resin3是不是有60天的限制呢？在log里总会发现很多提示：
Product registration not found: using Developer Source license.
See http://www.caucho.com/download/license.xtp for details. Developer Source use is limited to:
1. 60 day evaluation
2. Development and testing
3. Hobbyists and students下边会出很多异常：
Caused by: com.caucho.java.JavaCompileException: Resin can't load com.sun.tools.javac.Main. Usually this means that the JDK tools.jar is missing from the classpath, possibly because of using a JRE instead of the JDK. You can either add tools.jar to the classpath or change the compiler to an external one with <java compiler='javac'/> or jikes.java.lang.ClassNotFoundException: com.sun.tools.javac.Main
at com.caucho.java.InternalCompiler.compileInt(InternalCompiler.java:88)
at com.caucho.java.AbstractJavaCompiler.run(AbstractJavaCompiler.java:115)
觉得环境变量没问题啊，怎么会找不到呢
Product registration not found: using Developer Source license.
See http://www.caucho.com/download/license.xtp for details. Developer Source use is limited to:
1. 60 day evaluation
2. Development and testing
3. Hobbyists and students下边会出很多异常：
Caused by: com.caucho.java.JavaCompileException: Resin can't load com.sun.tools.javac.Main. Usually this means that the JDK tools.jar is missing from the classpath, possibly because of using a JRE instead of the JDK. You can either add tools.jar to the classpath or change the compiler to an external one with <java compiler='javac'/> or jikes.java.lang.ClassNotFoundException: com.sun.tools.javac.Main
at com.caucho.java.InternalCompiler.compileInt(InternalCompiler.java:88)
at com.caucho.java.AbstractJavaCompiler.run(AbstractJavaCompiler.java:115)
觉得环境变量没问题啊，怎么会找不到呢
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