How to fix java.lang.​ClassNotFo​undExcepti​on: com.mathwo​rks.toolbo​x.javabuil​der.MWExce​ption?

I have a RESTful API project where I use Spring Boot Maven. I'm also processing in Matlab with a jar file. I converted this project to .jar file, but running it with java -jar demo.jar closes after running. I got some errors. However, since it was a restful API, it had to remain open so that I could access the APIs.

In VS Code Java: Java 11

Matlab: R2018a, JRE 1.8

Errors that are related to Matlab also, after java -jar demo.jar:

 
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2023-10-02 11:21:51.075 ERROR 11484 --- [           main] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'beso3D_PD': Lookup method resolution failed; nested exception is java.lang.IllegalStateException: Failed to introspect Class [peridynamics.Beso3D_PD] from ClassLoader [org.springframework.boot.loader.LaunchedURLClassLoader@1ed6993a]
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:298) ~[spring-beans-5.3.30.jar!/:5.3.30]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineConstructorsFromBeanPostProcessors(AbstractAutowireCapableBeanFactory.java:1302) ~[spring-beans-5.3.30.jar!/:5.3.30]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1219) ~[spring-beans-5.3.30.jar!/:5.3.30]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582) ~[spring-beans-5.3.30.jar!/:5.3.30]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.30.jar!/:5.3.30]
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.30.jar!/:5.3.30]
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.30.jar!/:5.3.30]
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.30.jar!/:5.3.30]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.30.jar!/:5.3.30]
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:955) ~[spring-beans-5.3.30.jar!/:5.3.30]
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:921) ~[spring-context-5.3.30.jar!/:5.3.30]
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.30.jar!/:5.3.30]
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147) ~[spring-boot-2.7.16.jar!/:2.7.16]
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:731) ~[spring-boot-2.7.16.jar!/:2.7.16]
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408) ~[spring-boot-2.7.16.jar!/:2.7.16]        
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) ~[spring-boot-2.7.16.jar!/:2.7.16]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1303) ~[spring-boot-2.7.16.jar!/:2.7.16]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1292) ~[spring-boot-2.7.16.jar!/:2.7.16]
        at peridynamics.demoApp.main(demoApp.java:11) ~[classes!/:0.0.1-SNAPSHOT]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
        at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:49) ~[demo1-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]       
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:108) ~[demo1-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:58) ~[demo1-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
        at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:65) ~[demo1-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
Caused by: java.lang.IllegalStateException: Failed to introspect Class [peridynamics.Beso3D_PD] from ClassLoader [org.springframework.boot.loader.LaunchedURLClassLoader@1ed6993a]
        at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:485) ~[spring-core-5.3.30.jar!/:5.3.30]
        at org.springframework.util.ReflectionUtils.doWithLocalMethods(ReflectionUtils.java:321) ~[spring-core-5.3.30.jar!/:5.3.30]
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:276) ~[spring-beans-5.3.30.jar!/:5.3.30]
        ... 26 common frames omitted
Caused by: java.lang.NoClassDefFoundError: com/mathworks/toolbox/javabuilder/MWException
        at java.base/java.lang.Class.getDeclaredMethods0(Native Method) ~[na:na]
        at java.base/java.lang.Class.privateGetDeclaredMethods(Class.java:3402) ~[na:na]
        at java.base/java.lang.Class.getDeclaredMethods(Class.java:2504) ~[na:na]
        at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:467) ~[spring-core-5.3.30.jar!/:5.3.30]
        ... 28 common frames omitted
Caused by: java.lang.ClassNotFoundException: com.mathworks.toolbox.javabuilder.MWException
        at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:445) ~[na:na]
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:587) ~[na:na]
        at org.springframework.boot.loader.LaunchedURLClassLoader.loadClass(LaunchedURLClassLoader.java:151) ~[demo1-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520) ~[na:na]
        ... 32 common frames omitted

How to solve this problem?

Answer 1

[Rozerin]

Finally I solved the problem. There are some scope's in the pom.xml file

<scope></scope>

. And also as you can see in the errors it couldn't find javabuilder. After adding this in plugin:

<configuration>
   <includeSystemScope>true</includeSystemScope>
</configuration>

the problem was solved successfully.

[竞超]

centos or win？

[Rozerin]

win