Bitbucket Pipelines - Maven compile error "invalid target release"
Platform Notice: Cloud Only - This article only applies to Atlassian products on the cloud platform.
Summary
The pipeline build may fail with the following Maven compile error:
1
Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project WM-Common: Fatal error compiling: invalid target release: 17 -> [Help 1]Cause
The above error may occur due to a mismatch of Java versions used by Maven. The default Atlassian Docker image used in the pipelines comes with pre-installed Maven and Java. Maven may be using a different Java version to compile the project, resulting in the error.
Example: Let's run a pipeline build to find Maven version details and the Java version used by the same.
bitbucket-pipelines.yml
1
2
3
4
5
6
pipelines:
default:
- step:
script:
- java -version
- mvn --versionPipeline Output:
1
2
3
4
5
6
7
8
9
10
11
12
13
+ java -version
java version "1.8.0_151"
Java(TM) SE Runtime Environment (build 1.8.0_151-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.151-b12, mixed mode)
+ mvn --version
Apache Maven 3.0.5
Maven home: /usr/share/maven
Java version: 1.8.0_151, vendor: Oracle Corporation
Java home: /usr/lib/jvm/java-8-oracle/jre
Default locale: en_US, platform encoding: ANSI_X3.4-1968
OS name: "linux", version: "5.10.101", arch: "amd64", family: "unix"As you can see, Maven is using Java 1.8, and hence the error "Fatal error compiling: invalid target release: 17"
Solution
Upgrade the Java version to 17 or the latest version as defined in your pom.xml file in the pipelines, and update the JAVA_HOME environment variable to ensure that it points to the correct Java version. One can also utilize the official Maven Docker image within their pipelines, as it is equipped with the necessary latest Java version.
Example:
bitbucket-pipelines.yml
1
2
3
4
5
6
image: maven:3.9.0
pipelines:
default:
- step:
script:
- mvn --versionPipeline Output:
1
2
3
4
5
6
+ mvn --version
Apache Maven 3.9.0 (9b58d2bad23a66be161c4664ef21ce219c2c8584)
Maven home: /usr/share/maven
Java version: 17.0.6, vendor: Eclipse Adoptium, runtime: /opt/java/openjdk
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "5.10.101", arch: "amd64", family: "unix"Was this helpful?