Error in setting JAVA_HOME

Question

I have recently downloaded Maven and followed the instructions given on this this page. I already have ant installed on my machine. Now, if I want to verify that Maven is installed perfectly or not it is giving me error that JAVA_HOME is not set correctly, but same works perfectly fine for ANT.

For Maven I tried :
1. open cmd
2. type mvn -version
3. Error appeared :
C:\Users\Admin>mvn -version

ERROR: JAVA_HOME is set to an invalid directory.
JAVA_HOME = "C:\Program Files\Java\jre7\bin"
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation

For ANT I tried and worked :
1. open cmd
2. type mvn -version
3. Apache Ant(TM) version 1.9.1 compiled on May 15 2013

I went to the directory to check that java.exe is actually there in that directory or not and it was there. I checked the environment variables they set fine. I restarted the system and checked again but same problem. Please let me know what am I missing.

Answer 1

JAVA_HOME should point to jdk directory and not to jre directory. Also JAVA_HOME should point to the home jdk directory and not to jdk/bin directory.

Assuming that you have JDK installed in your program files directory then you need to set the JAVA_HOME like this:

JAVA_HOME="C:\Program Files\Java\jdkxxx"

xxx is the jdk version

Follow this link to learn more about setting JAVA_HOME:

http://docs.oracle.com/cd/E19182-01/820-7851/inst_cli_jdk_javahome_t/index.html

Answer 2

Do not include bin in your JAVA_HOME env variable

Answer 3

Follow the instruction in here.

JAVA_HOMEshould be like this

JAVA_HOME=C:\Program Files\Java\jdk1.7.0_07

Answer 4

JAVA_HOME = C:\Program Files\Java\jdk(JDK version number)

Example: C:\Program Files\Java\jdk-10

And then restart you command prompt it works.

Answer 5

Just remember to add quotes into the path if you have a space in your path to java home. C:\Program Files\java\javaxxx\ doesn't work but "C:\Program Files\java\javaxxx\" does.

Answer 6

The JAVA_HOME should point to the JDK home rather than the JRE home if you are going to be compiling stuff, likewise - I would try and install the JDK in a directory that doesn't include a space. Even if this is not your problem now, it can cause problems in the future!

Answer 7

You are pointing your JAVA_HOME to the JRE which is the Java Runtime Environment. The runtime environment doesn't have a java compiler in its bin folder. You should download the JDK which is the Java Development Kit. Once you've installed that, you can see in your bin folder that there's a file called javac.exe. That's your compiler.