-Xlint:all 和 maven 的问题 [英] Trouble with -Xlint:all and maven
问题描述
我正在尝试让 Maven 输出 lint 级别警告.我已经创建了一个小型测试程序,它应该生成一个关于从非静态上下文使用静态方法的警告,但是尽管有许多不同的插件配置选项,构建总是成功而没有任何警告!
I'm trying to get maven to output lint level warnings. I've created a small test program that should generate a warning about using a static method from a non-static context, but despite a number of different plugin configuration options, the build always succeeds without any warnings!
在进行了一些谷歌搜索后,我找到了使用编译器插件的compilerArgument(s)"属性的建议,但这对我来说似乎也不起作用.
After doing some googling, I found suggestions to use the 'compilerArgument(s)' attribute of the compiler plugin, but this doesn't seem to be working for me either.
这是我应该生成警告的示例程序:
Here's my sample program that should generate the warning:
package com.dahlgren;
/**
* Test space
*
*/
public class App {
public static void main( String[] args ) {
String foo = "foo";
// I want this to generate a compilation warning
System.out.println(foo.format("blah"));
}
}
这个程序应该发出警告,因为javadoc for Java 6 String::format 表示只存在此方法的静态版本.我想特别抓住这个案例,因为它过去曾咬我,编译器应该检测到它:-)
This program should issue a warning, as the javadoc for Java 6 String::format indicates that only static versions of this method exist. I want to catch this case specifically, as it has bitten me in the past and the compiler should detect it :-)
这是我的 pom 文件:
Here is my pom file:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.dahlgren</groupId>
<artifactId>JavaScratchSpace</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>JavaScratchSpace</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.0</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
<compilerArgument>-Xlint:all</compilerArgument>
<!--
<compilerArguments>
<Xlint:all />
</compilerArguments>
-->
<showWarnings>true</showWarnings>
<showDeprecation>true</showDeprecation>
</configuration>
</plugin>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
<archive>
<manifest>
<mainClass>com.dahlgren.App</mainClass>
</manifest>
</archive>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
我尝试了两种形式的 compilerArgument(s) 属性都无济于事.
I've tried both forms of the compilerArgument(s) attributes to no avail.
运行 mvn clean compile
产生以下输出:
Running mvn clean compile
yields the following output:
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building JavaScratchSpace 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.3:clean (default-clean) @ JavaScratchSpace ---
[INFO] Deleting file set: /work/fun/JavaScratchSpace/target (included: [**], excluded: [])
[INFO]
[INFO] --- maven-resources-plugin:2.3:resources (default-resources) @ JavaScratchSpace ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /work/fun/JavaScratchSpace/src/main/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.0:compile (default-compile) @ JavaScratchSpace ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 1 source file to /work/fun/JavaScratchSpace/target/classes
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.716s
[INFO] Finished at: Tue Mar 12 11:39:21 PDT 2013
[INFO] Final Memory: 8M/150M
[INFO] ------------------------------------------------------------------------
其他版本信息:
$ mvn --version && javac -version
Apache Maven 3.0.4
Maven home: /usr/share/maven
Java version: 1.6.0_24, vendor: Sun Microsystems Inc.
Java home: /usr/lib/jvm/java-6-openjdk-amd64/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "3.2.0-29-generic", arch: "amd64", family: "unix"
javac 1.6.0_24
推荐答案
这与您的来源对我有用".
This "works for me" with your sources.
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.buck</groupId>
<artifactId>mavenproject3</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>mavenproject3</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.0</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
<compilerArgument>-Xlint:all</compilerArgument>
<showWarnings>true</showWarnings>
<showDeprecation>true</showDeprecation>
</configuration>
</plugin>
</plugins>
</build>
</project>
我想你评论的原因是
<compilerArguments>
<Xlint:all />
</compilerArguments>
失败,因为all"标签将落入 XML 命名空间Xlint",这意味着整个标签Xlint:all"可能甚至没有被 Maven 配置解析器看到(处于不同的命名空间和所有).
is failing because of the XML namespace "Xlint" that the "all" tag would fall into, which means that the entire tag "Xlint:all" probably wasn't even seen by the maven configuration parser (being in a different namespace and all).
顺便说一下输出的相关行
By the way, the relevant lines of output
Compiling 1 source file to C:UsersedwbuckDocumentsNetBeansProjectsmavenproject3 argetclasses
bootstrap class path not set in conjunction with -source 1.6
com/buck/mavenproject3/App.java:[12,35] static method should be qualified by type name, java.lang.String, instead of by an expression
和我的环境
Apache Maven 3.0.4 (r1232337; 2012-01-17 02:44:56-0600)
Maven home: C:Program FilesNetBeans 7.2.1javamaven
Java version: 1.7.0_07, vendor: Oracle Corporation
Java home: C:Program Files (x86)Javajdk1.7.0_07jre
Default locale: en_US, platform encoding: Cp1252
OS name: "windows 7", version: "6.1", arch: "x86", family: "windows"
也许您遇到了特定于平台的错误?
Perhaps you stepped on a platform specific bug?
这篇关于-Xlint:all 和 maven 的问题的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!