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Questions tagged [oraclejdk]

15 questions
133
votes
4 answers

What's the difference between odd and even Java updates?

I have JDK 8u60 installed. I checked the Oracle website today and they have released two versions simultaneously: 8u65 and 8u66. Both are public release versions. Why did they release two versions simultaneously? What conditions/reasons would make…
MorrisIriga
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33
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1 answer

Why does Oracle publish 2 versions of JDK each time?

At the time of this question, if you want to download Oracle JDK, you can download v8u91 AND v8u92. Why 2 versions ?
iXô
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26
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4 answers

How to know if I am using Open JDK or Oracle JDK?

Using java -version gives me this. java version "1.7.0_80" Java(TM) SE Runtime Environment (build 1.7.0_80-b15) Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode) Is it an OpenJDK or OracleJDK ?
Abhishek Singh
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19
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2 answers

visualvm fails with "No jdkhome found" on Ubuntu 15.10 with Oracle JDK

I installed Oracle JDK from the webupd8team/java PPA, and then installed the visualvm package. When starting visualvm, I get the following error message: [beni:~]$ visualvm No jdkhome found My $JAVA_HOME is set correctly to…
Benedikt Köppel
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3
votes
1 answer

Will lastest websphere liberty full platform run oracle java 8?

I am looking at the latest websphere liberty 8.5.5.7 full platform (https://developer.ibm.com/wasdev/downloads/liberty-profile-using-non-eclipse-environments/) and I wonder if it can run oracle java 8? I see on the download page that ibms java 8…
user1329339
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2
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1 answer

JMC doesn't show hot methods and packages

I'm trying to find problem methods in my server program with JMC. When I run server locally (on Windows) and start Flight Recorder from JMC - all works fine. JMC properly shows data in Code tab: Hot Methods, Call Tree, etc But when I trying to…
turbanoff
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2
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0 answers

Java - Proper way to check if a parameter is null

The following code is from Oracle's JDK java.util.logging.LogRecord public LogRecord(Level level, String msg) { // Make sure level isn't null, by calling random method. level.getClass(); this.level = level; message = msg; //…
Davide Rossetto
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2
votes
1 answer

Exceptions using latest Websphere Liberty release

I am looking at the latest WebSphere Liberty Profile 8.5.5.7 full platform and I have tried to deploy my existing ear with no luck. In the server.xml I have added: javaee-7.0 But in the ffdc…
user1329339
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1
vote
1 answer

Oracle JDK 1.8 supported on AIX server?

I am new to AIX environment want to check if we can install JDK 8 on AIX server by overriding the IBM JDK. If yes, how?.
vipin k.
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1
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0 answers

Why is parallel execution in multithreading much faster in OracleJDK when compared to OpenJDK?

I see in many instances that for some reason, OracleJDK seems to be doing much better when it comes to thread scheduling as compared to OpenJDK. It appears like the former is able to leverage multiple processor cores as compared to the latter. It…
sivaram
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1
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1 answer

Collection type of GC in Oracle or OpenJDK is precise or conservative?

I need to know what type of collector does GC of Oracle and OpenJDK uses, is it precise collector or conservative collector?
Aman Tandon
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1
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0 answers

Java - regarding Android Studio alongside PyCharm

I'm running LinuxMint and developing in Android Studio while using PyCharm for a class so I can code in Python. I have openJDK7 installed and I'm currently using it for both Android Studio and PyCharm. Whenever I open Android Studio, though, it…
Datz
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0
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0 answers

Oracle JDK 1.6 and Open JDK 1.6

I have been developing my application in the Oracle JDK 1.6 development environment. When I move it to a different environment the code started getting broken, until I figured out the culprit was the environment was configured to OpenJDK 1.6. After…
Yohannes Gebremariam
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0
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2 answers

How to uninstall openjdk on amazon ec2 micro instance running Redhat Linux

I have Installed OpenJdk on my redhat instance recently. Now am in need to go for Java Jdk. I saw some sites for replacement but none working for me. Thanks in advance..
Vikram
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1 answer

How compatible is OpenJRE/JDK 1.8.x vs OracleJRE/JDK 1.8.x?

Looks like all Linux distros only have available OpenJDK. How do them compare today? Can I just go with OpenJDK for server related things (Jenkins, Java web frameworks like Play, Vertx, etc)? Or should I still go with Oracle JDK/JRE to be safe?
daniels
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