diozero.internal.board.GenericLinuxArmBoardInfo.<init>(GenericLinuxArmBoardInfo.java:83) at com.diozero.internal.board.GenericLinuxArmBoardInfo.<init>(GenericLinuxArmBoardInfo.java:69) at com.diozero.internal.board.GenericLinuxArmBoardInfo.<init>(GenericLinuxArmBoardInfo.java:65) at com.diozero.sbc.UnknownBoardInfo.get(UnknownBoardInfo.java:52) at com.diozero.sbc.LocalBoardInfoUtil.lambda$resolveLocalBoardInfo$1(LocalBoardInfoUtil.java:73) at java.base/java.util.Optional.orElseGet(Optional.java:364) at com.diozero.sbc.LocalBoardInfoUtil.resolveLocalBoardInfo(LocalBoardInfoUtil.java:73) at com.diozero.sbc.LocalBoardInfoUtil.initialiseLocalBoardInfo(LocalBoardInfoUtil.java:63) at com.diozero.sbc.LocalBoardInfoUtil.lookupLocalBoardInfo(LocalBoardInfoUtil.java:85) at com.diozero.internal.spi.BaseNativeDeviceFactory.lookupBoardInfo(BaseNativeDeviceFactory.java:70) at com.diozero.internal.spi.BaseNativeDeviceFactory.getBoardInfo(BaseNativeDeviceFactory.java:79) at com.diozero.internal.provider.builtin.DefaultDeviceFactory.start(DefaultDeviceFactory.java:113) at com.diozero.sbc.DeviceFactoryHelper.initialise(DeviceFactoryHelper.java:86) at com.diozero.sbc.DeviceFactoryHelper.getNativeDeviceFactory(DeviceFactoryHelper.java:108) at com.diozero.api.DigitalInputDevice.<init>(DigitalInputDevice.java:147) at com.aaswdev.sw.keysys.platform.components.Switch.<init>(Switch.java:104) at com.aaswdev.sw.keysys.platform.components.Switch.create(Switch.java:75) at com.aaswdev.sw.test.TestGpio.main(TestGpio.java:70) It looks like it can’t find the file /soc_mapping.properties I found it in the source distribution, should I really copy it to the rood directory? Is that correct? Thanks again, Arie.

…

On Apr 18, 2023, at 11:23 AM, Arie Avnur ***@***.*** ***@***.***>> wrote: Sure, thanks: bc.LocalSystemInfo System properties: java.specification.version: 18 sun.jnu.encoding: UTF-8 java.class.path: diozero-core-1.3.5.jar java.vm.vendor: Oracle Corporation sun.arch.data.model: 64 java.vendor.url: https://java.oracle.com/ <https://java.oracle.com/> java.vm.specification.version: 18 os.name: Linux sun.java.launcher: SUN_STANDARD user.country: US sun.boot.library.path: /opt/java/jdk-18.0.2.1/lib sun.java.command: com.diozero.sbc.LocalSystemInfo jdk.debug: release sun.cpu.endian: little user.home: /home/arha user.language: en sun.stderr.encoding: UTF-8 java.specification.vendor: Oracle Corporation java.version.date: 2022-08-18 java.home: /opt/java/jdk-18.0.2.1 file.separator: / java.vm.compressedOopsMode: 32-bit line.separator: sun.stdout.encoding: UTF-8 java.vm.specification.vendor: Oracle Corporation java.specification.name: Java Platform API Specification sun.management.compiler: HotSpot 64-Bit Tiered Compilers java.runtime.version: 18.0.2.1+1-1 user.name: arha path.separator: : os.version: 5.15.84-v8+ java.runtime.name: OpenJDK Runtime Environment file.encoding: UTF-8 java.vm.name: OpenJDK 64-Bit Server VM java.vendor.url.bug: https://bugreport.java.com/bugreport/ <https://bugreport.java.com/bugreport/> java.io.tmpdir: /tmp java.version: 18.0.2.1 user.dir: /home/arha/Projects/KeyGpio2/diozero-distribution-1.3.5 os.arch: aarch64 java.vm.specification.name: Java Virtual Machine Specification native.encoding: UTF-8 java.library.path: /usr/java/packages/lib:/usr/lib64:/lib64:/lib:/usr/lib java.vm.info <http://java.vm.info/>: mixed mode, sharing java.vendor: Oracle Corporation java.vm.version: 18.0.2.1+1-1 sun.io.unicode.encoding: UnicodeLittle java.class.version: 62.0 macOS? false, Linux? true, Windows? false debian version 11 (bullseye) CPU Temperature: 35.537 > On Apr 18, 2023, at 12:30 AM, Matthew Lewis ***@***.*** ***@***.***>> wrote: > > > Can you run this command for me please (renaming the diozero-core JAR file name to match yours). > > java cp diozero-core-1.3.5.jar com.diozero.sbc.LocalSystemInfo > — > Reply to this email directly, view it on GitHub <#159 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACHWSYUSZR3EGD7TQ62LGW3XBY7KRANCNFSM6AAAAAAW6YPTRM>. > You are receiving this because you authored the thread. >

0 replies

arieavnur · 2023-04-20T21:30:39Z

arieavnur
Apr 20, 2023
Author

Hi Matt, I hope you can have a bit more patience with me. Now, I can’t find diozero-sampleapps-1.3.5.jar. Nohere, not on GitHub, not on your diozero site, nor from the jar-download site where I found the rest of the diozero jars…. Arie.

…

On Apr 18, 2023, at 12:30 AM, Matthew Lewis ***@***.*** ***@***.***>> wrote: Can you run this command for me please (renaming the diozero-core JAR file name to match yours). java cp diozero-core-1.3.5.jar com.diozero.sbc.LocalSystemInfo — Reply to this email directly, view it on GitHub <#159 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACHWSYUSZR3EGD7TQ62LGW3XBY7KRANCNFSM6AAAAAAW6YPTRM>. You are receiving this because you authored the thread.

1 reply

mattjlewis Feb 7, 2024
Maintainer

I think the problem is with your build tool chain. Maven / Gradle really is the answer.

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Library issue #159

{{title}}

Replies: 8 comments 3 replies

{{title}}

{{title}}

{{title}}

{{title}}

{{title}}

{{title}}

{{title}}

{{editor}}'s edit

{{editor}}'s edit

{{title}}

{{title}}

{{title}}

{{title}}

Select a reply

Library issue #159

arieavnur Apr 14, 2023

Replies: 8 comments · 3 replies

EAGrahamJr Apr 14, 2023

arieavnur Apr 16, 2023 Author

EAGrahamJr Apr 16, 2023

mattjlewis Apr 17, 2023 Maintainer

arieavnur Apr 17, 2023 Author

arieavnur Apr 17, 2023 Author

mattjlewis Apr 18, 2023 Maintainer

arieavnur Apr 18, 2023 Author

arieavnur Apr 18, 2023 Author

arieavnur Apr 20, 2023 Author

mattjlewis Feb 7, 2024 Maintainer

arieavnur
Apr 14, 2023

Replies: 8 comments 3 replies

EAGrahamJr
Apr 14, 2023

arieavnur
Apr 16, 2023
Author

mattjlewis Apr 17, 2023
Maintainer

arieavnur
Apr 17, 2023
Author

arieavnur
Apr 17, 2023
Author

mattjlewis
Apr 18, 2023
Maintainer

arieavnur
Apr 18, 2023
Author

arieavnur
Apr 18, 2023
Author

arieavnur
Apr 20, 2023
Author

mattjlewis Feb 7, 2024
Maintainer