maven test cannot load cross-module resources/properties ?
- by smallufo
I have a maven mantained project with some modules .
One module contains one XML file and one parsing class.
Second module depends on the first module.
There is a class that calls the parsing class in the first module , but maven seems cannot test the class in the second module. Maven test reports :
java.lang.NullPointerException
at java.util.Properties.loadFromXML(Properties.java:851)
at foo.firstModule.Parser.<init>(Parser.java:92)
at foo.secondModule.Program.<init>(Program.java:84)
In "Parser.java" (in the first module) , it uses Properties and InputStream to read/parse an XML file :
InputStream xmlStream = getClass().getResourceAsStream("Data.xml");
Properties properties = new Properties();
properties.loadFromXML(xmlStream);
The "data.xml" is located in first module's resources/foo/firstModule directory , and it tests OK in the first module.
It seems when testing the second module , maven cannot correctly load the Data.xml in the first module .
I thought I can solve the problem by using maven-dependency-plugin:unpack to solve it . In the second module's POM file , I add these snippets :
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.1</version>
<executions>
<execution>
<id>data-copying</id>
<phase>test-compile</phase>
<goals>
<goal>unpack</goal>
</goals>
<configuration>
<artifactItems>
<artifactItem>
<groupId>foo</groupId>
<artifactId>firstModule</artifactId>
<type>jar</type>
<includes>foo/firstModule/Data.xml</includes>
<outputDirectory>${project.build.directory}/classes</outputDirectory>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
In this POM file , I try to unpack the first module , and copy the Data.xml to classes/foo/firstModule/ directory , and then run tests.
And indeed , it is copied to the right directory , I can find the "Data.xml" file in "target/classes/foo/firstModule" directory. But maven test still complains it cannot read the File (Properties.loadFromXML() throws NPE).
I don't know how to solve this problem.
I tried other output directory , such as ${project.build.directory}/resources , and ${project.build.directory}/test-classes , but all in vain...
Any advices now ? Thanks in advanced.
Environments : Maven 2.2.1 , eclipse , m2eclipse
