error in running spring application on ubuntu [duplicate] - spring

I have some code that uses JAXB API classes which have been provided as a part of the JDK in Java 6/7/8. When I run the same code with Java 9, at runtime I get errors indicating that JAXB classes can not be found.
The JAXB classes have been provided as a part of the JDK since Java 6, so why can Java 9 no longer find these classes?

The JAXB APIs are considered to be Java EE APIs and therefore are no longer contained on the default classpath in Java SE 9. In Java 11, they are completely removed from the JDK.
Java 9 introduces the concepts of modules, and by default, the java.se aggregate module is available on the classpath (or rather, module-path). As the name implies, the java.se aggregate module does not include the Java EE APIs that have been traditionally bundled with Java 6/7/8.
Fortunately, these Java EE APIs that were provided in JDK 6/7/8 are still in the JDK, but they just aren't on the classpath by default. The extra Java EE APIs are provided in the following modules:
java.activation
java.corba
java.transaction
java.xml.bind << This one contains the JAXB APIs
java.xml.ws
java.xml.ws.annotation
Quick and dirty solution: (JDK 9/10 only)
To make the JAXB APIs available at runtime, specify the following command-line option:
--add-modules java.xml.bind
But I still need this to work with Java 8!!!
If you try specifying --add-modules with an older JDK, it will blow up because it's an unrecognized option. I suggest one of two options:
You can set any Java 9+ only options using the JDK_JAVA_OPTIONS environment variable. This environment variable is automatically read by the java launcher for Java 9+.
You can add the -XX:+IgnoreUnrecognizedVMOptions to make the JVM silently ignore unrecognized options, instead of blowing up. But beware! Any other command-line arguments you use will no longer be validated for you by the JVM. This option works with Oracle/OpenJDK as well as IBM JDK (as of JDK 8sr4).
Alternate quick solution: (JDK 9/10 only)
Note that you can make all of the above Java EE modules available at run time by specifying the --add-modules java.se.ee option. The java.se.ee module is an aggregate module that includes java.se.ee as well as the above Java EE API modules. Note, this doesn't work on Java 11 because java.se.ee was removed in Java 11.
Proper long-term solution: (JDK 9 and beyond)
The Java EE API modules listed above are all marked #Deprecated(forRemoval=true) because they are scheduled for removal in Java 11. So the --add-module approach will no longer work in Java 11 out-of-the-box.
What you will need to do in Java 11 and forward is include your own copy of the Java EE APIs on the classpath or module path. For example, you can add the JAX-B APIs as a Maven dependency like this:
<!-- API, java.xml.bind module -->
<dependency>
<groupId>jakarta.xml.bind</groupId>
<artifactId>jakarta.xml.bind-api</artifactId>
<version>2.3.2</version>
</dependency>
<!-- Runtime, com.sun.xml.bind module -->
<dependency>
<groupId>org.glassfish.jaxb</groupId>
<artifactId>jaxb-runtime</artifactId>
<version>2.3.2</version>
</dependency>
See the JAXB Reference Implementation page for more details on JAXB.
For full details on Java modularity, see JEP 261: Module System
As of July 2022, the latest version of the bind-api and jaxb-runtime is 4.0.0. So you can also use
<version>4.0.0</version>
...within those dependency clauses. But if you do so, the package names have changed from javax.xml.bind... to jakarta.xml.bind.... You will need to modify your source code to use these later versions of the JARs.
For Gradle or Android Studio developer: (JDK 9 and beyond)
Add the following dependencies to your build.gradle file:
dependencies {
// JAX-B dependencies for JDK 9+
implementation "jakarta.xml.bind:jakarta.xml.bind-api:2.3.2"
implementation "org.glassfish.jaxb:jaxb-runtime:2.3.2"
}

In my case (spring boot fat jar) I just add the following to pom.xml.
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.1</version>
</dependency>

Clean solution for all JDKs >= 9
You need to add two dependencies to your build
the jaxb-api
a jaxb implementation
As an implementation I chose to use the reference implementation by glassfish to get rid of old com.sun classes / libraries.
So as a result I added in my maven build
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.1</version>
</dependency>
<dependency>
<groupId>org.glassfish.jaxb</groupId>
<artifactId>jaxb-runtime</artifactId>
<version>2.3.1</version>
</dependency>
Note that from version 2.3.1 you don't need to add the javax.activation any longer. (see https://github.com/eclipse-ee4j/jaxb-ri/issues/1222)

None of these solutions worked fine for me in the recent JDK 9.0.1.
I found that this list of dependencies is enough for a proper functioning, so you don't need to explicitly specify --add-module (though it is specified within these dependencies's pom's). The only you need is to specify this list of dependencies:
<dependencies>
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.0</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>2.3.0</version>
</dependency>
<dependency>
<groupId>org.glassfish.jaxb</groupId>
<artifactId>jaxb-runtime</artifactId>
<version>2.3.0</version>
</dependency>
<dependency>
<groupId>javax.activation</groupId>
<artifactId>activation</artifactId>
<version>1.1.1</version>
</dependency>
</dependencies>

This worked for me:
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.0</version>
</dependency>
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>eclipselink</artifactId>
<version>2.7.0</version>
</dependency>
Update
As #Jasper suggested, in order to avoid depending on the entire EclipseLink library, you can also just depend on EclipseLink MOXy:
Maven
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>org.eclipse.persistence.moxy</artifactId>
<version>2.7.3</version>
</dependency>
Gradle
compile group: 'org.eclipse.persistence', name: 'org.eclipse.persistence.moxy', version: '2.7.3'
As dependencies for my Java 8 app, which produces a *.jar which can be run by both JRE 8 or JRE 9 with no additional arguments.
In addition, this needs to be executed somewhere before JAXB API will be used:
System.setProperty("javax.xml.bind.JAXBContextFactory", "org.eclipse.persistence.jaxb.JAXBContextFactory");
Works great so far, as a workaround. Doesn't look like a perfect solution though...

it´s because java version if you are using jdk 9 or a later version just add this to your pom
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.0</version>
</dependency>

To solve this, I have imported some JAR files in my project:
javax.activation-1.2.0.jar
http://search.maven.org/remotecontent?filepath=com/sun/activation/javax.activation/1.2.0/javax.activation-1.2.0.jar
jaxb-api-2.3.0.jar
http://search.maven.org/remotecontent?filepath=javax/xml/bind/jaxb-api/2.3.0/jaxb-api-2.3.0.jar
jaxb-core-2.3.0.jar
http://search.maven.org/remotecontent?filepath=com/sun/xml/bind/jaxb-core/2.3.0/jaxb-core-2.3.0.jar
jaxb-impl-2.3.0.jar
http://search.maven.org/remotecontent?filepath=com/sun/xml/bind/jaxb-impl/2.3.0/jaxb-impl-2.3.0.jar
Download above files and copy them into libs folder in the project
Add the imported JAR files in Java Build Path

At the time of compilation as well as run time, add the switch --add-modules java.xml.bind
javac --add-modules java.xml.bind <java file name>
java --add-modules java.xml.bind <class file>
A good introduction of the JDK 9 modules can also be found at :
https://www.youtube.com/watch?v=KZfbRuvv5qc

I encountered this issue when working on a Java Project in Debian 10.
Each time I start the appliction it throws the error in the log file:
java.lang.NoClassDefFoundError: javax/xml/bind/JAXBException
Here's how I solved it:
The issue is often caused when JAXB library (Java Architecture for XML Binding) is missing in the classpath. JAXB is included in Java SE 10 or older, but it is removed from Java SE from Java 11 or newer –moved to Java EE under Jakarta EE project.
So, I checked my Java version using:
java --version
And it gave me this output
openjdk 11.0.8 2020-07-14
OpenJDK Runtime Environment (build 11.0.8+10-post-Debian-1deb10u1)
OpenJDK 64-Bit Server VM (build 11.0.8+10-post-Debian-1deb10u1, mixed mode, sharing)
So I was encountering the JAXBException error because I was using Java 11, which does not have the JAXB library (Java Architecture for XML Binding) is missing in the classpath. JAXB is included in it.
To fix the issue I had to add the JAXB API library to the lib (/opt/tomcat/lib) directory of my tomcat installation:
sudo wget https://repo1.maven.org/maven2/javax/xml/bind/jaxb-api/2.4.0-b180830.0359/jaxb-api-2.4.0-b180830.0359.jar
Then I renamed it from jaxb-api-2.4.0-b180830.0359.jar to jaxb-api.jar:
sudo mv jaxb-api-2.4.0-b180830.0359.jar jaxb-api.jar
Note: Ensure that you change the permission allow tomcat access the file and also change the ownership to tomcat:
sudo chown -R tomcat:tomcat /opt/tomcat
sudo chmod -R 777 /opt/tomcat/
And then I restarted the tomcat server:
sudo systemctl restart tomcat
Resources: [Solved] java.lang.NoClassDefFoundError: javax/xml/bind/JAXBException
That's all.

Update April 2019
Changelong for JAXB releases is at https://javaee.github.io/jaxb-v2/doc/user-guide/ch02.html
excerpts:
4.1. Changes between 2.3.0.1 and 2.4.0
JAXB RI is now JPMS modularized:
All modules have native module descriptor.
Removed jaxb-core module, which caused split package issue on JPMS.
RI binary bundle now has single jar per dependency instead of shaded fat jars.
Removed runtime class weaving optimization.
4.2. Changes between 2.3.0 and 2.3.0.1
Removed legacy technology dependencies:
com.sun.xml.bind:jaxb1-impl
net.java.dev.msv:msv-core
net.java.dev.msv:xsdlib
com.sun.xml.bind.jaxb:isorelax
4.3. Changes between 2.2.11 and 2.3.0
Adopt Java SE 9:
JAXB api can now be loaded as a module.
JAXB RI is able to run on Java SE 9 from the classpath.
Addes support for java.util.ServiceLoader mechanism.
Security fixes
Authoritative link is at https://github.com/eclipse-ee4j/jaxb-ri#maven-artifacts
Maven coordinates for JAXB artifacts
jakarta.xml.bind:jakarta.xml.bind-api: API classes for JAXB. Required
to compile against JAXB.
org.glassfish.jaxb:jaxb-runtime: Implementation of JAXB, runtime used
for serialization and deserialization java objects to/from xml.
JAXB fat-jar bundles:
com.sun.xml.bind:jaxb-impl: JAXB runtime fat
jar.
In contrast
to org.glassfish.jaxb artifacts, these jars have all dependency
classes included inside. These artifacts does not contain JPMS module
descriptors.
In Maven projects org.glassfish.jaxb artifacts are
supposed to be used instead.
org.glassfish.jaxb:jaxb-runtime:jar:2.3.2 pulls in:
[INFO] +- org.glassfish.jaxb:jaxb-runtime:jar:2.3.2:compile
[INFO] | +- jakarta.xml.bind:jakarta.xml.bind-api:jar:2.3.2:compile
[INFO] | +- org.glassfish.jaxb:txw2:jar:2.3.2:compile
[INFO] | +- com.sun.istack:istack-commons-runtime:jar:3.0.8:compile
[INFO] | +- org.jvnet.staxex:stax-ex:jar:1.8.1:compile
[INFO] | +- com.sun.xml.fastinfoset:FastInfoset:jar:1.2.16:compile
[INFO] | \- jakarta.activation:jakarta.activation-api:jar:1.2.1:compile
Original Answer
Following Which artifacts should I use for JAXB RI in my Maven project? in Maven, you can use a profile like:
<profile>
<id>java-9</id>
<activation>
<jdk>9</jdk>
</activation>
<dependencies>
<dependency>
<groupId>org.glassfish.jaxb</groupId>
<artifactId>jaxb-runtime</artifactId>
<version>2.3.0</version>
</dependency>
<dependency>
<groupId>javax.activation</groupId>
<artifactId>activation</artifactId>
<version>1.1.1</version>
</dependency>
</dependencies>
</profile>
Dependency tree shows:
[INFO] +- org.glassfish.jaxb:jaxb-runtime:jar:2.3.0:compile
[INFO] | +- org.glassfish.jaxb:jaxb-core:jar:2.3.0:compile
[INFO] | | +- javax.xml.bind:jaxb-api:jar:2.3.0:compile
[INFO] | | +- org.glassfish.jaxb:txw2:jar:2.3.0:compile
[INFO] | | \- com.sun.istack:istack-commons-runtime:jar:3.0.5:compile
[INFO] | +- org.jvnet.staxex:stax-ex:jar:1.7.8:compile
[INFO] | \- com.sun.xml.fastinfoset:FastInfoset:jar:1.2.13:compile
[INFO] \- javax.activation:activation:jar:1.1.1:compile
To use this in Eclipse, say Oxygen.3a Release (4.7.3a) or later, Ctrl-Alt-P, or right-click on the project, Maven, then select the profile.

You need to add JAX-B dependencies when using JDK 9+. For Android Studio user, you'll need to add this to your build.gradle's dependencies {} block:
// Add missing dependencies for JDK 9+
if (JavaVersion.current().ordinal() >= JavaVersion.VERSION_1_9.ordinal()) {
// If you're using #AutoValue or any libs that requires javax.annotation (like Dagger)
compileOnly 'com.github.pengrad:jdk9-deps:1.0'
compileOnly 'javax.annotation:javax.annotation-api:1.3.2'
// If you're using Kotlin
kapt "com.sun.xml.bind:jaxb-core:2.3.0.1"
kapt "javax.xml.bind:jaxb-api:2.3.1"
kapt "com.sun.xml.bind:jaxb-impl:2.3.2"
// If you're using Java
annotationProcessor "com.sun.xml.bind:jaxb-core:2.3.0.1"
annotationProcessor "javax.xml.bind:jaxb-api:2.3.1"
testAnnotationProcessor "com.sun.xml.bind:jaxb-core:2.3.0.1"
testAnnotationProcessor "javax.xml.bind:jaxb-api:2.3.1"
}

I also stumpled accross the ClassNotFoundException:javax.xml.bind.DatatypeConverter using Java 11 and
<dependency>
<groupId>io.jsonwebtoken</groupId>
<artifactId>jjwt</artifactId>
<version>0.9.1</version>
</dependency>
I tried all this stuff around adding javax.xml.bind:jaxb-api or spring boot jakarta.xml.bind-api .. I found a hint for fixes in jjwt version 0.10.0 .. but most importantly, the jjwt package is now split !
Thus, check this reference: https://github.com/jwtk/jjwt/issues/510
Simply, if you use
Java11 and
jjwt 0.9.x and
you face the ClassNotFoundException:javax.xml.bind.DatatypeConverter issue,
go for
jjwt version 0.11.x, but use the splitted packages: https://github.com/jwtk/jjwt#install
You maven wont find a higher version for jjwt dependency, since they split the packages.
Cheers.

This worked for me. Adding only jaxb-api wasn't enough.
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>${jaxb-api.version}</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>${jaxb-api.version}</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-core</artifactId>
<version>${jaxb-api.version}</version>
</dependency>

Go to Your Build.gradle and add below dependencies for both Java 9 or Java 10.
sourceCompatibility = 10 // You can also decrease your souce compatibility to 1.8
//java 9+ does not have Jax B Dependents
compile group: 'javax.xml.bind', name: 'jaxb-api', version: '2.3.0'
compile group: 'com.sun.xml.bind', name: 'jaxb-core', version: '2.3.0'
compile group: 'com.sun.xml.bind', name: 'jaxb-impl', version: '2.3.0'
compile group: 'javax.activation', name: 'activation', version: '1.1.1'

You can use --add-modules=java.xml.bind JVM option to add xml bind module to JVM run-time environment.
Eg: java --add-modules=java.xml.bind XmlTestClass

The root cause of this issue is that Gradle Daemon using JDK11, either you set your JAVA_HOME to JDK11 or your running your Gradle Task in the shared daemon which running with JDK11.
For Android:
Check your Project Structure settings, you can change the JDK to JDK8 from there.
You can also set a JAVA_HOME and points to java8 home.

For Java Web Start Execution we can use Andy Guibert's suggestion like this:
<j2se version="1.6+"
java-vm-args="-XX:+IgnoreUnrecognizedVMOptions --add-modules=java.se.ee"/>
Note the extra "=" in the --add-modules. See this OpenJDK Ticket or the last note in "Understanding Runtime Access Warnings" of the Java Platform, Standard Edition Oracle JDK 9 Migration Guide.

add javax.xml.bind dependency in pom.xml
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.0</version>
</dependency>

Adding the below dependency worked for me.
<!-- API, java.xml.bind module -->
<dependency>
<groupId>jakarta.xml.bind</groupId>
<artifactId>jakarta.xml.bind-api</artifactId>
<version>2.3.2</version>
</dependency>
<!-- Runtime, com.sun.xml.bind module -->
<dependency>
<groupId>org.glassfish.jaxb</groupId>
<artifactId>jaxb-runtime</artifactId>
<version>2.3.2</version>
</dependency>

This solved my problems with dependencies running Apache Camel 2.24.1 on Java 12:
<dependency>
<groupId>javax.activation</groupId>
<artifactId>activation</artifactId>
<version>1.1.1</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-core</artifactId>
<version>2.3.0.1</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>2.3.0.1</version>
</dependency>

Since JavaEE is now governed by https://jakarta.ee/, the new Maven coordinates as of 2.3.2 are:
https://eclipse-ee4j.github.io/jaxb-ri/#maven-artifacts
The first released jaxb.version is 2.3.2.
<properties>
<jaxb.version>2.3.2</jaxb.version>
</properties>
<dependency>
<groupId>jakarta.xml.bind</groupId>
<artifactId>jakarta.xml.bind-api</artifactId>
<version>${jaxb.version}</version>
</dependency>
<dependency>
<groupId>org.glassfish.jaxb</groupId>
<artifactId>jaxb-runtime</artifactId>
<version>${jaxb.version}</version>
</dependency>

I followed this URL and the below settings had really helped me. I use Java 10 with STS IDE in Macbook Pro. It works like a charm.
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.0</version>
</dependency>
<dependency>
<groupId>org.glassfish.jaxb</groupId>
<artifactId>jaxb-runtime</artifactId>
<version>2.3.0</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>javax.activation</groupId>
<artifactId>javax.activation-api</artifactId>
<version>1.2.0</version>
</dependency>

I encountered the same issue using Spring Boot 2.0.5.RELEASE on Java 11.
Adding javax.xml.bind:jaxb-api:2.3.0 alone did not fix the problem. I also had to update Spring Boot to the latest Milestone 2.1.0.M2, so I assume this will be fixed in the next official release.

As the official documentation states:
When upgrading you may face the following:
java.lang.NoClassDefFoundError: javax/xml/bind/JAXBException
Hibernate typically requires JAXB that’s no longer provided by default. You can
add the java.xml.bind module to restore this functionality with Java9
or Java10 (even if the module is deprecated).
As of Java11, the module is not available so your only option is to
add the JAXB RI (you can do that as of Java9 in place of adding the
java.xml.bind module:
Maven
<dependency>
<groupId>org.glassfish.jaxb</groupId>
<artifactId>jaxb-runtime</artifactId>
</dependency>
Gradle (build.gradle.kts):
implementation("org.glassfish.jaxb:jaxb-runtime")
Gradle (build.gradle)
implementation 'org.glassfish.jaxb:jaxb-runtime'
If you rather specify a specific version, take a look here:
https://mvnrepository.com/artifact/org.glassfish.jaxb/jaxb-runtime

Not an answer, but an addendum: I got because running groovysh (Groovy 2.4.13) if JAVA_HOME points to a Java 9 installation (java version "9.0.1" to be precise) fails abysmally:
java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.codehaus.groovy.tools.GroovyStarter.rootLoader(GroovyStarter.java:107)
at org.codehaus.groovy.tools.GroovyStarter.main(GroovyStarter.java:129)
Caused by: java.lang.NoClassDefFoundError: Unable to load class groovy.xml.jaxb.JaxbGroovyMethods due to missing dependency javax/xml/bind/JAXBContext
at org.codehaus.groovy.vmplugin.v5.Java5.configureClassNode(Java5.java:400)
at org.codehaus.groovy.ast.ClassNode.lazyClassInit(ClassNode.java:277)
at org.codehaus.groovy.ast.ClassNode.getMethods(ClassNode.java:397)
...
..
.
..
...
at org.codehaus.groovy.tools.shell.Groovysh.<init>(Groovysh.groovy:135)
at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:232)
at org.codehaus.groovy.tools.shell.Main.<init>(Main.groovy:66)
at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:232)
at org.codehaus.groovy.tools.shell.Main.main(Main.groovy:163)
... 6 more
The solution was to:
Go to the JAXB Project at github.io ("JAXB is licensed under a dual license - CDDL 1.1 and GPL 2.0 with Class-path Exception")
Download jaxb-ri-2.3.0.zip
Unzip wherever you put your java infrastructure files (in my case, /usr/local/java/jaxb-ri/). Other solution may exist (maybe via SDKMAN, I dunno)
Make sure the jars in the lib subdirectory are on the CLASSPATH. I do it via a script started on bash startup, called /etc/profile.d/java.sh, where I added (among many other lines) the following loop:
Packed into a function...
function extend_qzminynshg {
local BASE="/usr/local/java"
for LIB in jaxb-api.jar jaxb-core.jar jaxb-impl.jar jaxb-jxc.jar jaxb-xjc.jar; do
local FQLIB="$BASE/jaxb-ri/lib/$LIB"
if [[ -f $FQLIB ]]; then
export CLASSPATH=$FQLIB:$CLASSPATH
fi
done
}
extend_qzminynshg; unset extend_qzminynshg
And it works!

you can use this dependency
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.0</version>
</dependency>

You only need 1 dependency:
dependencies {
implementation ("jakarta.xml.bind:jakarta.xml.bind-api:2.3.2")

For me in Java 11 and gradle this is what worked out:
plugins {
id 'java'
}
dependencies {
runtimeOnly 'javax.xml.bind:jaxb-api:2.3.1'
}

i want to give a simple and easy solution about this Exception , just downgrade the android studio version upto 4.1.1 or less. Make sure you don't have android studio arctic fox (2020.3.1) version , because latest version don't support old project of android.

OK, I have been having the same kind of issue, but I was using Java 8, and kept getting this error, I tried most of the solutions. but it turns out that my maven was still pointing to java 9 even-though I set the global Java version to 8, as soon as I fixed that it all worked.
For anybody who might have this kind of problem, check out How to fix Maven to use default Java (archived)

Related

How to get Spring to use older version of Guava for specific Dependency, but newer version for "main" project

I have a dependency in my SpringBoot project:
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-cluster-zookeeper</artifactId>
<version>1.0.2.RELEASE</version>
</dependency>
Which requires Guava 16.01
However, my "main" project which I'm including cluster-zookeeper in requires Guava 28.2
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>28.2-jre</version>
</dependency>
When I run SpringBoot App, I get error:
The following method did not exist:
com.google.common.util.concurrent.MoreExecutors.sameThreadExecutor()Lcom/google/common/util/concurrent/ListeningExecutorService;
The method's class, com.google.common.util.concurrent.MoreExecutors, is available from the following locations:
jar:file:/blah/.m2/repository/com/google/guava/guava/28.2-jre/guava-28.2-jre.jar!/com/google/common/util/concurrent/MoreExecutors.class
It was loaded from the following location:
file: /blah/.m2/repository/com/google/guava/guava/28.2-jre/guava-28.2-jre.jar
Action:
Correct the classpath of your application so that it contains a single, compatible version of com.google.common.util.concurrent.MoreExecutors
It seems like a version conflict issue where Spring tries to get cluster-zookeeper to use newer Guava version, when it require older one. How can I get this to work? I.e use 16.01 Guava for ONLY cluster-zookeeper while keeping 28.2 dependency for my main project?

Serialization errors due to jackson-databind version mismatch?

I am running into the following error
java.lang.NoSuchFieldError: WRITE_DURATIONS_AS_TIMESTAMPS
at com.fasterxml.jackson.datatype.joda.ser.DurationSerializer.<init>(DurationSerializer.java:28)
at com.fasterxml.jackson.datatype.joda.ser.DurationSerializer.<init>(DurationSerializer.java:25)
at com.fasterxml.jackson.datatype.joda.JodaModule.<init>(JodaModule.java:45)
I checked to see what versions of jackson-datatype-joda are available. It appears that maven has excluded all version mismatches.
Any other reason this might cause serialization errors?
The problem is that among the maven dependencies (mind that it could be a transitive one) you have incompatible versions of jackson-datatype-joda and jackson-databind. Incompatible in the sense that jackson-databind's SerializationFeature class is missing the WRITE_DURATIONS_AS_TIMESTAMPS field. To see what dependencies maven brings you can run the following command in the terminal (or you can use an IDE's maven plug to search and analyse the maven dependency tree):
mvn dependency:tree | grep databind
the outcome will most probably be something like:
[INFO] | +- com.fasterxml.jackson.core:jackson-databind:jar:2.4.1:compile
The version of course can vary but the important thing is that the WRITE_DURATIONS_AS_TIMESTAMPS field is only available since version 2.5
You can exclude a transitive dependency like this:
<dependency>
<groupId>group.id</groupId>
<artifactId>artifact-id</artifactId>
<version>${artifact.version}</version>
<exclusions>
<exclusion>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</exclusion>
</exclusions>
</dependency>
If it's not a transitive dependency you need to update version of jackson-databind.
I got it resolved by using following dependency as this dependency has overridden any other version used:
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-joda</artifactId>
<version>2.5.3</version>
</dependency>
I had same error. I had included all jackson*2.7.0 libraries under WEB-INF/lib/ and i was still getting that error. I am using wildfly 8.2 and it had jackson 2.4.1 libraries under modules and somehow it was loading 2.4.1 jars from that location. So I had to manually upgrade them to 2.7.0 which fixed the issue. I was under impression that if I did not mention it to load jackson jars in deployment configuration file, it would not load wildfly jars. I guess I was wrong.

How can i find which release of OSGI is supported by CQ5.5 .?

How can we find which release of OSGi is supported by CQ5.5 version, Is there any log file where i can find out the OSGi release in the CQ5 product?
CQ5.5 uses Apache Felix which is
... a community effort to implement the OSGi R4 Service Platform and other interesting OSGi-related technologies under the Apache license
The references to OSGI in the javadocs at dev.day.com point to R4 v4.2 specifically. This matches the compliance tests for the felix project
If you're building against the OSGI APIs in your application, then you'll need to add the following to your project pom.xml (assuming you're using maven):
<dependency>
<groupId>org.osgi</groupId>
<artifactId>org.osgi.core</artifactId>
<version>4.2.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.osgi</groupId>
<artifactId>org.osgi.compendium</artifactId>
<version>4.2.0</version>
<scope>provided</scope>
</dependency>
in CQ 5.6 we don't use the org.ogsi dependencies anymore. instead we have (amongst others)
<dependency>
<groupId>org.apache.sling</groupId>
<artifactId>org.apache.sling.commons.osgi</artifactId>
<version>2.2.0</version>
<scope>provided</scope>
</dependency
also you have (again in 5.6, not sure about 5.5) a depfinder
http://localhost:4502/system/console/depfinder
here you can see which package/version a certain class you need belongs to.
The implementation of OSGi used by CQ is Apache Felix, which implements OSGi Service Platform Release 4.
You can find out more detail about CQ's Technical Foundation at http://dev.day.com/docs/en/cq/5-5/exploring/concepts.html

Is there a maven JBOSS dependency that includes all JBOSS runtime jars?

I have a maven application that will be deployed to JBOSS 5.1 as a war. I want to know how to get it so that Maven can use the JBOSS 5.1 jars (i.e. all the jars in the common/lib folder and any other resources available to JBOSS at runtime) at compile time but not bundle them into the war file.
I thought I could just include some kind of JBOSS dependency with provided scope to do this however I can't find such a dependency. I have done a good bit of searching and can't really find such a dependency. There are a lot of references to pointing to a central JBOSS repository and pulling dependencies from there. I thought there would be just one global dependency that would include all JBOSS runtime jars. Os there such a thing?
If you need more than the standard Java EE API like JBoss packages or resolve some compatibility problems, you can use this dependency :
For JBoss / Java EE 7 Specification APIs
<dependency>
<groupId>org.jboss.spec</groupId>
<artifactId>jboss-javaee-7.0</artifactId>
<version>1.0.1.Final</version>
<type>pom</type>
<scope>provided</scope>
</dependency>
For JBoss / Java EE 6 Specification APIs
<dependency>
<groupId>org.jboss.spec</groupId>
<artifactId>jboss-javaee-6.0</artifactId>
<version>3.0.2.Final</version>
<type>pom</type>
<scope>provided</scope>
</dependency>
For JBoss WildFly 8.2.0.Final complete runtime dependencies
<dependency>
<groupId>org.wildfly</groupId>
<artifactId>wildfly-parent</artifactId>
<version>8.2.0.Final</version>
<type>pom</type>
<scope>provided</scope>
</dependency>
Now, you can also use those POM files to extract the specific dependencies you need.
This could be useful in remote debug time to let your IDE resolve automatically the server dependencies jars and sources currently loaded, or appearing in stacktraces ... in development mode.
In a production MAVEN build, you probably just need this kind of configuration (depending on your JBoss version) :
http://www.mastertheboss.com/jboss-server/wildfly-8/maven-configuration-for-java-ee-7-projects-on-wildfly
Considering JBoss is an EE container, adding the JavaEE dependency should be enough.
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>6.0</version>
<scope>provided</scope>
</dependency>
Scope provided ensures that JBoss's own libraries are used once the application is deployed to the server.

Which pom dependency should I use for jar commons-lang.jar

How do I know which version of a pom dependency I should use if its version is not in the jar name. For example the jar commons-lang.jar, what version of the pom dependency should I use ?
Here are its search results on maven central repo - http://search.maven.org/#search%7Cgav%7C1%7Cg%3A%22net.sf.staccatocommons%22%20AND%20a%3A%22commons-lang%22
First, use the one from Apache.
Second, you have two options, the 2.x or 3.x branches; from searching mvnrepository.com:
2.6
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>2.6</version>
</dependency>
3.1
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.1</version>
</dependency>
If you're using Maven, you shouldn't have "just a jar", you should only know about POM dependencies.
(As of Feb 2014 it's up to 3.3.2, the 2.x series is still at 2.6. Note that you may use both in the same application because of their different packages.)
While the other answers are correct a very handy way to find out exact match for an unknown jar where all you have is the jar itself and it does not contain a useful manifest is to create a sha1 checksum of the jar and then do a checksum search on http://search.maven.org in the Advanced Search at the bottom or on your own instance of a Nexus repository server that downloaded the index of the Central Repository.
And btw your search on central was incorrect since it had the wrong groupId as part of it. Here is a corrected link:
http://search.maven.org/#search%7Cga%7C1%7C%22commons-lang%22
If you are migrating to Maven and just have a bunch of jars then you can try examining their META-INF/MANIFEST.MF files inside of those jars.
I've just opened commons-lang.jar and saw the following in its META-INF/MANIFEST.MF:
...
Implementation-Title: Commons Lang
Implementation-Vendor: The Apache Software Foundation
Implementation-Vendor-Id: org.apache
Implementation-Version: 2.4
...
So you can use Implementation-Version as your version in pom.xml:
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>2.4</version>
</dependency>

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