SandboxClassLoader的parent为AppClassLoader导致的logback加载问题

[diecui1202]

SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/Users/zhuyong/.m2/repository/ch/qos/logback/logback-classic/1.1.11/logback-classic-1.1.11.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/Users/zhuyong/github/jvm-sandbox/target/sandbox/lib/../lib/sandbox-core.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [ch.qos.logback.classic.util.ContextSelectorStaticBinder]
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/Users/zhuyong/.m2/repository/ch/qos/logback/logback-classic/1.1.11/logback-classic-1.1.11.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/var/folders/_8/t39d5h3s6ql89cqwy7j470sc0000gn/T/sandbox_module_jar_5526050970864565436.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [ch.qos.logback.classic.util.ContextSelectorStaticBinder]

当应用AppClassLoader中有logback时，sandbox启动时，会在应用的控制台日志中输出如上的信息，原因是SandboxClassLoader的parent为AppClassLoader，Slf4j在初始化时会扫描classpath下的实现类，这时会加载到应用中的资源；

建议是将SandboxClassLoader的parent设置为ext classloader。

[dongchenxu]

确认问题，多谢指正。我在下一个版本迭代中修复这个问题

[oldmanpushcart]

已经发布解决，版本1.0.16