Java Virtual Machine requirements

Klocwork recommends you use a Java Runtime Environment (JRE) and a Java Development Kit (JDK), such as OpenJDK, that is compatible with the platform you are using.

Ensure you have 64-bit Java installed prior to installing Klocwork.

Starting from release 2024.2, you can specify which Java Virtual Machine (JVM) Klocwork Java tools should use by setting the KW_JAVA environment variable:

set "KW_JAVA=<your preferred JVM install directory>\java.exe"

When this variable is set, the Klocwork Java tools will run using the JVM defined by KW_JAVA instead of the default JVM. This allows for greater flexibility and compatibility with different Java environments.

On this page:

Windows

The Server tools use Open JDK version 17.0.10. The Build Tools and Command-Line packages bundle Open JDK version 1.8.0_372. Java is installed in <klocwork_install_path>\_jvm\bin\. Your system must meet the requirements for these versions of Java.

Linux

The Server tools use Open JDK version 17.0.10. The Build Tools and Command-Line packages bundle Open JDK version 1.8.0_372. Your system must meet the requirements for these versions of Java.

IDE plugins

Klocwork Desktop Java plugins for Eclipse and IntelliJ IDEA require a Java 8 or later compatible runtime environment. You must ensure that your IDE is running the appropriate version of Java.

kwant

kwant requires a JDK compatible with Java 8 or later. You must ensure your environment is configured to use the correct JDK.