maven 笔记（一） -

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maven 笔记（一）

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maven

maven JMS SUN .net log4j

今天使用maven的时候，遇到两个问题，第一个的错误如下：

Downloading: https://maven-repository.dev.java.net/nonav/repository/javax.jms/poms/jms-1.1.pom
347b downloaded  (jms-1.1.pom)
[WARNING] *** CHECKSUM FAILED - Checksum failed on download: local = 'c8f2a9fb3984c36fc4f4b6a53383b40b52cfec2c'; remote = '<!DOCTYPE' - RETRYING
Downloading: https://maven-repository.dev.java.net/nonav/repository/javax.jms/poms/jms-1.1.pom
347b downloaded  (jms-1.1.pom)
[WARNING] *** CHECKSUM FAILED - Checksum failed on download: local = 'c8f2a9fb3984c36fc4f4b6a53383b40b52cfec2c'; remote = '<!DOCTYPE' - IGNORING
[WARNING] POM for 'javax.jms:jms:pom:1.1:compile' is invalid.
Its dependencies (if any) will NOT be available to the current build.
Downloading: https://maven-repository.dev.java.net/nonav/repository/com.sun.jdmk/poms/jmxtools-1.2.1.pom
357b downloaded  (jmxtools-1.2.1.pom)
[WARNING] *** CHECKSUM FAILED - Checksum failed on download: local = 'b662aa01d49d8a571aa79f67a1d4a92a7d9c6359'; remote = '<!DOCTYPE' - RETRYING
Downloading: https://maven-repository.dev.java.net/nonav/repository/com.sun.jdmk/poms/jmxtools-1.2.1.pom
357b downloaded  (jmxtools-1.2.1.pom)
[WARNING] *** CHECKSUM FAILED - Checksum failed on download: local = 'b662aa01d49d8a571aa79f67a1d4a92a7d9c6359'; remote = '<!DOCTYPE' - IGNORING
[WARNING] POM for 'com.sun.jdmk:jmxtools:pom:1.2.1:compile' is invalid.
Its dependencies (if any) will NOT be available to the current build.
Downloading: https://maven-repository.dev.java.net/nonav/repository/com.sun.jmx/poms/jmxri-1.2.1.pom
353b downloaded  (jmxri-1.2.1.pom)
[WARNING] *** CHECKSUM FAILED - Checksum failed on download: local = 'de02d09af9d9fd6ebe64712281899f4765ff4bd7'; remote = '<!DOCTYPE' - RETRYING
Downloading: https://maven-repository.dev.java.net/nonav/repository/com.sun.jmx/poms/jmxri-1.2.1.pom
353b downloaded  (jmxri-1.2.1.pom)
[WARNING] *** CHECKSUM FAILED - Checksum failed on download: local = 'de02d09af9d9fd6ebe64712281899f4765ff4bd7'; remote = '<!DOCTYPE' - IGNORING
[WARNING] POM for 'com.sun.jmx:jmxri:pom:1.2.1:compile' is invalid.
Its dependencies (if any) will NOT be available to the current build.
Downloading: https://maven-repository.dev.java.net/nonav/repository/javax.jms/jars/jms-1.1.jar
Downloading: https://maven-repository.dev.java.net/nonav/repository/com.sun.jdmk/jars/jmxtools-1.2.1.jar
Downloading: https://maven-repository.dev.java.net/nonav/repository/com.sun.jmx/jars/jmxri-1.2.1.jar
347b downloaded  (jms-1.1.jar)
[WARNING] *** CHECKSUM FAILED - Checksum failed on download: local = 'd0b7ce08d257e8fefdc6ad0f0f0368635bbeb3d0'; remote = '<!DOCTYPE' - RETRYING
Downloading: https://maven-repository.dev.java.net/nonav/repository/javax.jms/jars/jms-1.1.jar
357b downloaded  (jmxtools-1.2.1.jar)
347b downloaded  (jms-1.1.jar)
353b downloaded  (jmxri-1.2.1.jar)
[WARNING] *** CHECKSUM FAILED - Checksum failed on download: local = '9e1dae7682d2b60d5b17b7d47e20d99d70ba65cf'; remote = '<!DOCTYPE' - RETRYING
Downloading: https://maven-repository.dev.java.net/nonav/repository/com.sun.jdmk/jars/jmxtools-1.2.1.jar
[WARNING] *** CHECKSUM FAILED - Checksum failed on download: local = 'd0b7ce08d257e8fefdc6ad0f0f0368635bbeb3d0'; remote = '<!DOCTYPE' - IGNORING
[WARNING] *** CHECKSUM FAILED - Checksum failed on download: local = 'a55ce8e95c9bb027e78557acc9e2b973fe3c611e'; remote = '<!DOCTYPE' - RETRYING
Downloading: https://maven-repository.dev.java.net/nonav/repository/com.sun.jmx/jars/jmxri-1.2.1.jar
357b downloaded  (jmxtools-1.2.1.jar)
353b downloaded  (jmxri-1.2.1.jar)
[WARNING] *** CHECKSUM FAILED - Checksum failed on download: local = '9e1dae7682d2b60d5b17b7d47e20d99d70ba65cf'; remote = '<!DOCTYPE' - IGNORING
[WARNING] *** CHECKSUM FAILED - Checksum failed on download: local = 'a55ce8e95c9bb027e78557acc9e2b973fe3c611e'; remote = '<!DOCTYPE' - IGNORING
[INFO] [compiler:compile {execution: default-compile}]
[INFO] Compiling 4 source files to /home/eric/workspace/Whale/target/classes
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Compilation failure
error: error reading /home/eric/.m2/repository/javax/jms/jms/1.1/jms-1.1.jar; error in opening zip file
error: error reading /home/eric/.m2/repository/com/sun/jdmk/jmxtools/1.2.1/jmxtools-1.2.1.jar; error in opening zip file
error: error reading /home/eric/.m2/repository/com/sun/jmx/jmxri/1.2.1/jmxri-1.2.1.jar; error in opening zip file

进入本地repository中，这三个包也打不开。远程请教了以前的牛人同事，他说校验错误，说明这个这三个文件出问题了。可以把这三个包下回来install到本地repository中去。后来在下载这三个包的时候，从网上发现有人也遇到了同样得问题。问题的原因是：log4j1.2.15依赖jms-1.1.jar，jmxtools-1.2.1.jar和jmxri-1.2.1.jar这三个包。

解决方法1.更换log4j的版本，据说只有1.2.15依赖这三个包，我更换成了1.2.16，没有问题。

解决方法2.在配置pom的时候把这三个包exclude掉。（未验证）

第二个问题比较菜鸟。

 generics are not supported in -source 1.3
 annotations are not supported in -source 1.3

牛人同事告诉我：配置compile plugin为1.6。后来在官网上找到了下面得配置：

<plugin>
	<groupId>org.apache.maven.plugins</groupId>
	<artifactId>maven-compiler-plugin</artifactId>
	<version>2.3.1</version>
	<configuration>
		<source>1.6</source>
		<target>1.6</target>
	</configuration>
</plugin>

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