I have a class that compiles fine using javac, but does not compile
when building with the maven-compiler-plugin.
Here's the class source. Basic java.
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
@Target( { ElementType.METHOD, ElementType.CONSTRUCTOR })
@Retention(RetentionPolicy.RUNTIME)
public @interface RequiresMutability {
boolean value() default true;
Class<? extends RuntimeException> throws_() default RuntimeException.class;
}
When compiling with the following command, everything works fine:
javac -source 1.6 -target 1.6 src/main/java/.../RequiresMutability.java
When I compile using Maven, it barfs:
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR]
/home/madams/dev/commons-trunk/domain/src/main/java/org/piercecountywa/commons/domain/annotations/RequiresMutability.java:[21,72]
incompatible types
found : java.lang.Class<java.lang.RuntimeException>
required: java.lang.Class<? extends java.lang.RuntimeException>
[INFO] 1error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Compilation failure
This project's pom has almost nothing in it besides the declaration of
its parent and a few of dependencies: one on another
application-specific artifact, one on OpenJPA, and one on junit (with
scope of test). Its parent pom configures the maven-compiler-plugin:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
Can anyone tell me why maven-compiler-plugin barfs on the class above
but javac likes it just fine?
$ mvn -version
Apache Maven 2.2.1 (r801777; 2009-08-06 12:16:01-0700)
Java version: 1.6.0_18
Java home: /home/madams/programs/java/jdk1.6.0_18/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux" version: "2.6.32-22-generic" arch: "amd64" Family: "unix"
-matthew
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