I already have installed in my linux Ubuntu the java 8 (Update 121), but I need to install the java 7 RE for a specific software that I need to use. I want the java 7 only to use with this tool, and I do not want to make any modification on my default java 8. How to do that?
Tag: java
Uploaded file fails to save with no exception thrown in Java – Jersey
I’m trying to upload a file to a restful – Jersey web service deployed on Tomcat server that is a receives uploaded files as multipart . It works fully correct on Windows OS but on Linux the file fails to save with no exception thrown from the following saving method : The multipart variable is already declared in the web.xml
Jenkins API response tuning
We have built a dashboard on top of Jenkins which enables users to see only jobs relevant to the project and also trigger a build. The UI is built using reactJS and the backend is JAVA REST WebServices. WebService calls the Jenkins api to fetch Job information and converts the data to JSON for feeding the UI. At present we
Hadoop command does not execute from java prcoessbuilder
I have this script. When I execute it from putty, it works properly, but it fails when we execute it using java ProcessBuilder. It fails with “Hadoop command not found” error. Below is the Java code, which I am using to execute script. Answer Problem was the other script. Script one(1) starts Java application, which internally calls second script(s2), which
Can not connect to MySQL with Eclipse java IDE on linux ubuntu, but with a code that worked perfectly on windows
I was working on a small project (mostly for fun) on java with Eclipse Neon (and window builder), in which I had to connect to MySQL and retrieve certain info. In windows it worked great, I was able to connect, get the info, etc. But then I switched to Linux Ubuntu 16.04 and it just won’t connect to MySQL. I
Linux Shutdown and Java Shutdown Hook
When I run a Java process in background and I shut down the computer (ArchLinux), will the computer wait some seconds for the termination of my shutdown-hook in Java? Answer A shutdown hook will be called when a call to close the JVM is made. However, there is no guarantee that the hook will be called. The hook might not/won’t
Titan loading problems with elastic search
I’m using the following code to load Titan: loading dependencies with gradle: My project directory is: /home/ray/IdeaProjects/BAG – Byzantine fault-tolerant Architecture for Graph database/ my titan is in this project directory in the folder “TITAN” That’s what I set in the Directory variable. Still on start it always crashes: My gradle file: Answer You should be more specific on your
Java1.5 ExitOnOutOfMemory?
I am having a problem making my java instance recognize command line CrashOnOutOfMemoryError or ExitOnOutOfMemoryError any ideas to get the supported command line that will do the required feature Regards, Answer Unless you’re using Java 1.8 (specifically, 1.8u92 or newer), these command-line options are unavailable to you. The only realistic thing one could do would be to catch either an
java is not working in linux. Why?
Currently working on Linux Cinnamon. I have unistall/removed Open JDK from my local drive. Then I checked java -version via terminal and gives – After that following the installation guide to install oracle jdk 8 for linux. Then I just checked java -version command through [I just unpack jdk to /opt/java]- I set my environment variable JAVA_HOME=”/opt/java/jdk1.8.0_112″ [excluding bin] to
Extract class names from JAR with special formatting
How would I extract all the available classes from a Jar file and dump the output, after some simple processing, to a txt file. For example, if I run jar tf commons-math3-3.1.6.jar a subset of the output would be: I would like to convert all / to . And all $ to . Finally I would also like to remove