Tag Archives: PATH

[Solved] javax.xml.bind.JAXBException: Implementation of JAXB-API has not been found on module path or classpath.


JAXBException is the root exception class for all the JAXB exceptions. Generally this exception occurred when the implemented code is not fulfill the pre-requisite for JAXB related dependencies.

Constructors

JAXBException class having following constructors.

  • JAXBException(String msg): Construct exception with detail message..
  • JAXBException(String msg, String errorCode) : This construct exception with detail message with error code.
  • JAXBException(String msg, String errorCode, Throwable exception) : Construct detail message with error code and stacktrace of linked exception stacktrace.
  • JAXBException(String msg, Throwable exception) :Construct exception with detail message and stacktrace of linked exception.
  • JAXBException(Throwable exception) : Construct exception with stacktrace of linked exception.

Problem

This JAXBException occurred in your code because on runtime JAXB is not able to find JAXB-API related dependency.

javax.xml.bind.JAXBException: Implementation of JAXB-API has not been found on module path or classpath.
 - with linked exception:
[java.lang.ClassNotFoundException: com.sun.xml.internal.bind.v2.ContextFactory]
	at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:278)
	at javax.xml.bind.ContextFinder.find(ContextFinder.java:421)
	at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:721)
	at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:662)
	at com.facingIssuesOnIT.domain.EmployeeJAXBTest.marshal(EmployeeJAXBTest.java:23)
	at com.facingIssuesOnIT.domain.EmployeeJAXBTest.main(EmployeeJAXBTest.java:15)
Caused by: java.lang.ClassNotFoundException: com.sun.xml.internal.bind.v2.ContextFactory
	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
	at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
	at javax.xml.bind.ServiceLoaderUtil.nullSafeLoadClass(ServiceLoaderUtil.java:122)
	at javax.xml.bind.ServiceLoaderUtil.safeLoadClass(ServiceLoaderUtil.java:155)
	at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:276)
	... 5 more

Solutions

To implement JAXB marshalling and unmarshalling in your application, you need to add following dependencies in you code. As above exception message explained “JAXB-API has not found in module or class path” this exception occurred when you forget to add JAXB-API dependency.

<dependency>
    <groupId>com.sun.xml.bind</groupId>
    <artifactId>jaxb-core</artifactId>
    <version>2.3.0.1</version>
</dependency>

<dependency>
    <groupId>javax.xml.bind</groupId>
    <artifactId>jaxb-api</artifactId>
    <version>2.3.1</version>
</dependency>

<dependency>
    <groupId>com.sun.xml.bind</groupId>
    <artifactId>jaxb-impl</artifactId>
    <version>2.3.1</version>
</dependency>
 
<dependency>
    <groupId>org.javassist</groupId>
    <artifactId>javassist</artifactId>
    <version>3.25.0-GA</version>
</dependency>

Conclusion

In this post , You learn about the JAXBException cases to occurred, different constructors and example to solve JAXB-API has not found in module or class path” JAXBException.

Let me know your thought to about this post.

Happy Learning !!!

[Solved] Maven: No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK


This maven exception occurs  when your Window/Unix environment variable for JAVA_HOME and PATH are pointing to JRE instead of JDK. That’s why maven will not compile code and throw below exception.

Problem

[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building SpringBootApp 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-install-plugin/2.5.2/maven-install-plugin-2.5.2.pom
[INFO] Downloaded: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-install-plugin/2.5.2/maven-install-plugin-2.5.2.pom (7 KB at 2.3 KB/sec)
[INFO] Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-plugins/25/maven-plugins-25.pom
[INFO] Downloaded: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-plugins/25/maven-plugins-25.pom (10 KB at 10.2 KB/sec)
[INFO]
[INFO] --- maven-resources-plugin:3.0.1:resources (default-resources) @ SpringBootApp ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 0 resource
[INFO] Copying 0 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.7.0:compile (default-compile) @ SpringBootApp ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 1 source file to D:\Saurabh Gupta\facingIssuesOnIT\SpringBootApp\target\classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
[INFO] 1 error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 5.342 s
[INFO] Finished at: 2018-05-28T15:59:31+05:30
[INFO] Final Memory: 20M/209M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.7.0:compile (default-compile) on project SpringBootApp: Compilation failure
[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException

Solutions

To resolve this issue you can follow below steps by solving command prompt or Eclipse.

Command Prompt

How to Configure Maven in Window and Linux?

Eclipse

  • Right click on project -> Select Properties
  • Select Java Build Path-> Libraries Tab -> Click on Add Library
  • Refer below link for reference.

Eclipse : How to set java path of JDK/JRE?