I installed orekit and JAVA
JAVA: jdk-17.0.14_windows-x64_bin.msi
(I confimed java verison on cmd terminal)
Python version: Python 3.12.7
Python Environment: Spyder
I did conda install:conda-wrappers-1.1.3-py312h2e8e312_6.conda
The Error Massage:
orekit.initVM()
JavaError: <supper: <class ‘JavaError’>, >
Java stacktrace:
java.lang.NoSuchMethodError: runFinalizersOnExit
Could you give me suggestions to solve this problem?
Just to check, did you import the orekit module into python first?
# Import Orekit
import orekit
vm = orekit.initVM()
# Import the Orekit data from the master folder
from orekit.pyhelpers import setup_orekit_curdir
setup_orekit_curdir('/your/file/location/here/orekit-data')
Also, I would check your conda environment (depending on how installed conda it will be located in your home directory and be called something like miniconda or miniforge and make sure you have a version of java internal to your conda environment. If you installed orekit through conda that is where orekit will look first.
>>> import orekit
>>> orekit.__path__
['/home/baubin/miniforge3/lib/python3.12/site-packages/orekit']
>>> vm = orekit.initVM()
>>> vm.classpath
'/home/baubin/miniforge3/lib/python3.12/site-packages/orekit/orekit-12.2.jar:/home/baubin/miniforge3/lib/python3.12/site-packages/orekit/orekit-12.2-python-wrapper.jar:/home/baubin/miniforge3/lib/python3.12/site-packages/orekit/hipparchus-core-3.1.jar:/home/baubin/miniforge3/lib/python3.12/site-packages/orekit/hipparchus-fitting-3.1.jar:/home/baubin/miniforge3/lib/python3.12/site-packages/orekit/hipparchus-filtering-3.1.jar:/home/baubin/miniforge3/lib/python3.12/site-packages/orekit/hipparchus-geometry-3.1.jar:/home/baubin/miniforge3/lib/python3.12/site-packages/orekit/hipparchus-ode-3.1.jar:/home/baubin/miniforge3/lib/python3.12/site-packages/orekit/hipparchus-optim-3.1.jar:/home/baubin/miniforge3/lib/python3.12/site-packages/orekit/hipparchus-stat-3.1.jar:/home/baubin/miniforge3/lib/python3.12/site-packages/orekit/rugged-4.0-20240603.065802-2.jar:/home/baubin/miniforge3/lib/python3.12/site-packages/orekit/rugged-4.0-python-wrapper.jar'
And then you’ll see here that when I change my $JAVA_HOME variable, mvn switches which compiler it uses.
(base) baubin@aubin-5690:~/miniforge3$ JAVA_HOME="/home/baubin/miniforge3/"
(base) baubin@aubin-5690:~/miniforge3$ mvn --version
Apache Maven 3.9.9 (8e8579a9e76f7d015ee5ec7bfcdc97d260186937)
Maven home: /usr/local/apps/apache-maven-3.9.9
Java version: 1.8.0_412, vendor: Azul Systems, Inc., runtime: /home/baubin/miniforge3/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "6.8.0-52-generic", arch: "amd64", family: "unix"
(base) baubin@aubin-5690:~/miniforge3$ JAVA_HOME="/usr/lib/jvm/java-21-openjdk-amd64/"
(base) baubin@aubin-5690:~/miniforge3$ mvn --version
Apache Maven 3.9.9 (8e8579a9e76f7d015ee5ec7bfcdc97d260186937)
Maven home: /usr/local/apps/apache-maven-3.9.9
Java version: 21.0.6, vendor: Ubuntu, runtime: /usr/lib/jvm/java-21-openjdk-amd64
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "6.8.0-52-generic", arch: "amd64", family: "unix"
You’re not using mvn for this application, but it shows you how orekit might not be initializing the VM because it can’t find the location of your java through the conda interface.