twitter-archive/hdfs-du

No Maven maven-compiler-plugin source/target version specified

faal opened this issue · 1 comments

faal commented

When compiling hdfs-du/pig I got an error:

[ERROR] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Compilation failure

/var/home/fabian/hdfs-du/pig/src/main/java/com/twitter/hdfsdu/pig/piggybank/ExtractSizes.java:[29,42] generics are not supported in -source 1.3
(use -source 5 or higher to enable generics)
public class ExtractSizes extends EvalFunc {

/var/home/fabian/hdfs-du/pig/src/main/java/com/twitter/hdfsdu/pig/piggybank/ExtractSizes.java:[34,29] ';' expected

/var/home/fabian/hdfs-du/pig/src/main/java/com/twitter/hdfsdu/pig/piggybank/ExtractSizes.java:[35,2] not a statement

/var/home/fabian/hdfs-du/pig/src/main/java/com/twitter/hdfsdu/pig/piggybank/ExtractSizes.java:[35,13] ';' expected

I resolved the problem by adding:

  •  <plugin>

  •    <artifactId>maven-compiler-plugin</artifactId>

  •    <version>2.3.2</version>

  •    <configuration>

  •      <source>1.6</source>

  •      <target>1.6</target>

  •      <compilerArgument></compilerArgument>

  •    </configuration>

  •  </plugin>

in pom.xml

alexanderfahlke commented

Just add the following lines in the plugins section in the pom.xml files

      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>2.0.2</version>
        <configuration>
          <source>1.6</source>
          <target>1.6</target>
        </configuration>
      </plugin>

The alternative is to set Java 1.6+ as the default for maven. This can be done by editing ~/.m2/settings.xml.