TomEE 7.0.4兼容JDK9/10配置求助：Windows下catalina.bat设置方法

Hey there, I’ve helped several folks work through this exact TomEE 7.0.4 + JDK 9/10 compatibility issue—you’re right that it’s tied to JDK 9’s module system (JPMS) changes that TomEE 7.x doesn’t handle by default. Let’s walk through the specific Windows configuration steps to get it up and running:

This is the core fix, as we need to add JPMS-specific flags to let TomEE access the JDK modules and internal APIs it relies on:

• Navigate to your TomEE installation’s bin folder, find catalina.bat, and open it in a text editor (Notepad++, VS Code, etc.).
• Locate the section where JAVA_OPTS is defined (if it’s not explicitly set, you can add these lines right after the setlocal command at the top).
• Add the following lines to configure the JVM flags:

  set "JAVA_OPTS=%JAVA_OPTS% --add-modules java.se.ee"
  set "JAVA_OPTS=%JAVA_OPTS% --add-opens java.base/java.lang=ALL-UNNAMED"
  set "JAVA_OPTS=%JAVA_OPTS% --add-opens java.base/java.io=ALL-UNNAMED"
  set "JAVA_OPTS=%JAVA_OPTS% --add-opens java.base/java.util=ALL-UNNAMED"
  set "JAVA_OPTS=%JAVA_OPTS% --add-opens java.base/java.util.concurrent=ALL-UNNAMED"
  set "JAVA_OPTS=%JAVA_OPTS% --add-opens java.rmi/sun.rmi.transport=ALL-UNNAMED"
  

  Here’s what each part does:
  • --add-modules java.se.ee: Pulls in the aggregated Java EE module that includes all the EE-related APIs TomEE needs (like JPA, JAX-WS, etc.).
  • The --add-opens flags: Grant TomEE access to internal JDK APIs that were encapsulated by JPMS—TomEE’s underlying libraries (like OpenEJB) still use these for core functionality.

Double-check that TomEE is pointing to your JDK 9/10 installation explicitly:

• Add or update the JAVA_HOME variable near the top of catalina.bat (before any JVM commands) to match your JDK path. For example:

  set "JAVA_HOME=C:\Program Files\Java\jdk-9.0.4"
  

  This avoids conflicts with other JDK versions you might have installed on your system.

TomEE 7.0.4 is a relatively early release in the 7.x line. If possible, upgrade to the latest 7.x patch release (7.0.10 is the final one) — it includes minor fixes for JDK 9+ compatibility that might reduce the number of manual config tweaks you need.

If you still run into issues after these steps, check the TomEE startup logs (in the logs folder) for specific module-related errors—you might need to add an extra --add-opens flag for a specific JDK module that’s being blocked.

内容的提问来源于stack exchange，提问作者javista