Java code support

This topic describes supported Java versions in VuGen, and how to use a custom JRE for Java serialization.

Note: For Java protocols, a full JDK installation is required. For details, see Set up the Java environment for Java protocols.

About working with Java code in VuGen

VuGen installation currently includes the following JDK versions:

  • Windows (VuGen, load generators): OpenJDK 11, 32-bit
  • Linux: OpenJDK 8, 32-bit (Linux)

The internal JRE for the JDK installation is used by default for all Java code, when recording and generating scripts. If you choose to install your own custom JRE version, you can configure VuGen to use it instead (applies globally for all protocols).

The internal JRE is also the default used during replay of Java-related protocols (not including the Java protocols). You can configure VuGen to use the custom JRE for replay, by defining the path in the runtime settings for the script.

If you want to use a custom JRE, you can install a complete JDK, or just JRE, according to your needs:

JDK

Replay

Compile
JRE

Code generation

Record

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Using a custom JRE

Configure options and runtime settings, as described in the following steps.

To use a custom JRE:

  1. Install the JDK or JRE, as required.

    For information about supported versions, see the JDK support matrix, below.

  2. For code generation, define the path to the installed JRE in the Options dialog box. Select Tools > Options > Scripting > Java > JRE > Custom JRE path and browse to the JRE folder.

    Note: This sets the custom JRE to be used for code generation and other actions for all VuGen protocols, including Java protocols.

  3. To use the custom JRE for script replay, define the path to the JRE folder in the Runtime Settings for the individual script. The location depends on the protocol:

    • Web HTTP/HTML, Oracle Web: Runtime Settings > Data Format Extension > Advanced.
    • Flex: Runtime Settings > Flex > Configuration
    • Web Services: Runtime Settings > JMS > Advanced.

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JDK support matrix

The following JRE/JDK versions are supported in VuGen:

  Version 7 Version 8 Version 11
32-bit (for Java over HTTP, Java Record Replay & Java Vuser protocols) Oracle JDK Oracle JDK Common OpenJDK Distributions
64-bit (for Java Record Replay & Java Vuser protocols) Oracle JDK Oracle JDK Oracle JDK/Common OpenJDK Distributions

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