以Server模式启动Derby服务竟然抛套接字权限异常:
access denied ("java.net.SocketPermission" "localhost:1527" "listen,resolve")
解决方案是编辑文件:
$JAVA_HOME/jre/lib/security/java.policy
添加如下规则，问题顺利解决！
grant {
permission java.net.SocketPermission "localhost:*", "listen,accept,connect,resolve";
完整的错误堆栈如下：
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➜ db-derby-10.10.1.1-bin bin/startNetworkServer
Picked up JAVA_TOOL_OPTIONS: -Dfile.encoding=UTF-8
Wed Feb 26 11:56:16 CST 2014 : 已使用基本服务器安全策略安装了 Security Manager。
Wed Feb 26 11:56:16 CST 2014 : access denied ("java.net.SocketPermission" "localhost:1527" "listen,resolve")
java.security.AccessControlException: access denied ("java.net.SocketPermission" "localhost:1527" "listen,resolve")
at java.security.AccessControlContext.checkPermission(AccessControlContext.java:372)
at java.security.AccessController.checkPermission(AccessController.java:559)
at java.lang.SecurityManager.checkPermission(SecurityManager.java:549)
at java.lang.SecurityManager.checkListen(SecurityManager.java:1134)
at java.net.ServerSocket.bind(ServerSocket.java:375)
at java.net.ServerSocket.<init>(ServerSocket.java:237)
at javax.net.DefaultServerSocketFactory.createServerSocket(ServerSocketFactory.java:231)
at org.apache.derby.impl.drda.NetworkServerControlImpl.createServerSocket(Unknown Source)
at org.apache.derby.impl.drda.NetworkServerControlImpl.access$000(Unknown Source)
at org.apache.derby.impl.drda.NetworkServerControlImpl$1.run(Unknown Source)
at org.apache.derby.impl.drda.NetworkServerControlImpl$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.derby.impl.drda.NetworkServerControlImpl.blockingStart(Unknown Source)
at org.apache.derby.impl.drda.NetworkServerControlImpl.executeWork(Unknown Source)
at org.apache.derby.drda.NetworkServerControl.main(Unknown Source)
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