Adopting the OpenJDK for Delphi Android Development

Hoping to get some guidance on installation troubles — day 6 of troubleshooting

Hey yall, ill try and keep this quick but detailed. Prolly an easy answer here but i dont know much about pc’s except how to build em.
Need Java SE binary platform to open .jar files for me. OS is windows 10 home. Tried all online and offline downloads for Java and openjdk + ninite download on firefox/chome/IE11 — all of them put the installer in my file explorer, but when the installer finished, i cant find the java.exe anywhere or anything it supposedly downloaded.. tried searching for app extensions by file type and .jar only gives me the option to open via notepad, firefox or IE11. Turned off firewalls and malwarebytes, switched user profiles, even tried wiping my laptops old SSD to see if installing on a clean ssd would help.. nothing yet. Any idea what i could be doing wrong or what may be the issue?
submitted by burnett33 to javahelp [link] [comments]

Java installation troubles on Windows 10.. been troubleshooting for nearly 6 days. Anyone got an idea?

Whats up guys, hoping to get some help on this issue. Im no terminology/software/pc whiz by any means but I’ll try and make this as detailed as i can.
basically i just want to open some .JAR files so...i tried downloading both java and openJDK to my windows 10 64bit standard edition OS. I tried using firefox, chrome, and IE11 — all allowed me to download the installer just fine. I open and run the installer as admin with no firewalls or anything running that cld block it. The installer does its thing and tells me the installation is all set, but theres no new Java.exe or jdk file that gets added to my file explorer. I tried downloading it thru ninite, no dice. Tried downloading it to an old hard drive i wiped clean prior to download, nothing. Tried offline installation versions too. I checked in my “app use by file type” and scrolled to .JAR and the java SE binary platform or whatever its called isnt an option, just firefox, IE11, and notepad. No idea what to try next. Ask questions if clarification is needed. Thanks!
submitted by burnett33 to techsupport [link] [comments]

having a trouble to run first flutter app

Hi Every one ,when I'm trying to run my first app with flutter in android studio or in command line with flutter run it gives this error
Exception in thread "main" java.net.SocketException: Unexpected end of file from server at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:851) at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:678) at sun.net.www.protocol.http.HttpURLConnection.doTunneling(HttpURLConnection.java:2055) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:183) at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1564) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1492) at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:263) at org.gradle.wrapper.Download.downloadInternal(Download.java:58) at org.gradle.wrapper.Download.download(Download.java:44) at org.gradle.wrapper.Install$1.call(Install.java:61) at org.gradle.wrapper.Install$1.call(Install.java:48) at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAccessManager.java:65) at org.gradle.wrapper.Install.createDist(Install.java:48) at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:128) at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:61) Finished with error: Gradle task assembleDebug failed with exit code 1Exception in thread "main" java.net.SocketException: Unexpected end of file from server at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:851) at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:678) at sun.net.www.protocol.http.HttpURLConnection.doTunneling(HttpURLConnection.java:2055) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:183) at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1564) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1492) at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:263) at org.gradle.wrapper.Download.downloadInternal(Download.java:58) at org.gradle.wrapper.Download.download(Download.java:44) at org.gradle.wrapper.Install$1.call(Install.java:61) at org.gradle.wrapper.Install$1.call(Install.java:48) at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAccessManager.java:65) at org.gradle.wrapper.Install.createDist(Install.java:48) at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:128) at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:61) Finished with error: Gradle task assembleDebug failed with exit code 1 
the output of flutter doctor -v
[√] Flutter (Channel stable, v1.12.13+hotfix.9, on Microsoft Windows [Version 10.0.17134.1425], locale en-US) • Flutter version 1.12.13+hotfix.9 at C:\src\flutter • Framework revision f139b11009 (5 weeks ago), 2020-03-30 13:57:30 -0700 • Engine revision af51afceb8 • Dart version 2.7.2 [√] Android toolchain - develop for Android devices (Android SDK version 29.0.3) • Android SDK at C:\Users\win10\AppData\Local\Android\android-sdk • Android NDK location not configured (optional; useful for native profiling support) • Platform android-29, build-tools 29.0.3 • ANDROID_HOME = C:\Users\win10\AppData\Local\Android\android-sdk • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java • Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04) • All Android licenses accepted. [√] Android Studio (version 3.6) • Android Studio at C:\Program Files\Android\Android Studio • Flutter plugin version 45.1.1 • Dart plugin version 192.7761 • Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04) [√] VS Code, 64-bit edition (version 1.34.0) • VS Code at C:\Program Files\Microsoft VS Code • Flutter extension version 3.2.0 [√] Connected device (1 available) • Android SDK built for x86 • emulator-5554 • android-x86 • Android 8.1.0 (API 27) (emulator) • No issues found! 

PS: and i had another issue a while back so i changed flutter.gradle file like this
buildscript { repositories { google() jcenter() mavenCentral() } dependencies { classpath 'com.android.tools.build:gradle:3.5.0' } =============== how ever it didn t solve the problem i just create another project and the error turned into this ! 
submitted by blessedfirstone to flutterhelp [link] [comments]

Help me decipher our Java usage plz and how does new licensing restrictions apply?

We use Java in the following ways that I know of:
  1. Numerous systems we've purchased from turnkey vendors running intranet sites that function with Java code. Either Javascript on page or using downloadable JNLP files.
  2. Numerous rich desktop apps that are programmed in Java... usually have a /java/bin folder embedded in them with binaries that connect to internal app servers and whatnot
  3. We have 3 browsers that are deployed and we access the intranet sites with the JRE plugin... we currently have Java 8u241 deployed but it looks like that may not be a free version, does this need to be rolled back to 201?
Anyone the Oracle rep has been contacting us. I'd rather figure this out myself or with the communities help.
So on option 1 most of these sites never get updated. Sad but true (you guys have seen it, flame on if you feel the need). What are licensing concerns here if any?
On option 2, once again, these apps are never updated. That embedded Java inside stays on the same version, if I scan these workstations with these installed apps with a vuln scanner they tell me a vulnerable version of Java is on the system, but its only invoked by the app itself... doesn't worry me too much since they all connect to intranet app servers, etc. Are there any licensing concerns here?
Option 3 is the one that bothers me. We keep our browser plugins up-to-date. Java 6u27 was the catalyst that caused us to do that. We have a nice deployment routine for Java MSIs and an eloquent script in SCCM that keeps our Java plugins up-to-date. This has caused some issues with some of the sites... considering they are running on old, unsigned code... but we managed the JRE centrally via GPO and we push a site exception list out for intranet sites... this way we still have up-to-date JRE if they access Java enabled sites on the public internet through their browsers. Problem is I believe we aren't supposed to move beyond 8u201 here. I can't block Java in the browser or half our Java-enabled intranet sites will stop working.
Can I go openJDK here... does it have a plugin for browsers, or because of our usage are we going to have to get some kinda site license so we can keep Java up-to-date in our browsers.
My ecosystem has taken me years to put in place and fine-tune. half of my apprehension with contacting the Oracle rep back is I really don't want to try and get him to understand why we do what we do. We aren't devs, but we have a lot of infrastructure and a lot of it runs Java.
submitted by cl1ft to java [link] [comments]

Massive Arch Linux Install Guide

This is my own personal guide I refer to when I'm installing Arch with the KDE Plasma 5 desktop. It is too lengthy to post all at once, so I will keep adding new info sequentially. I'm posting this in the hope it will help Arch newbies, (which I am still myself). I am far from an Arch expert, but I'm sure some of the tips may be of assistance to newbies. I am older so I find it helps to record my install steps so I don't forget them. Please excuse the caps as my vision isn't that great anymore either.

INSTALL CORRECT USER SUDO PERMISSIONS - (substitute your username for htpc in all commands)

SU to root: as root# cp /etc/sudoers /etc/sudoers.bak as root# export VISUAL=nano open the sudoers file with nano
as root# EDITOR=nano visudo
or simply "visudo" if the visual environment has been set to nano:
as root# visudo

User privilege specification

add htpc to sudoers list

root ALL=(ALL) ALL htpc ALL=(ALL) ALL
VERY IMPORTANT: AS ROOT EDITOR=nano visudo (reopen sudoers file again to confirm file was modified correctly) visudo does not warn if incorrect syntax was used, it simply does not save the modifications. remove htpc from wheel group: redundent

;sudo gpasswd -d htpc wheel

INSTALL KDESU

Install kdesu command: (graphical frontend for the su command)
sudo pacman -S kdesu
Update your Arch install sudo pacman -Syu

AUTOLOGIN WORKING SETUP - ARCH LINUX KDE MINIMAL INSTALL

install: sddm
install process for autologin:
make a backup of /etc/sddm.conf
sudo cp /etc/sddm.conf /etc/sddmconf.bak
edit /etc/sddm.conf - review and alter each relevant line:
sudo nano -w /etc/sddm.conf
edit to refect all changes in sddm.conf backup file (many lines require editing).
or simply overwrite sddm.conf with the modified copy.
[Autologin] User=htpc Session=plasma.desktop

Install user folders:

sudo pacman -S xdg-user-dirs sudo xdg-user-dirs-update

BACKUP GRUB CONFIG FILES & RESTORE IF PROBLEMS ARISE AFTER UPDATING OR EDITING GRUB

cp /ussbin/grub-mkconfig /ussbin/grub-mkconfig.backup cp /etc/default/grub /etc/default/grub.backup cp -r /etc/grub.d /etc/grub.d.backup cp /boot/grub/grub.cfg /boot/grub/grub.cfg.backup
cp -f /ussbin/grub-mkconfig.backup /ussbin/grub-mkconfig cp -f /etc/default/grub.backup /etc/default/grub cp -rf /etc/grub.d.backup /etc/grub.d cp -f boot/grub/grub.cfg.backup boot/grub/grub.cfg
IF A RESTORE WAS PERFORMED, UPDATE GRUB AFTERWARDS:

sudo grub-mkconfig -o /boot/grub/grub.cfg

Install Linux LTS Kernal As A Fallback

pacaur -S linux-lts
==> WARNING: Possibly missing firmware for module: wd719x ==> WARNING: Possibly missing firmware for module: aic94xx
Searching suggests these errors can be ignored.
sudo grub-mkconfig
sudo grub-mkconfig -o /boot/grub/grub.cfg

FIX USB ISSUES ON AFFECTED GIGABYTE MOBO's

FIX USB ISSUES - GIGABYTE 970A-D3P MOBO

BIOS Version FC BIOS Date 06/01/2015 BIOS ID 8A02BG0A

WORKING SOUTION - FIX FOR DISABLED REAR USB PORTS & USB INITIALIZATION ERRORS

BACKUP GRUB CONFIG FILES AS OUTLINED ABOVE BEFORE EDITING ANY GRUB FILES
restart the computer and press delete to enter the uefi BIOS
plug your usb mouse, thumbdrive, and keyboard, (I was using a non USB KB fortunately), in the usb 2 ports.
Ensure IOMMU is enabled, XHCI handoff is enabled, EHCI handoff is disabled, USB Legacy support is enabled
save changes, and exit the BIOS
Then boot into Arch:
The wireless trackball would not work on any of the USB ports upon bootup. Fortunately I had KB function, as it was not a USB Keyboard.
press Alt++F2 to start Krunner
in the Krunner window input : yakuake
in the yakuake terminal enter the following command:
sudo nano /etc/default/grub
Edit the empty quotes in this line to read: GRUB_CMDLINE_LINUX="iommu=soft"
save the changes to grub.config (Ctrl+o + enter) and exit nano (Ctrl+x ).
save the modified grub config, by running the following command in terminal:
sudo grub-mkconfig -o /boot/grub/grub.cfg
then shut down the computer with this terminal command:
shutdown -h now
Restart the computer, press delete to get back into the uefi BIOS
Disable "iommu" in the bios, and restart.
all usb, 2.0 & 3.0 ports should work now.

EDIT PACMAN.CONF - ADD AUR & MULTILIB REPOSITORIES

Install pacaur to access the AUR
backup /etc/pacman.conf
sudo cp /etc/pacman.conf /etc/pacmanconf.bak
edit /etc/pacman.conf manually, or use the easy method further below:
sudo nano /etc/pacman.conf add to bottom of file:
[archlinuxfr] SigLevel = Never Server = http://repo.archlinux.f$arch
go to next step (enable multilib)
Before saving file enable multilib, by uncommenting the multilib entry
save file in nano - ctrl+o "enter" - ctrl+x

INSTALL REFECTOR & SYNC FASTEST MIRRORS:

sudo pacman -S reflector make a backup of /etc/pacman.d/mirrorlist sudo cp /etc/pacman.d/mirrorlist /etc/pacman.d/mirrorlist.bak

rate and sort the most recently synchronized mirrors by download speed, and overwrite the file /etc/pacman.d/mirrorlist:

SYNC 50 FASTEST MIRRORS WITH REFLECTOR- favorite mirrorupdate command:

sudo reflector --verbose -l 50 -p http --sort rate --save /etc/pacman.d/mirrorlist

Other Reflector Sync Options:

sudo reflector --verbose --latest 5 --sort rate --save /etc/pacman.d/mirrorlist
Select the 200 most recently synchronized HTTP or HTTPS mirrors, sort them by download speed, and overwrite the file /etc/pacman.d/mirrorlist:
sudo reflector --latest 200 --protocol http --protocol https --sort rate --save /etc/pacman.d/mirrorlist
Select the HTTPS mirrors synchronized within the last 12 hours and located in the US, sort them by download speed, and overwrite the file /etc/pacman.d/mirrorlist: sudo reflector --country 'United States' --age 12 --protocol https --sort rate --save /etc/pacman.d/mirrorlist

INSTALL REFLECTOR-TIMER - SYNC & AUTO-UPDATE FASTEST MIRRORS:

install and configure reflector-timer, to do weekly mirror list updates. See reflector Arch Wiki for full info.
pacaur -S reflector-timer (AUR) - A service and timer for the reflector mirrorlist upgrade.
The configuration files are located:
/usshare/reflector-timereflector.conf /home/htpc/.cache/pacaureflector-timereflector.conf
Contents in this file should be options of reflector. This way you have the total control over how reflector will be run.
For example:
--country China --country 'United States' --sort rate --save /etc/pacman.d/mirrorlist
Run reflector --help to see available options. Usage

enable timer

sudo systemctl enable reflector.timer

disable timer

sudo systemctl disable reflector.timer

update mirrorlist immediately

sudo systemctl start reflector.service

INSTALL PACAUR - (SAME COMMAND SYNTAX AS PACMAN)

PACAUR USAGE - INSTALL ONLY - (pacaur -S)

DO NOT USE FOR UNINSTALLING PROGRAMS - (pacman -R package_to_remove)

sudo pacman -S pacaur
pacaur -Syua update AUR database
pacaur -Syu update pacman database & install all program updates

COMMANDS FOR INSTALLING WITH PACMAN - (SUB PACAUR AND SOME WORK FOR AUR AS WELL)

Always run pacman as ROOT:
sudo pacman -U http://www.example.com/repo/example.pkg.tar.xz (install a foreign 'remote' package)
sudo pacman -U /package_path/package_name.pkg.tar.xz (Install a downloaded or a local package)
sudo pacman -R package_name (remove a package)
sudo pacman -Sy (sync the pacman database)
sudo pacman -Syy (force sync the pacman database)
sudo pacman -Syu (sync cache, and upgrade the system)
sudo pacman -Syyu (force sync the pacman database, and update the system)
Important Options:
--needed
If you select a package that has already been installed in your system, you may use '--needed' , otherwise this package will be reinstalled, even if it is already up to date.
--noconfirm
Bypass any and all “Are you sure?” messages. It’s not a good idea to do this unless you want to run pacman from a script.
--confirm
Cancels the effects of a previous --noconfirm.

COMMANDS FOR UNINSTALLING WITH PACMAN - (SUB PACAUR AND SOME WORK FOR AUR AS WELL)

sudo pacman -R package_name remove a package
sudo pacman -Rn package_name remove a package and its configuration files
sudo pacman -Rs package_name only remove those dependencies that are not needed by other packages
sudo pacman -Rdd package_name force removal of a package
sudo pacman -Rcn package_name removal of the package+deps
sudo pacman -Rcns for removal of the package+deps+deep deps (be very careful)
sudo pacman -Qdt list all orphans.
sudo pacman -Rsn $(pacman -Qdtq) remove all orphans
pacman -Sc delete older packages that are no longer installed.
sudo pacman -Scc to delete all cached packages.

MISC PACMAN & PACAUR RELATED COMMANDS :

sudo pactree -s package-name find all associated package dependencies (no AUR).
sudo pacman -Sw package_name download a package without installation to the cache folder
sudo pacman -Qu list packages that are out of date.
pacaur -Sc (instead of pacman -Sc) this will then extend cache cleaning into the AUR clone directory.
ls /vacache/pacman/pkg | grep package-name search packages downloaded with pacman stored in /vacache/pacman/pkg
expac -S '%%n: %D' package-name find all required package dependencies
sudo pacman -Qii package-name lists all required and optional dependencies (one of the best commands)
sudo pacman -Qo package-name list package that owns a particular file
sudo pacman -Qi package-name look in "Required By" field for package dependencies
sudo pacman -Qqen > pkglist.txt create a list in ~ of native installed packages (no aur) without version info
sudo pacman -Qqe > pkglist.txt create a list in ~ of all installed packages (incl aur) without version info
sudo pacman -S - < pkglist.txt auto reinstall all native packages (no aur) from the package backup list.
pacman -Si package_name provides detailed summary of a package
whoneeds package_name list all packages recursively depending on an installed package, use whoneeds from pkgtools AUR

AUR - SPECIFIC COMMANDS

SEARCH THE AUR: pacaur -Ss --aur package-name | grep package-name
Examples: pacaur -Ss --aur kde-services | grep kde-services pacaur -Ss --aur tvheadend | grep tvheadend
pacman -Qem List all installed packages from the AUR

Install Multimedia/Compatibility Codecs & CD & DVD Authoring Support

pacaur -S gst-plugins-base gst-plugins-good gst-plugins-ugly gst-plugins-bad --needed --noconfirm (should already be installed)
pacaur -S gstreamer0.10-bad-plugins gstreamer0.10-base gstreamer0.10-base-plugins gstreamer0.10-good gstreamer0.10-good-plugins gstreamer0.10-ugly gstreamer0.10-ugly-plugins qt4-gstreamer qt5-gstreamer --needed (conflicting dependencies: if first group is already installed)
IF ALL ELSE FAILS, & SOME OBSCURE CODECS WILL NOT PLAY:
Install full MPlayer binary codecs as an ultimate solution.
They can also be found in the "codecs" AUR and "codecs64" AUR packages. pacaur -S codecs --needed pacaur -S codecs64 --needed
pacaur -S a52dec cdrdao cdparanoia cdrkit dvd+rw-tools dcadec dvdauthor dvgrab exfat-utils fuse-exfat faac faad2 flac flashplugin gst-libav jasper lame libao libbluray libcdaudio libcdio-paranoia libcdr libdca libdvdcss libdvdread libdvdnav libdv libmad libmatroska libmediainfo libmpeg2 libtheora libvorbis libxv media-player-info mencoder mkvtoolnix-cli mkvtoolnix-gui transcode wavpack x264 x265 xvidcore --needed

Install True Type & Other Font Support

pacaur -S ttf-bitstream-vera ttf-inconsolata ttf-ubuntu-font-family ttf-dejavu ttf-freefont ttf-linux-libertine ttf-liberation opendesktop-fonts freetype2 lib32-freetype2 fontconfig cairo --needed --noconfirm
pacaur -S ttf-ms-fonts ttf-monaco ttf-noto ttf-vista-fonts --needed
FONTS RECOMMENDED FOR THE CONSOLE:
pacaur -S terminus-font --needed non ttf pacaur -S dina-font --needed non ttf pacaur -S adobe-source-code-pro-fonts adobe-source-sans-pro-fonts adobe-source-serif-pro-fonts --needed ttf fonts

Install File Utilities:

pacaur -S ark cpio isomd5sum lzop p7zip tar zip unzip unrar unarj unace zlib zziplib --needed --noconfirm

Install Printer Support -

pacaur -S cups cups-pdf foomatic-db-engine foomatic-db-nonfree foomatic-filters ghostscript gsfonts gutenprint lib32-libcups libpaper print-manager system-config-printer --needed
pacaur -S simple-scan Do not install , unless using a MFP that requires scanner support
Printer support for different brands :
pacaur -S hplip Drivers for HP DeskJet, OfficeJet, Photosmart, Business Inkjet and some LaserJet pacaur -S splix CUPS drivers for some of the SPL (Samsung Printer Language) printers pacaur -S samsung-unified-driver-common (AUR) - samsung unified printer & scanner drivers pacaur -S samsung-unified-driver-printer (AUR) - samsung unified printer & scanner drivers pacaur -S samsung-unified-driver (AUR) - samsung unified printer & scanner drivers pacaur -S epson-inkjet-printer-escpr (AUR) - epson-inkjet-printer drivers
then enable (one line at a time)…
sudo systemctl enable org.cups.cupsd.service sudo systemctl enable cups-browsed.service sudo systemctl start org.cups.cupsd.service sudo systemctl start cups-browsed.service

Set Up Static Ip Address: Best Method For Sharing Printers And Drives

Sometimes Network Manager will not save static info. If that happens, install nm-connection-editor to setup a static IP. pacaur -S nm-connection-editor run in krunner (alt+f2) nm-connection-editor ====> ipv4 ===> manual connection settings paste the following into nm-connection-editor & save: Choose a static address appropriate for your network: Static IP Address: 192.168.0.101 or 192.168.0.102 ,103, etc etc Netmask: 255.255.255.0 Gateway: 192.168.0.1 DNS server: 8.8.8.8 Search Domains: 8.8.4.4

INSTALL SAMBA

pacaur -S samba --needed
Copy the example smb.conf file, (or a preconfiguered backup copy) to /etc/samba/smb.conf:
sudo cp /etc/samba/smb.conf.default /etc/samba/smb.conf
edit configuration options, (if not already saved in a preconfigured backup file).

sudo systemctl enable smbd nmbd

sudo systemctl start smbd nmbd

sudo systemctl restart smbd nmbd Restart the service to apply any new changes.

sudo systemctl status smbd nmbd

sudo cp /etc/samba/smb.conf ~/.smb Backup smb.conf)

;sudo smbpasswd -a htpc DO NOT USE

(deprecated - use pdbedit command instead)

Configure & install the samba user & password, (current revised password install command).

sudo pdbedit -a -u htpc (substitute your username for htpc in all commands)

INSTALL OTHER NETWORKING COMPONENTS

pacaur -S kdenetwork-filesharing --needed (add windows style samba gui configuration plugin)
pacaur -S samba-mounter-git --needed (AUR) - adds network folders to dolphin with automount at login
pacaur -S smb4k --needed (smb4k samba configurator+samba-mounter-git for full samba support)
pacaur -S nm-connection-editor --needed (configure a network static ip)
pacaur -S cifs-utils --needed The in-kernel CIFS filesystem for mounting SMB/CIFS shares

CREATE A SAMBASHARE GROUP - (optional)

"Usershare" is a feature that gives non-root users the capability to add, modify, and delete their own share definitions in the GUI.
This creates the usershare directory in /valib/samba:

mkdir -p /valib/samba/usershare

This creates the group sambashare:

groupadd -r sambashare

This changes the owner of the directory to root and the group to sambashare:

chown root:sambashare /valib/samba/usershare

This changes the permissions of the usershare directory so that users in the group sambashare can read, write and execute files:

chmod 1770 /valib/samba/usershare

Set the following parameters in the smb.conf configuration file:
/etc/samba/smb.conf
[global] usershare path = /valib/samba/usershare usershare max shares = 100 usershare allow guests = yes usershare owner only = yes (I have changed this to no, from the arch recommendation of yes)
Add your user to the sambashare group. Replace your_username with the name of your user:

gpasswd sambashare -a htpc

Restart smbd.service and nmbd.service services.
sudo systemctl restart smbd nmbd
Log out and log back in. You should now be able to configure your samba share using GUI. For example, in Dolphin you can right click on any directory and share it on the network. If you want to share paths inside your home directory you must make it listable for the group others.
I believe it is also best practice to add the "sambashare" group to the ownership of any shared directories created for shares mounted though fstab. sudo mkdir /media/shares sudo chown rootc:sambashare /media/shares

sudo chmod 770 /media/shares

sudo cp /etc/samba/smb.conf ~/smb..conf

sudo pdbedit -a -u htpc

SMB.CONF

Configure smb.conf to add your shares

If you are using a firewall, do not forget to open required ports (usually 137-139 + 445).

Reduce the delay time to access SMB shared drives through Dolphin, (not mounted through fstab).

Solution: delete /etc/krb5.conf, or simply delete the contents of krb5.conf.

MOUNT 3TB NTFS DRIVE AS A REMOTE SHARE WITH THE FOLLOWING FSTAB ENTRY:

//192.168.0.101/3tbWin /media/shares cifs rw,username=htpc,password=sysadmin,iocharset=utf8,uid=1000,vers=3.0 0 0

requires "vers=3.0" option, without the "-o" argument in front to work.

Install OpenJDK & OpenJRE (or Sun Java) on Archlinux

install the version of java you wish to be the default first
pacaur -S jre8-openjdk jre8-openjdk-headless jdk8-openjdk
pacaur -S jre7-openjdk jre7-openjdk-headless jdk7-openjdk

pacaur -S jdk 8u131-1 (if alternate sun/oracle java 8 install is desired as well)

to find out your default java version:
archlinux-java status
if the default Java environment is already set to 'java-7-openjdk' it can be changed
See examples below to change the default Java version:
to change default to java-8-openjdk:
sudo archlinux-java set java-8-openjdk
to change default to sun/oracle java-8:
sudo archlinux-java set java-8-jdk
install tt font support forjava:
sudo nano -w /etc/environment
add the following line to /etc/environment:
export _JAVA_OPTIONS='-Dawt.useSystemAAFontSettings=on -Dswing.aatext=true'

To be continued
submitted by _big_guy to archlinux [link] [comments]

How To Install Java with Apt on Debian 9

Introduction

Java and the JVM (Java's virtual machine) are required for many kinds of software, including Tomcat, Jetty, Glassfish, Cassandra and Jenkins and Data Center Europe.
In this guide, you will install various versions of the Java Runtime Environment (JRE) and the Java Developer Kit (JDK) using apt . You'll install OpenJDK as well as official packages from Oracle. You'll then select the version you wish to use for your projects. When you're finished, you'll be able to use the JDK to develop software or use the Java Runtime to run software.

Prerequisites

To follow this tutorial, you will need:

Installing the Default JRE/JDK

The easiest option for installing Java is to use Web Hosting Europe the version packaged with Debian. By default, Debian 9 includes Open JDK, which is an open-source variant of the JRE and JDK.
This package will install OpenJDK version 1.8, which is compatible with Java 8. Java 8 is the current Long Term Support version and is still widely supported, though public maintenance ends in January 2019.
To install this version, first update the package index:
sudo apt update 
Next, check if Java is already installed:
java -version 
If Java is not currently installed SSD Web Hosting Romania, you'll see the following output:
Output-bash: java: command not found 
Execute the following command to install OpenJDK:
sudo apt install default-jre 
This command will install the Java Runtime Environment (JRE). This will allow you to run almost all Java software.
Verify the installation with:
java -version 
You'll see the following output:
Outputopenjdk version "1.8.0_181" OpenJDK Runtime Environment (build 1.8.0_181-8u181-b13-1~deb9u1-b13) OpenJDK 64-Bit Server VM (build 25.181-b13, mixed mode) 
You may need Shared Hosting Moldova the Java Development Kit (JDK) in addition to the JRE in order to compile and run some specific Java-based software. To install the JDK, execute the following command, which will also install the JRE:
sudo apt install default-jdk 
Verify that the JDK is installed by checking the version of javac , the Java compiler:
javac -version 
You'll see the following output:
Outputjavac 1.8.0_181 
Next, let's look at how to install Oracle's official JDK and JRE.

Installing the Oracle JDK

If you want to install the Oracle JDK, which is the official version distributed by Oracle, you'll need to add a new package repository for the version you'd like to use Cloud Computing Platform Europe.
First, install the software-properties-common package which adds the apt-get-repository command which you'll use to add additional repositories to your sources list.
Install software-properties-common with:
sudo apt install software-properties-common 
With this installed, you can install Oracle's Java.

Installing Oracle Java 8

To install Java 8, which is the current long-term support version, first add its package repository:
sudo add-apt-repository ppa:webupd8team/java 
When you add the repository, you'll see a message like this:
output Oracle Java (JDK) Installer (automatically downloads and installs Oracle JDK8). There are no actual Java files in this PPA. Important -> Why Oracle Java 7 And 6 Installers No Longer Work: http://www.webupd8.org/2017/06/why-oracle-java-7-and-6-installers-no.html Update: Oracle Java 9 has reached end of life: http://www.oracle.com/technetwork/java/javase/downloads/jdk9-downloads-3848520.html The PPA supports Ubuntu 18.04, 17.10, 16.04, 14.04 and 12.04. More info (and Ubuntu installation instructions): - for Oracle Java 8: http://www.webupd8.org/2012/09/install-oracle-java-8-in-ubuntu-via-ppa.html Debian installation instructions: - Oracle Java 8: http://www.webupd8.org/2014/03/how-to-install-oracle-java-8-in-debian.html For Oracle Java 10, see a different PPA: https://www.linuxuprising.com/2018/04/install-oracle-java-10-in-ubuntu-or.html More info: https://launchpad.net/~webupd8team/+archive/ubuntu/java Press [ENTER] to continue or ctrl-c to cancel adding it 
Press ENTER to continue. It will attempt to import some GPG signing keys, but it won't be able to find any valid ones VPS per Hour Europe:
Outputgpg: keybox '/tmp/tmpgt9wdvth/pubring.gpg' created gpg: /tmp/tmpgt9wdvth/trustdb.gpg: trustdb created gpg: key C2518248EEA14886: public key "Launchpad VLC" imported gpg: no ultimately trusted keys found gpg: Total number processed: 1 gpg: imported: 1 gpg: no valid OpenPGP data found. 
Execute the following command to add the GPG key for the repository source manually:
apt-key adv --keyserver keyserver.ubuntu.com --recv-keys C2518248EEA14886 
Then update your package list:
sudo apt update 
Once the package list updates, install Java 8:
sudo apt install oracle-java8-installer 
Your system Cloud VPS Moldova will download the JDK from Oracle and ask you to accept the license agreement. Accept the agreement and the JDK will install.

Installing Oracle Java 10

To install Oracle Java 10, first add its repository:
sudo add-apt-repository ppa:linuxuprising/java 
You'll see this message:
Output Oracle Java 10 installer Java binaries are not hosted in this PPA due to licensing. The packages in this PPA download and install Oracle Java 10 (JDK 10), so a working Internet connection is required. The packages in this PPA are based on the WebUpd8 Oracle Java PPA packages: https://launchpad.net/~webupd8team/+archive/ubuntu/java Created for users of https://www.linuxuprising.com/ Issues or suggestions? Leave a comment here: https://www.linuxuprising.com/2018/04/install-oracle-java-10-in-ubuntu-or.html More info: https://launchpad.net/~linuxuprising/+archive/ubuntu/java Press [ENTER] to continue or ctrl-c to cancel adding it 
Press ENTER to continue the installation Xeon Dedicated Server Europe. Like with Java 8, you'll see a message about invalid signing keys:
Outputgpg: keybox '/tmp/tmpvuqsh9ui/pubring.gpg' created gpg: /tmp/tmpvuqsh9ui/trustdb.gpg: trustdb created gpg: key EA8CACC073C3DB2A: public key "Launchpad PPA for Linux Uprising" imported gpg: Total number processed: 1 gpg: imported: 1 gpg: no valid OpenPGP data found. 
Execute this command to import the necessary key:
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys EA8CACC073C3DB2A 
Then update your package list:
sudo apt update 
Once the package list updates, install Java 10:
sudo apt install oracle-java10-installer 
Your system will download the JDK from Oracle and ask you to accept the license agreement. Accept the agreement and the JDK will install.
Now let's look at how to select which version of Java you want to use.

Managing Java

You can have multiple Java installations on one server. You can configure which version is the default for use Dedicated Server Romania on the command line by using the update-alternatives command.
sudo update-alternatives --config java 
This is what the output would look like if you've installed all versions of Java in this tutorial:
OutputThere are 3 choices for the alternative java (providing /usbin/java). Selection Path Priority Status ------------------------------------------------------------ 0 /uslib/jvm/java-10-oracle/bin/java 1091 auto mode * 1 /uslib/jvm/java-10-oracle/bin/java 1091 manual mode 2 /uslib/jvm/java-8-openjdk-amd64/jre/bin/java 1081 manual mode 3 /uslib/jvm/java-8-oracle/jre/bin/java 1081 manual mode Press  to keep the current choice[*], or type selection number: 
Choose the number associated with the Java version to use it as the default, or press ENTER to leave the current settings in place.
You can do this for other Java commands, such as the compiler (javac ):
sudo update-alternatives --config javac 
Other commands for which this command can be run include, but are not limited to: keytool , javadoc and jarsigner .
Let's set the JAVA_HOME environment variable next.

Setting the JAVA_HOME Environment Variable

Many programs written using Java use the JAVA_HOME environment variable to determine the Java installation location Dedicated Server in Moldova.
To set this environment variable, first determine where Java is installed. Use the update-alternatives command again:
sudo update-alternatives --config java 
This command shows each installation of Java along with its installation path:
Output Selection Path Priority Status ------------------------------------------------------------ 0 /uslib/jvm/java-10-oracle/bin/java 1091 auto mode * 1 /uslib/jvm/java-10-oracle/bin/java 1091 manual mode 2 /uslib/jvm/java-8-openjdk-amd64/jre/bin/java 1081 manual mode 3 /uslib/jvm/java-8-oracle/jre/bin/java 1081 manual mode 
In this case the installation paths are as follows:
These paths show the path to the java executable.
Copy the path for your preferred installation, excluding the trailing bin/java component. Then open /etc/environment using nano or your favorite text editor:
sudo nano /etc/environment 
At the end of this file, add Reseller VPS Europe the following line, making sure to replace the highlighted path with your own copied path:
/etc/environment
JAVA_HOME="/uslib/jvm/java-8-oracle/jre" 
Modifying this file will set the JAVA_HOME path for all users on your system.
Save the file and exit the editor.
Now reload this file to apply the changes to your Reseller KVM VPS US current session:
source /etc/environment 
Verify that the environment variable is set:
echo $JAVA_HOME 
You'll see the path you just set KVM VPS Europe:
Output/uslib/jvm/java-8-oracle/jre 
Other users will need to execute the command source /etc/environment or log out and log back in to apply this setting.

Conclusion

In this tutorial you installed VPS US West multiple versions of Java and learned how to manage them. You can now install KVM VPS Romania software which runs on Java, such as Tomcat, Jetty, Glassfish, Cassandra or Jenkins.
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Looking for Oracle OpenJDK builds? Oracle Customers and ISVs targeting Oracle LTS releases: Oracle JDK is Oracle's supported Java SE version for customers and for developing, testing, prototyping or demonstrating your Java applications. End users and developers looking for free JDK versions: Oracle OpenJDK offers the same features and performance as Oracle JDK under the GPL license. In this tutorial, I will show you how to install OpenJDK 13 Mac. You have to pay for Oracle JDK so it’s better to use OpenJDK. OpenJDK (Open Java Development Kit) is a free and open-source implementation of the Java Platform, Standard Edition (Java SE). [1] It is the result of an effort Sun Microsystems began in 2006. For a deeper dive, read the build instructions, which cover all the steps to build an OpenJDK with OpenJ9 and how to test your binary. Build it Tune it OpenJ9 optimizes your Java application out-of-the-box without needing a complicated set of command line options. Hack on the JDK itself, right here in the OpenJDK Community: Browse the code on the web, clone a Mercurial repository to make a local copy, and contribute a patch to fix a bug, enhance an existing component, or define a new feature. AdoptOpenJDK binaries are available for download in the following types of installation package: Archive files; Installers; The binaries are supported on the architectures and operating systems listed in Supported Platforms.If you're migrating to AdoptOpenJDK, you can learn about the differences between Oracle JDK and AdoptOpenJDK in our Migration Guide and any steps that you might need to take.

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