resolve the issue of java.lang.NullPointerException in springboot jar

[huazai023]

When using zenoh java jvm in springboot jar, the following error occurred：

java.lang.Exception: Unable to load Zenoh JNI: java.lang.NullPointerException
at io.zenoh.Zenoh$Companion.tryLoadingLibraryFromJarPackage-IoAF18A(Zenoh.kt:137)
at io.zenoh.Zenoh$Companion.access$tryLoadingLibraryFromJarPackage-IoAF18A(Zenoh.kt:29)
at io.zenoh.Zenoh.(Zenoh.kt:161)
at io.zenoh.Zenoh.(Zenoh.kt)
at io.zenoh.Zenoh$Companion.load(Zenoh.kt:36)
at io.zenoh.Session.(Session.kt:90)
at io.zenoh.Session.(Session.kt)
at io.zenoh.Session$Companion.open(Session.kt:70)
at io.zenoh.Session.open(Session.kt)
at com.kernelsoft.zenoh.handler.ZenohSubHandler.subKey(ZenohSubHandler.java:64)
at com.kernelsoft.zenoh.handler.ZenohSubHandler.lambda$startZenohSub$0(ZenohSubHandler.java:48)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:833)

[github-actions]

PR missing one of the required labels: {'documentation', 'new feature', 'enhancement', 'internal', 'bug', 'breaking-change', 'dependencies'}

[DariusIMP]

LGTM

Let me further investigate this, because this solution has caused the native lib to fail to be loaded from external projects. Let's postpone the merge.

[Wjun-1]

@huazai023 Hello, how did you integrate Zenoh into SpringBoot?

[huazai023]

@huazai023 Hello, how did you integrate Zenoh into SpringBoot?

Add the following dependencies in POM
<dependency> <groupId>io.zenoh</groupId> <artifactId>zenoh-java-jvm</artifactId> <version>1.0.0-beta.1</version> <exclusions> <exclusion> <groupId>org.jetbrains.kotlinx</groupId> <artifactId>kotlinx-serialization-json-jvm</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.jetbrains.kotlin</groupId> <artifactId>kotlin-stdlib</artifactId> <version>2.0.0</version>

There is a bug in the current version 1.0.0-beta. 1, please rely on the latest version

[Wjun-1]

@huazai023 Hello, how did you integrate Zenoh into SpringBoot?

Add the following dependencies in POM <dependency> <groupId>io.zenoh</groupId> <artifactId>zenoh-java-jvm</artifactId> <version>1.0.0-beta.1</version> <exclusions> <exclusion> <groupId>org.jetbrains.kotlinx</groupId> <artifactId>kotlinx-serialization-json-jvm</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.jetbrains.kotlin</groupId> <artifactId>kotlin-stdlib</artifactId> <version>2.0.0</version>

There is a bug in the current version 1.0.0-beta. 1, please rely on the latest version

Thanks, are you using maven? Is the imported package from my picture here

[huazai023]

@huazai023 Hello, how did you integrate Zenoh into SpringBoot?您好，您是如何将 Zenoh 集成到 SpringBoot 中的？

Add the following dependencies in POM <dependency> <groupId>io.zenoh</groupId> <artifactId>zenoh-java-jvm</artifactId> <version>1.0.0-beta.1</version> <exclusions> <exclusion> <groupId>org.jetbrains.kotlinx</groupId> <artifactId>kotlinx-serialization-json-jvm</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.jetbrains.kotlin</groupId> <artifactId>kotlin-stdlib</artifactId> <version>2.0.0</version>在 POM <dependency> <groupId>io.zenoh</groupId> <artifactId>zenoh-java-jvm</artifactId> <version>1.0.0-beta.1</version> <exclusions> <exclusion> <groupId>org.jetbrains.kotlinx</groupId> <artifactId>kotlinx-serialization-json-jvm</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.jetbrains.kotlin</groupId> <artifactId>kotlin-stdlib</artifactId> <version>2.0.0</version> 中添加以下依赖项
There is a bug in the current version 1.0.0-beta. 1, please rely on the latest version当前版本 1.0.0-beta 中存在一个错误。1、请依赖最新版本

Thanks, are you using maven? Is the imported package from my picture here谢谢，您在使用 maven 吗？是从我的图片导入的包吗

yes

[Wjun-1]

您好，您是如何将 Zenoh 集成到 SpringBoot 中的？您好，您是如何将 Zenoh 集成到 SpringBoot 中的？

在 POM 中添加以下依赖项 POM 中添加以下依赖项 There is a bug in the current version 1.0.0-beta.1、请依赖最新版本当前版本 1.0.0-beta 中存在一个错误。1、请依赖最新版本<dependency> <groupId>io.zenoh</groupId> <artifactId>zenoh-java-jvm</artifactId> <version>1.0.0-beta.1</version> <exclusions> <exclusion> <groupId>org.jetbrains.kotlinx</groupId> <artifactId>kotlinx-serialization-json-jvm</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.jetbrains.kotlin</groupId> <artifactId>kotlin-stdlib</artifactId> <version>2.0.0</version>``<dependency> <groupId>io.zenoh</groupId> <artifactId>zenoh-java-jvm</artifactId> <version>1.0.0-beta.1</version> <exclusions> <exclusion> <groupId>org.jetbrains.kotlinx</groupId> <artifactId>kotlinx-serialization-json-jvm</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.jetbrains.kotlin</groupId> <artifactId>kotlin-stdlib</artifactId> <version>2.0.0</version>

谢谢，您在使用 maven 吗？是从我图片导入的包在这里谢谢，您在使用 maven 吗？是从我的图片导入的包吗

是的

thanks

[Wjun-1]

When using zenoh java jvm in springboot jar, the following error occurred：

java.lang.Exception: Unable to load Zenoh JNI: java.lang.NullPointerException at io.zenoh.Zenoh$Companion.tryLoadingLibraryFromJarPackage-IoAF18A(Zenoh.kt:137) at io.zenoh.Zenoh$Companion.access$tryLoadingLibraryFromJarPackage-IoAF18A(Zenoh.kt:29) at io.zenoh.Zenoh.(Zenoh.kt:161) at io.zenoh.Zenoh.(Zenoh.kt) at io.zenoh.Zenoh$Companion.load(Zenoh.kt:36) at io.zenoh.Session.(Session.kt:90) at io.zenoh.Session.(Session.kt) at io.zenoh.Session$Companion.open(Session.kt:70) at io.zenoh.Session.open(Session.kt) at com.kernelsoft.zenoh.handler.ZenohSubHandler.subKey(ZenohSubHandler.java:64) at com.kernelsoft.zenoh.handler.ZenohSubHandler.lambda$startZenohSub$0(ZenohSubHandler.java:48) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:833)

Excuse me, after you import the zenoh-java package, do you use a json file as a configuration file to configure the mode, multicast address, those parameters, like the line of my picture annotation to get the config variable and put it in Session.open()?

[huazai023]

When using zenoh java jvm in springboot jar, the following error occurred：
java.lang.Exception: Unable to load Zenoh JNI: java.lang.NullPointerException at io.zenoh.Zenoh$Companion.tryLoadingLibraryFromJarPackage-IoAF18A(Zenoh.kt:137) at io.zenoh.Zenoh$Companion.access$tryLoadingLibraryFromJarPackage-IoAF18A(Zenoh.kt:29) at io.zenoh.Zenoh.(Zenoh.kt:161) at io.zenoh.Zenoh.(Zenoh.kt) at io.zenoh.Zenoh$Companion.load(Zenoh.kt:36) at io.zenoh.Session.(Session.kt:90) at io.zenoh.Session.(Session.kt) at io.zenoh.Session$Companion.open(Session.kt:70) at io.zenoh.Session.open(Session.kt) at com.kernelsoft.zenoh.handler.ZenohSubHandler.subKey(ZenohSubHandler.java:64) at com.kernelsoft.zenoh.handler.ZenohSubHandler.lambda$startZenohSub$0(ZenohSubHandler.java:48) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:833)

Excuse me, after you import the zenoh-java package, do you use a json file as a configuration file to configure the mode, multicast address, those parameters, like the line of my picture annotation to get the config variable and put it in Session.open()?

My usage scenario is relatively simple, without any configuration

[Wjun-1]

When using zenoh java jvm in springboot jar, the following error occurred：
java.lang.Exception: Unable to load Zenoh JNI: java.lang.NullPointerException at io.zenoh.Zenoh$Companion.tryLoadingLibraryFromJarPackage-IoAF18A(Zenoh.kt:137) at io.zenoh.Zenoh$Companion.access$tryLoadingLibraryFromJarPackage-IoAF18A(Zenoh.kt:29) at io.zenoh.Zenoh.(Zenoh.kt:161) at io.zenoh.Zenoh.(Zenoh.kt) at io.zenoh.Zenoh$Companion.load(Zenoh.kt:36) at io.zenoh.Session.(Session.kt:90) at io.zenoh.Session.(Session.kt) at io.zenoh.Session$Companion.open(Session.kt:70) at io.zenoh.Session.open(Session.kt) at com.kernelsoft.zenoh.handler.ZenohSubHandler.subKey(ZenohSubHandler.java:64) at com.kernelsoft.zenoh.handler.ZenohSubHandler.lambda$startZenohSub$0(ZenohSubHandler.java:48) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:833)

Excuse me, after you import the zenoh-java package, do you use a json file as a configuration file to configure the mode, multicast address, those parameters, like the line of my picture annotation to get the config variable and put it in Session.open()?

My usage scenario is relatively simple, without any configuration

Thanks, is this bug solved?,I'm using springboot to type a jar package or report this error.,The reference is also the latest dependency.

[DariusIMP]

This issue should be fixed now by https://github.com/eclipse-zenoh/zenoh-java/pull/162/files.