Java SE Development Kit 8u112 on a 64-bit Windows 7 or Windows 8
Set the following user environment variables (== environment variables of type user variables)
JAVA_HOME :
C:\Program Files\Java\jdk1.8.0_112
JDK_HOME :
%JAVA_HOME%
JRE_HOME :
%JAVA_HOME%\jre
CLASSPATH :
.;%JAVA_HOME%\lib;%JAVA_HOME%\jre\lib
PATH :
your-unique-entries;%JAVA_HOME%\bin
(make sure that the longishyour-unique-entries
does not contain any other references to another Java installation folder.
Note for Windows users on 64-bit systems:
Progra~1 = 'Program Files'
Progra~2 = 'Program Files(x86)'
Notice that these environment variables are derived from the “root” environment variable JAVA_HOME
. This makes it easy to update your environment variables when updating the JDK. Just point JAVA_HOME
to the fresh installation.
There is a blogpost explaining the rationale behind all these environment variables.
Optional recommendations
- Add an user environment variable
JAVA_TOOL_OPTIONS
with value-Dfile.encoding="UTF-8"
. This ensures that Java (and tools such as Maven) will run with aCharset.defaultCharset()
ofUTF-8
(instead of the defaultWindows-1252
). This has saved a lot of headaches when wirking with my own code and that of others, which unfortunately often assume the (sane) default encoding UTF-8. - When JDK is installed, it adds to the system environment variable
Path
an entryC:\ProgramData\Oracle\Java\javapath;
. I anecdotally noticed that the links in that directory didn’t get updated during an JDK installation update. So it’s best to removeC:\ProgramData\Oracle\Java\javapath;
from thePath
system environment variable in order to have a consistent environment.