Mac环境下Spring Roo安装启动失败问题求助

Hey there, let's fix this Spring Roo startup issue you're running into! From the error logs and your description, here's a breakdown of what's going wrong and how to get things working:

问题根源 #

Your core issue stems from Java version compatibility combined with OSGi bundle dependency failures:

• Spring Roo 2.0.0.RELEASE was built for Java 8, but you're likely running a newer Java version (9+). Java 9 introduced the module system, which restricts reflective operations used by older libraries like Apache Felix (the OSGi framework Roo relies on)—that's what the "illegal reflective access" warnings are about.
• The critical error is that the org.springframework.roo.wrapping.antlr4-runtime bundle can't find the javax.annotation.processing package. This package's accessibility changed in Java 9+, breaking Roo's older dependency chain.

解决方案 #

1. 切换到Java 8环境（最稳妥的修复） #

This will resolve both the dependency error and the reflective access warnings:

• First, check your current Java version:

  java -version
  

• If it shows Java 9 or higher, install Java 8 (e.g., AdoptOpenJDK 8 or Oracle JDK 8).
• Temporary terminal setup: Run these commands to switch your terminal session to Java 8 (replace the path with your actual Java 8 installation):

  export JAVA_HOME=/Library/Java/JavaVirtualMachines/adoptopenjdk-8.jdk/Contents/Home
  export PATH=$JAVA_HOME/bin:$PATH
  

• Permanent setup:
  • On macOS/Linux: Add the above lines to your ~/.bash_profile or ~/.zshrc file, then run source ~/.bash_profile (or the corresponding file for your shell) to apply changes.
  • On Windows: Go to System Properties > Advanced > Environment Variables, add/modify JAVA_HOME to point to your Java 8 path, and update PATH to include %JAVA_HOME%\bin.
• Verify the switch worked:

  java -version
  

  It should display a Java 8 version number.

2. 重新启动Spring Roo #

• For terminal users: Run the roo command again—it should load fully without the dependency error.
• For STS users:
  • Open STS and go to Window > Preferences > Java > Installed JREs.
  • Add your Java 8 installation and set it as the default JRE.
  • Restart STS, then launch the Roo Shell again—it won't get stuck on the loading prompt anymore.

3. 可选：升级Spring Roo版本 #

If you need to use a newer Java version, consider upgrading to Spring Roo 2.0.1.RELEASE or later. These releases have improved compatibility with Java 9+ and fix many module system-related issues.

你在终端遇到的完整错误日志： #

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.apache.felix.framework.util.SecureAction (file:/Users/tkhader/Documents/Junk/RooAutogen/spring-roo-2.0.0.RELEASE/bin/org.apache.felix.framework-5.4.0.jar) to method java.net.URLClassLoader.addURL(java.net.URL)
WARNING: Please consider reporting this to the maintainers of org.apache.felix.framework.util.SecureAction
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
ERROR: Bundle com.github.antlrjavaparser.antlr-java-parser [1] Error starting file:/Users/tkhader/Documents/Junk/RooAutogen/spring-roo-2.0.0.RELEASE/bundle/antlr-java-parser-1.0.15.jar (org.osgi.framework.BundleException: Unable to resolve com.github.antlrjavaparser.antlr-java-parser [1](R 1.0): missing requirement [com.github.antlrjavaparser.antlr-java-parser [1](R 1.0)] osgi.wiring.package; (osgi.wiring.package=org.antlr.v4.runtime.atn) [caused by: Unable to resolve org.springframework.roo.wrapping.antlr4-runtime [81](R 81.0): missing requirement [org.springframework.roo.wrapping.antlr4-runtime [81](R 81.0)] osgi.wiring.package; (osgi.wiring.package=javax.annotation.processing)] Unresolved requirements: [[com.github.antlrjavaparser.antlr-java-parser [1](R 1.0)] osgi.wiring.package; (osgi.wiring.package=org.antlr.v4.runtime.atn)])
org.osgi.framework.BundleException: Unable to resolve com.github.antlrjavaparser.antlr-java-parser [1](R 1.0): missing requirement [com.github.antlrjavaparser.antlr-java-parser [1](R 1.0)] osgi.wiring.package; (osgi.wiring.package=org.antlr.v4.runtime.atn) [caused by: Unable to resolve org.springframework.roo.wrapping.antlr4-runtime [81](R 81.0): missing requirement [org.springframework.roo.wrapping.antlr4-runtime [81](R 81.0)] osgi.wiring.package; (osgi.wiring.package=javax.annotation.processing)] Unresolved requirements: [[com.github.antlrjavaparser.antlr-java-parser [1](R 1.0)] osgi.wiring.package; (osgi.wiring.package=org.antlr.v4.runtime.atn)]
    at org.apache.felix.framework.Felix.resolveBundleRevision(Felix.java:4111)
    at org.apache.felix.framework.Felix.startBundle(Felix.java:2117)
    at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1371)
    at org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:308)
    at java.base/java.lang.Thread.run(Thread.java:844)

内容的提问来源于stack exchange，提问作者Tanzil Khader