CODEWITHSUNDEEP
javamavendeploymentmaven-plugin
Phill Alexakis
Phill Alexakis

Reputation: 1499

MavenReportException: JAVA_HOME not correctly set

I've tried many JDK versions in order to solve this problem but it seems no matter which java i'm using the outcome is always the same.

MavenReportException: Error while creating archive: Unable to find javadoc command: The environment variable JAVA_HOME is not correctly set.

Debug

These are the jdk's currently installed: enter image description here

I ran :

export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64

export PATH=$JAVA_HOME/bin:$PATH

java -version:

openjdk version "1.8.0_265"
OpenJDK Runtime Environment (build 1.8.0_265-8u265-b01-0ubuntu2~20.04-b01)
OpenJDK 64-Bit Server VM (build 25.265-b01, mixed mode)

javac -version

javac 1.8.0_265

mvn clean deploy -P release

enter image description here

MavenReportException: Error while creating archive: Unable to find javadoc command: The environment variable JAVA_HOME is not correctly set.

Maven Plugin Configuration

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <configuration>
        <source>1.8</source>
        <target>1.8</target>
        <executable>${JAVA_HOME}/bin/javac</executable>
    </configuration>
</plugin>

Although which java and which javadoc pointing to /usr/bin could that be the issue?

Edit 1

Contents of /bin

enter image description here

Upvotes: 6

Views: 16553

Answers (2)

Keshavram Kuduwa
Keshavram Kuduwa

Reputation: 1060

I don't know if this helps, but in my case maven Failed to execute goal org.apache.maven.plugins:maven-javadoc-plugin:3.2.0:jar and gave an exception: MavenReportException: Error while generating Javadoc: Unable to find javadoc command: The environment variable JAVA_HOME is not correctly set.

The solution was to find the plugin that was causing the issue, <artifactId>maven-javadoc-plugin</artifactId> in my case and add the following:

                <configuration>
                    <javadocExecutable>${java.home}/bin/javadoc</javadocExecutable>
                </configuration>

where ${java.home} was /usr/lib/jvm/java-11-openjdk-amd64/.

The plugin looked like:

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-javadoc-plugin</artifactId>
                <configuration>
                    <javadocExecutable>${java.home}/bin/javadoc</javadocExecutable>
                </configuration>
                <version>3.2.0</version>
                <executions>
                    <execution>
                        <id>attach-javadocs</id>
                        <goals>
                            <goal>jar</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>

and the goal was executed successfully.

Upvotes: 6

Satender Joon
Satender Joon

Reputation: 39

Please check the java version for Maven using the following command:

#mvn --version

It will give something like:

Apache Maven 3.5.3 (3383c37e1f9e9b3bc3df5050c29c8aff9f295297; 2018-02-25T01:19:05+05:30) Maven home: /home/user/apache-maven-3.5.3 Java version: 1.8.0_121, vendor: Oracle Corporation Java home: /home/user/jdk1.8.0_121/jre Default locale: en_IN, platform encoding: UTF-8

Here, you can see which JAVA version is used and its location.

Upvotes: 1

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