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Why Maven uses JDK 1.6 but my java -version is 1.7

java linux macos maven

user

edited 29 Dec, 2022

Ninja

asked 15 Sep, 2013

I have setup maven in my terminal, and when getting the version settings (using mvn -v) it seems it uses JDK 1.6, while I have JDK 1.7 installed. Is there anything wrong?

The commands I enter are these:

blues:helloworld Ninja$ java -version

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​x
 
blues:helloworld Ninja$ java -version​

java version "1.7.0_05"
Java(TM) SE Runtime Environment (build 1.7.0_05-b06)
Java HotSpot(TM) 64-Bit Server VM (build 23.1-b03, mixed mode)`

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java version "1.7.0_05"Java(TM) SE Runtime Environment (build 1.7.0_05-b06)Java HotSpot(TM) 64-Bit Server VM (build 23.1-b03, mixed mode)`​

blues:helloworld Ninja$ mvn -v

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blues:helloworld Ninja$ mvn -v​

Apache Maven 3.1.0 (893ca28a1da9d5f51ac03827af98bb730128f9f2; 2013-06-28 10:15:32+0800)
Maven home: /usr/local/Cellar/maven/3.1.0/libexec
Java version: 1.6.0_51, vendor: Apple Inc.
Java home: /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
Default locale: zh_CN, platform encoding: EUC_CN
OS name: "mac os x", version: "10.8.4", arch: "x86_64", family: "mac"

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Apache Maven 3.1.0 (893ca28a1da9d5f51ac03827af98bb730128f9f2; 2013-06-28 10:15:32+0800)Maven home: /usr/local/Cellar/maven/3.1.0/libexecJava version: 1.6.0_51, vendor: Apple Inc.Java home: /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/HomeDefault locale: zh_CN, platform encoding: EUC_CNOS name: "mac os x", version: "10.8.4", arch: "x86_64", family: "mac"​

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Answer

add the following to your ~/.mavenrc:

export JAVA_HOME=/Library/Java/JavaVirtualMachines/{jdk-version}/Contents/Home

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export JAVA_HOME=/Library/Java/JavaVirtualMachines/{jdk-version}/Contents/Home​

Second Solution:

echo export "JAVA_HOME=$(/usr/libexec/java_home)" >> ~/.bash_profile

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