Configure a Java Application to Use Fiddler

To configure a Java application to send web traffic to Fiddler, set the proxy using jre:

    jre -DproxySet=true -Dhttp.proxyHost=127.0.0.1 -Dhttp.proxyPort=8888

Or:

    jre -DproxySet=true -DproxyHost=127.0.0.1 -DproxyPort=8888 MyApp

Or, change the Java Virtual Machine's proxy settings programmatically:

    System.setProperty("http.proxyHost", "127.0.0.1");
    System.setProperty("https.proxyHost", "127.0.0.1");
    System.setProperty("http.proxyPort", "8888");
    System.setProperty("https.proxyPort", "8888");

Learn more about Java proxy settings.