Hi,
I'm kind of new in java, so probably my question is too obvious. The other day looking into /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.65-3.b17.fc21.x86_64 in my Fedora, I notice some duplicated binaries like bin/java and jre/bin/java.
I read about the difference between JRE and JDK, but I don't get why is necessary to keep both binaries if we only use one of them.
Hope you can help me to understand a little more.
Thanks a lot. Athenas
* Athenas Jimenez athenasjim@gmail.com [2015-11-16 10:44]:
Hi,
I'm kind of new in java, so probably my question is too obvious. The other day looking into /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.65-3.b17.fc21.x86_64 in my Fedora, I notice some duplicated binaries like bin/java and jre/bin/java.
I read about the difference between JRE and JDK, but I don't get why is necessary to keep both binaries if we only use one of them.
Hope you can help me to understand a little more.
We mimic how upstream lays out files (including dupes). As for why there are duplicate files in the first place -- I am not sure, it may be due to historical reasons when the files in the JDK (bin/) differed from the files in the JRE (jre/bin/). The docs don't shed much light on it other than saying that they are identical: https://docs.oracle.com/javase/8/docs/technotes/tools/windows/jdkfiles.html
Above link is for Windows but the layout stands for Linux as well.
Deepak
Thanks a lot. Athenas
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Hi Deepak,
After reading the documentation, I understand a little more.
Thanks a lot for your answer :) Athenas
On Mon, Nov 16, 2015 at 10:23 AM, Deepak Bhole dbhole@redhat.com wrote:
- Athenas Jimenez athenasjim@gmail.com [2015-11-16 10:44]:
Hi,
I'm kind of new in java, so probably my question is too obvious. The
other day
looking into /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.65-3.b17.fc21.x86_64
in my
Fedora, I notice some duplicated binaries like bin/java and jre/bin/java.
I read about the difference between JRE and JDK, but I don't get why is necessary to keep both binaries if we only use one of them.
Hope you can help me to understand a little more.
We mimic how upstream lays out files (including dupes). As for why there are duplicate files in the first place -- I am not sure, it may be due to historical reasons when the files in the JDK (bin/) differed from the files in the JRE (jre/bin/). The docs don't shed much light on it other than saying that they are identical: https://docs.oracle.com/javase/8/docs/technotes/tools/windows/jdkfiles.html
Above link is for Windows but the layout stands for Linux as well.
Deepak
Thanks a lot. Athenas
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java-devel@lists.fedoraproject.org
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Athenas Jimenez -
Deepak Bhole