Develop Reference

Can I compile OpenCV source code from a MacBook M1 to create libraries ( like core and java ) for intel based MacBook

I've already built and created the libraries I needed for my project for Windows [.dll] and Mac OS X (Arm based) [.dylib]. The fact is that, given the processor difference, I don't know If I can make the *.so libraries ( at least I think that the extension of the libraries , from what I've found after searching A LOT ).
If someone knows and says otherwise, I'll take as given that it's not possible to do it.
The method I've used is the one via cmake.
Example :
cmake -DCMAKE_SYSTEM_PROCESSOR=arm64 \
-DCMAKE_OSX_ARCHITECTURES=arm64 \
-DWITH_OPENJPEG=OFF \
-DWITH_IPP=OFF \
-D CMAKE_BUILD_TYPE=Release \
-D CMAKE_INSTALL_PREFIX=/usr/local/opencv \
-D JAVA_INCLUDE_PATH=$JAVA_HOME/include \
-D JAVA_AWT_LIBRARY=$JAVA_HOME/jre/lib/amd64/libawt.so \
-D JAVA_JVM_LIBRARY=$JAVA_HOME/jre/lib/arm/server/libjvm.so \
-D OPENCV_EXTRA_MODULES_PATH=../opencv_contrib-4.5.5/modules \
-D WITH_FFMPEG=OFF \
-D WITH_OPENCL=OFF \
-D BUILD_opencv_java=ON \
-D OPENCV_ENABLE_NONFREE=ON \
-D BUILD_opencv_python2=OFF \
-D BUILD_opencv_python3=OFF \
-D BUILD_ZLIB=OFF \
-D BUILD_EXAMPLES=ON ../opencv-4.5.5
I know the question is almost stupid, but I'll still want to be sure. Thank you guys <3

I am getting error when running Dockerfile

I am getting error like find: '/opt/ibm/wlp/bin': No such file or directory when building a docker image
FROM centos:latest
RUN yum -y install wget unzip;
ENV JAVA_VERSION 1.8.0_sr5fp7
ENV LIBERTY_VERSION 17.0.0_04
RUN export BASE_URL="https://public.dhe.ibm.com/ibmdl/export/pub/systems/cloud/runtimes/java/meta/sdk/linux/x86_64/index.yml"; \
wget -q -U UA_IBM_JAVA_Docker -O /tmp/index.yml ${BASE_URL}; \
JAVA_URL=$(cat /tmp/index.yml | sed -n '/'${JAVA_VERSION}'/{n;p}' | sed -n 's/\s*uri:\s//p' | tr -d '\r'); \
wget -q -U UA_IBM_JAVA_Docker -O /tmp/ibm-java.bin ${JAVA_URL}; \
echo "INSTALLER_UI=silent" > /tmp/response.properties; \
echo "USER_INSTALL_DIR=/opt/ibm/java" >> /tmp/response.properties; \
echo "LICENSE_ACCEPTED=TRUE" >> /tmp/response.properties; \
mkdir -p /opt/ibm; \
chmod +x /tmp/ibm-java.bin; \
/tmp/ibm-java.bin -i silent -f /tmp/response.properties; \
rm -f /tmp/response.properties; \
rm -f /tmp/index.yml; \
rm -f /tmp/ibm-java.bin; \
cd /opt/ibm/java/jre/lib; \
rm -rf icc;
ENV JAVA_HOME=/opt/ibm/java/jre \
PATH=/opt/ibm/java/jre/bin:$PATH
RUN echo ${JAVA_HOME}; \
echo ${PATH};
RUN export LIB_BASE_URL="https://public.dhe.ibm.com/ibmdl/export/pub/software/websphere/wasdev/downloads/wlp/index.yml"; \
wget -q -U UA-IBM-WebSphere-Liberty-Docker -O /tmp/index.yml ${LIB_BASE_URL}; \
LIBERTY_URL=$(cat /tmp/index.yml | sed -n '/'${LIBERTY_VERSION}'/{n;p}' | sed -n 's/\s*uri:\s//p' | tr -d '\r'); \
wget $LIBERTY_URL -U UA-IBM-WebSphere-Liberty-Docker -O /tmp/wlp.zip; \
unzip -q /tmp/wlp.zip -d /opt/ibm; \
rm -f /tmp/wlp.zip;
ENV PATH=/opt/ibm/wlp/bin:$PATH
LABEL "ProductID"="fbf6a96d49214c0abc6a3bc5da6e48cd"; \
"ProductName"="WebSphere Application Server Liberty"; \
"ProductVersion"="17.0.0.4";
RUN find /opt/ibm/wlp/bin -type f -exec chmod 777 {} \;
RUN /opt/ibm/wlp/bin/server create;
ADD server.xml /opt/ibm/wlp/usr/servers/defaultServer/server.xml
RUN /opt/ibm/wlp/bin/installUtility install --acceptLicense webProfile-7.0 localConnector-1.0 jndi-1.0 adminCenter-1.0 appSecurity-2.0 concurrent-1.0 \
ldapRegistry-3.0 javaMail-1.5 jdbc-4.1 jaxrs-2.0 jpa-2.1 ssl-1.0 webCache-1.0;
ADD lib /opt/ibm/wlp/usr/servers/defaultServer/lib
ADD apps /opt/ibm/wlp/usr/servers/defaultServer/apps
ADD resources /opt/ibm/wlp/usr/servers/defaultServer/resources
ADD server.xml /opt/ibm/wlp/usr/servers/defaultServer/server.xml
EXPOSE 9080
EXPOSE 9043
CMD ["/opt/ibm/wlp/bin/server", "run", "defaultServer"]
getting below message : The command '/bin/sh -c find /opt/ibm/wlp/bin -type f -exec chmod 777 {} \;' returned a non-zero code: 1
not sure what is wrong ,please help

How do you disable "$HOME/.java_usagetracker" from being created?

According to Java's documentation:
https://docs.oracle.com/javacomponents/usage-tracker/overview/toc.htm#JSUTO-GUID-6642AAD5-85A1-462F-9D77-09A52DF72404
Java Usage Tracker should be disabled by default. But that is not the case for Java 8u161 or greater.

Setting com.oracle.usagetracker.track.last.usage=false in /etc/oracle/java/usagetracker.properties does the trick.
Dockerfile example:
FROM centos:7
ARG JAVA_VERSION=8u171
ARG JAVA_BUILD=b11
ARG JAVA_HASH=512cd62ec5174c3487ac17c61aaa89e8
ENV JAVA_HOME=/usr/java/default
RUN mkdir /usr/java \
&& curl --create-dirs -L --retry 2 --retry-delay 2 --connect-timeout 30 \
--cookie "oraclelicense=accept-securebackup-cookie;gpw_e24=http://edelivery.oracle.com" \
http://download.oracle.com/otn-pub/java/jdk/${JAVA_VERSION}-${JAVA_BUILD}/${JAVA_HASH}/jdk-${JAVA_VERSION}-linux-x64.rpm \
-o /tmp/jdk-linux-x64.rpm \
&& rpm -ivh /tmp/jdk-linux-x64.rpm \
&& rm -f /tmp/jdk-linux-x64.rpm \
&& mkdir -p /etc/oracle/java/ \
&& echo "com.oracle.usagetracker.track.last.usage=false" > /etc/oracle/java/usagetracker.properties

pipe zcat stdin into java program that takes multiple inputs

I have a gzipped file that is too large to unzip and save. I'm looking to use zcat to unzip it and feed it into a java program that takes in multiple inputs. This program has the format:
java -jar GenomeAnalysisTK.jar \
-T FastaAlternateReferenceMaker \
-R refgen.fa \
-o output.fasta \
-V data.vcf
Where after -V is supposed to be the input from the gzipped file. I've tried something like:
zcat data.vcf.gz | java -jar GenomeAnalysisTK.jar \
-T FastaAlternateReferenceMaker \
-R refgen.fa \
-o output.fasta \
-V
But this does not work. How can I solve this issue?

Double jsvc process

I started tomcat through jsvc as daemon. But after jsvc started, I see double jsvc process.
Process had started by daemon.sh with option start:
start )
"$JSVC" $JSVC_OPTS \
-java-home "$JAVA_HOME" \
-java-home /usr/lib/jvm/jre1.7.0_11 \
-user $TOMCAT_USER \
-pidfile "$CATALINA_PID" \
-wait 10 \
-outfile "$CATALINA_OUT" \
-errfile "&1" \
-classpath "$CLASSPATH" \
"$LOGGING_CONFIG" $JAVA_OPTS $CATALINA_OPTS \
-Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" \
-Dcatalina.base="$CATALINA_BASE" \
-Dcatalina.home="$CATALINA_HOME" \
-Djava.io.tmpdir="$CATALINA_TMP" \
$CATALINA_MAIN
exit $?

Assuming your question is: Why do I get two processes? This could be because jsvc starts a main daemon process and a child process for the actual work.