Thank you. I installed Cygwin on my Windows 11 laptop, and after overcoming some minor blocks, ran 'bash configure'. Am I correct in assuming that I also need to have Open JDK installed, not the Oracle JDK? I have Java 17 from Oracle installed.
configure: Found potential Boot JDK using JAVA_HOME configure: Potential Boot JDK found at /cygdrive/c/progra~1/java/jdk-17.0.4.1 is); ignoringot(TM) 64-Bit Server VM (build 17.0.4.1+1-LTS-2, mixed mode, sharing) configure: (Your Boot JDK version must be one of: 22 23 24) checking for javac... /cygdrive/c/progra~1/common~1/oracle/java/javapath/javac.exe checking for java... /cygdrive/c/progra~1/common~1/oracle/java/javapath/java.exe configure: Found potential Boot JDK using well-known locations (in /cygdrive/c/progra~1/java/jdk-17.0.4.1) configure: Potential Boot JDK found at /cygdrive/c/progra~1/java/jdk-17.0.4.1 is); ignoringot(TM) 64-Bit Server VM (build 17.0.4.1+1-LTS-2, mixed mode, sharing) configure: (Your Boot JDK version must be one of: 22 23 24) configure: Found potential Boot JDK using well-known locations (in /cygdrive/c/progra~1/java/jdk-11.0.10) configure: Potential Boot JDK found at /cygdrive/c/progra~1/java/jdk-11.0.10 is ); ignoringot(TM) 64-Bit Server VM 18.9 (build 11.0.10+8-LTS-162, mixed mode) configure: (Your Boot JDK version must be one of: 22 23 24) configure: Found potential Boot JDK using well-known locations (in /cygdrive/c/progra~1/java/javafx-sdk-11.0.2) configure: Potential Boot JDK found at /cygdrive/c/progra~1/java/javafx-sdk-11.0.2 did not contain bin/java; ignoring configure: Found potential Boot JDK using well-known locations (in /cygdrive/c/progra~1/java/jdk-17.0.4.1) configure: Potential Boot JDK found at /cygdrive/c/progra~1/java/jdk-17.0.4.1 is); ignoringot(TM) 64-Bit Server VM (build 17.0.4.1+1-LTS-2, mixed mode, sharing) configure: (Your Boot JDK version must be one of: 22 23 24) configure: Found potential Boot JDK using well-known locations (in /cygdrive/c/progra~1/java/jdk-11.0.10) configure: Potential Boot JDK found at /cygdrive/c/progra~1/java/jdk-11.0.10 is ); ignoringot(TM) 64-Bit Server VM 18.9 (build 11.0.10+8-LTS-162, mixed mode) configure: (Your Boot JDK version must be one of: 22 23 24) configure: Found potential Boot JDK using well-known locations (in /cygdrive/c/progra~1/java/javafx-sdk-11.0.2) configure: Potential Boot JDK found at /cygdrive/c/progra~1/java/javafx-sdk-11.0.2 did not contain bin/java; ignoring configure: Found potential Boot JDK using well-known locations (in /cygdrive/c/Program Files/Java/jdk-17.0.4.1) configure: Potential Boot JDK found at /cygdrive/c/Program Files/Java/jdk-17.0.4); ignoringot(TM) 64-Bit Server VM (build 17.0.4.1+1-LTS-2, mixed mode, sharing) configure: (Your Boot JDK version must be one of: 22 23 24) configure: Found potential Boot JDK using well-known locations (in /cygdrive/c/Program Files/Java/jdk-11.0.10) configure: Potential Boot JDK found at /cygdrive/c/Program Files/Java/jdk-11.0.1); ignoringot(TM) 64-Bit Server VM 18.9 (build 11.0.10+8-LTS-162, mixed mode) configure: (Your Boot JDK version must be one of: 22 23 24) configure: Found potential Boot JDK using well-known locations (in /cygdrive/c/Program Files/Java/javafx-sdk-11.0.2) configure: Potential Boot JDK found at /cygdrive/c/Program Files/Java/javafx-sdk-11.0.2 did not contain bin/java; ignoring configure: Could not find a valid Boot JDK. OpenJDK distributions are available at http://jdk.java.net/. configure: This might be fixed by explicitly setting --with-boot-jdk configure: error: Cannot continue configure exiting with result code 1 On Thu, Jun 27, 2024 at 9:06 AM <erik.joels...@oracle.com> wrote: > Hello Anil, > > Building in a VM on a laptop should be doable, but given how resource > intensive the JDK build is, you could run into problems like you describe. > You are most likely to get the best build performance running natively on > the machine and OS you have, so my recommendation is to build for Windows > in your case. If you still prefer to build for Linux, I think the best > option is to use WSL. See doc/building.md for instructions on how to build > for Linux in WSL. To build for Windows, I recommend installing Cygwin as > the most straightforward and well tested option for a POSIX support layer > on Windows. Once installed, you won't need to run any Windows commands as > Cygwin emulates a Linux/Unix environment. Again see doc/building.md for > instructions on how to install a build environment on Windows. > > /Erik > On 6/27/24 04:51, Anil wrote: > > I want to try out a small contribution to the JDK and want to build the > JDK first. > I have a Windows 11 laptop. > > I am not comfortable with the Windows commands and someone mentioned in > this forum that most of the building is done on Linux. > So I installed VirtualBox 7.0.18 and Ubuntu 24.04. however I was getting > black screens and freezing. I downgraded the Ubuntu to 222.04 and still got > black screens. I don't know why this is happening. > Any advice appreciated. > Anil > > On Tue, Jun 18, 2024, 7:25 PM Anil <1dropafl...@gmail.com> wrote: > >> Hello, >> I want to try out a small contribution to the JDK and wanted to >> build the JDK first, >> before I change the code. >> I forked and cloned the jdk following the instructions at The OpenJDK >> Developers' Guide – OpenJDK Developers’ Guide >> <https://openjdk.org/guide/#cloning-the-jdk> >> >> I am on Windows 11. >> These instructions are given on the page but I am unsure which of these >> to execute since I have already forked and cloned the git repo >> >> $ wget >> https://download.java.net/java/GA/jdk16/7863447f0ab643c585b9bdebf67c69db/36/GPL/openjdk-16_linux-x64_bin.tar.gz >> $ tar xzf openjdk-16_linux-x64_bin.tar.gz >> $ sudo apt-get install autoconf zip make gcc g++ libx11-dev libxext-dev >> libxrender-dev libxrandr-dev libxtst-dev libxt-dev libcups2-dev >> libfontconfig1-dev libasound2-dev >> $ cd jdk >> $ sh ./configure --with-boot-jdk=$HOME/jdk-16/ >> $ make images >> >> >> Do I still need to do the wget? >> Also, I wondered if I should use book jdk-17 instead of jdk-16 as in the >> instructions above. >> thanks, >> Anil >> >>
