maven编译文件错误 ERROR resolving version for plugin 'org.codehaus.mojo:tomcat-maven-plugin'
2018-06-20 13:59:38
[ERROR] Error resolving version for plugin 'org.codehaus.mojo:tomcat-maven-plugin' from the repositories [local (/root/.m2/repository), central (https://repo.maven.apache.org/maven2)]: Plugin not found in any plugin repository -> [Help 1]
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Debian中ocserv的配置不成功寻找connection attempt has timed out. please verify internet connectivity.
2018-04-04 15:36:47
ocserv链接timeout connection 。connection attempt has timed out. please verify internet connectivity.
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java.util.ConcurrentModificationException
2018-01-25 16:48:42
在前面一篇文章中提到，对Vector、ArrayList在迭代的时候如果同时对其进行修改就会抛出java.util.ConcurrentModificationException异常。下面我们就来讨论以下这个异常出现的原因以及解决办法。
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nested exception is org.springframework.jdbc.UncategorizedSQLException
2018-01-10 17:10:17
java.lang.OutOfMemoryError: unable to create new native thread
java.lang.Thread.start0(Native Method)
java.lang.Thread.start(Thread.java:713)
java.util.Timer.(Timer.java:176)
java.util.Timer.(Timer.java:146)
com.mysql.jdbc.ConnectionImpl.getCancelTimer(ConnectionImpl.java:358)
com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2154)
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