Well,I was trying to install forge on my linux machine(Kali-Linux).While on the was I was and still am unable to access the forge file(.jar).Due to an issue in which there is a lack of a command called “java”. The current problem I am having is sudo update-alternatives –install /usr/bin/java…
Tag: linux
Sha256 checksum difference between Java vs Linux
Am writing a application which calculate the checksum of file before sending it to downstream. At downstream application, linux shell script are used to process the files. It is noticed that checksum calculated from Java application doesn’t matches that calculated using Linux command ‘sha256sum…
Java SIGSEGV error when running from docker
I have no experience in Java and I can run my code successfully from the development. But only when I built the project and runs it from docker, I got an error like this. I have followed the error message to use ulimit -c unlimited by adding it in the docker command: docker run –ulimit core=-1 –en…
Could not load FFI provider when using module-info.java
my Linux Java application uses bluetooth devices. I use this library in order to communicate with bluez stack : https://github.com/hypfvieh/bluez-dbus. It worked very well until I added module-info.java to my client code. Suddenly I got this error: Exception in thread “main” java.lang.UnsatisfiedL…
special character “” is not work in Linux, converted into “?”
I consuming an api which is returning String with special characters, so I replace them with blank or some other user readable char. My code: The above code works fine for windows machine but in Linux “” converted into “?”, even other all special char converted into “?”. I…
How to fix a java.lang.UnsatisfiedLinkError for JSSC? (Needs hard float?)
I have a Java application in a JAR that needs to communicate via serial using JSSC (On Ubuntu in a SOPine board). It is throwing the following java.lang.UnsatisfiedLinkError exception: TL;DR: Skip to the answer if you don’t want to read several day’s worth of troubleshooting. I exported my JAR fil…
Does the JRE support posix TZ description rather than TZ name?
Java doesn’t appear to apply DST offset when the OS uses a POSIX time zone description rather than a time zone name. Is the use of a TZ description unsupported by the JRE or is this behavior a bug? More details… I’m working on a Linux (Debian) based system where the TZ environment variable i…
Presto cluster + how to tune the jvm.config according to memory resources
we are using presto cluster as distributed SQL query our cluster size 1 machine as coordinator machine 12 presto workers machines each machine is 64G memory size , and on each machine only presto application installed about the jvm.config on the workers , look like this and the jvm.config on the presto coordi…
Reading output after Linux cmd execution is going to infinite loop
I am executing a cmd from jsch , once command is completed I need to show the command output. while reading the command output its taking long time and its ns not coming from the while loop even after execution of command. The following is my code: Answer I have added the exit command at the end of the comman…
What version of Java is “1.8.0_191” on my Ubuntu install?
On of our (remote) developers needs to install FDT (an Eclipse based IDE) to compile some legacy ActionScript code. I’ve got FDT working on my Ubuntu 18.04 laptop just fine, but the dev is having trouble getting it to work on his Mac. When he has Java version 7, 8 or 9 installed he gets a message saying…