I have my JAVA_HOME set to:
C:\Program Files (x86)\Java\jdk1.6.0_18
After I run maven install
, I get this message from Eclipse:
Reason:
Unable to locate the Javac Compiler in:
C:\Program Files (x86)\Java\jre6\..\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.
I'm certain that this is the tricky part
Please ensure you are using JDK 1.4 or above and not a JRE
When I run configuration it's set to JRE6. How do I change it to JDK 1.6 which I have already installed?
I even tried to modify the plugin:
<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>
<executable>C:\Program Files (x86)\Java\jdk1.6.0_18\bin</executable>
</configuration>
</plugin>
Still I get the same error.
I use the Eclipse Maven plugin. How can I change from JRE to JDK in Eclipse?
You could try updating the JDK Eclipse is using, as follows:
Add and set the JRE in menu Window → Preferences... → Java → Installed JREs:
JRE type: Standard VM JRE
Name: jdk1.6.0_18
JRE home directory: C:\Program Files (x86)\Java\jdk1.6.0_18
If this is not the case, it's possible that the brackets and spaces in the JAVA_HOME path are causing issues. Try copying your JDK to a different location and updating your JAVA_HOME.
File eclipse.ini needs the vm
argument to point to your JDK location.
Edit the eclipse.ini
file to point to your JDK home, something as follows -
-vm
C:\Program Files\Java\jdk1.6.0_06
This ensures that Eclipse would be running off the JDK and not any default JRE on your machine.
You try:
Go to Preferences/Java/Installed JREs
and add one for the location "C:\Program Files\Java\jdk1.6.0_27\jre
or something like that.
Remove the one for C:\Program Files\Java\jre6
As you can see, the path C:\Program Files\Java\jre6\..\lib\tools.jar
only makes sense if the first part (til the /..) is replaced by C:\Program Files\Java\jdk1.6.0_27\jre
.
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