Netty编译错误

Question

我无法再编译netty了。 mvncompile 给出以下内容：

[INFO] --- maven-compiler-plugin:2.3.2:compile (default-compile) @ netty-common ---
[INFO] Compiling 60 source files to /home/dennis/git/netty4/common/target/classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] Unable to locate the Javac Compiler in:
  /opt/java/jre1.6.0_30/../lib/tools.jar
Please ensure you are using JDK 1.4 or above and
not a JRE (the com.sun.tools.javac.Main class is required).
In most cases you can change the location of your Java
installation by setting the JAVA_HOME environment variable.
[INFO] 1 error

我的配置：

export JAVA_HOME=/opt/java/jre1.6.0_30
export M2_HOME=/opt/apache-maven-3.0.3
export M2=$M2_HOME/bin
export PATH=$JAVA_HOME/bin:$PATH
export PATH=$M2:$PATH

我的路径的一部分：

$echo $PATH
/opt/java/jre1.6.0_30/bin:/opt/apache-maven-3.0.3/bin:/opt/git/bin:[...]

Maven 状态：

dennis@denpc:~/git/netty4$ mvn --version
Apache Maven 3.0.3 (r1075438; 2011-02-28 18:31:09+0100)
Maven home: /opt/apache-maven-3.0.3
Java version: 1.6.0_30, vendor: Sun Microsystems Inc.
Java home: /opt/java/jre1.6.0_30
Default locale: de_DE, platform encoding: UTF-8
OS name: "linux", version: "2.6.24-30-generic", arch: "i386", family: "unix"

有什么想法吗？

Answer 1

请确保您使用的是 JDK 1.4 或更高版本并且
不是 JRE [...]

这可能与您上面帖子中给出的错误中的这一行有关。我相信您可能还想确保您也拥有 JDK 集的路径。否则，它只是查找 JRE (jre1.6.0_30)。

注意：JDK 可能会在您的 Java SDK 文件夹中找到。