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Legacy Knowledge Base
Published Sep. 10, 2025

sun.reflect.Reflection.getCallerClass Warning message during portal startup

Written By

Peter Nyiro

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Issue

  • You might encounter the following error message during portal startup if you use Java 11: 
    WARNING: sun.reflect.Reflection.getCallerClass is not supported. This will impact performance.

Environment

  • DXP 7.0+ 

Resolution

  • This warning message can be ignored and will be fixed in LPS-87421 
  • There is an available workaround at the moment, you can set the below JDK_JAVA_OPTIONS in each app server environment, e.g. Tomcat:
    JDK_JAVA_OPTIONS="$JDK_JAVA_OPTIONS --add-opens=java.desktop/java.awt.font=ALL-UNNAMED"
    JDK_JAVA_OPTIONS="$JDK_JAVA_OPTIONS --add-opens=java.base/java.io=ALL-UNNAMED"
    JDK_JAVA_OPTIONS="$JDK_JAVA_OPTIONS --add-opens=java.base/java.lang=ALL-UNNAMED"
    JDK_JAVA_OPTIONS="$JDK_JAVA_OPTIONS --add-opens=java.base/java.lang.reflect=ALL-UNNAMED"
    JDK_JAVA_OPTIONS="$JDK_JAVA_OPTIONS --add-opens=java.base/java.net=ALL-UNNAMED"
    JDK_JAVA_OPTIONS="$JDK_JAVA_OPTIONS --add-opens=java.base/java.nio=ALL-UNNAMED"
    JDK_JAVA_OPTIONS="$JDK_JAVA_OPTIONS --add-opens=java.base/java.text=ALL-UNNAMED"
    JDK_JAVA_OPTIONS="$JDK_JAVA_OPTIONS --add-opens=java.base/java.util=ALL-UNNAMED"
    JDK_JAVA_OPTIONS="$JDK_JAVA_OPTIONS --add-opens=java.base/sun.nio.ch=ALL-UNNAMED"
    JDK_JAVA_OPTIONS="$JDK_JAVA_OPTIONS --add-opens=java.rmi/sun.rmi.transport=ALL-UNNAMED"
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