Classpath System getProperty java class path – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-8.9

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Briefly, this error occurs when Elasticsearch is unable to access the Java classpath. This could be due to incorrect Java installation, incorrect environment variable settings, or insufficient permissions. To resolve this issue, you can verify your Java installation and ensure that the JAVA_HOME environment variable is correctly set. If the problem persists, check the permissions of the Elasticsearch installation directory. You may also need to check if the classpath is correctly defined in the Elasticsearch startup script.

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This guide will help you check for common problems that cause the log ” Classpath: {}”; System.getProperty(“java.class.path ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .

Log Context

Log “Classpath: {}”; System.getProperty(“java.class.path” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :


    public String getResourcesClasspath() {
        // This will make sure the task is not considered up to date if the resources are changed."Classpath: {}"; System.getProperty("java.class.path"));
        return System.getProperty("java.class.path");

    public void setOutputDir(File outputDir) {


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