MNEMONIC-697: Upgrade OpenJDK in Ubuntu Docker
diff --git a/docker/docker-Ubuntu/Dockerfile b/docker/docker-Ubuntu/Dockerfile
index 901879a..15afdb4 100644
--- a/docker/docker-Ubuntu/Dockerfile
+++ b/docker/docker-Ubuntu/Dockerfile
@@ -19,13 +19,13 @@
 MAINTAINER Yanhui Zhao (yanhui.zhao@outlook.com)
 
 RUN apt-get -y update && apt-get install -y software-properties-common && add-apt-repository ppa:openjdk-r/ppa && apt-get -y update && \
-    apt-get install -y openjdk-15-jdk cmake check git pkg-config autoconf man build-essential gcc g++ uuid-dev pandoc devscripts flex doxygen maven
+    apt-get install -y openjdk-17-jdk cmake check git pkg-config autoconf man build-essential gcc g++ uuid-dev pandoc devscripts flex doxygen maven
 
 RUN apt-get install -y libndctl-dev libpmem-dev libvmem-dev libpmemobj-dev
 
 RUN apt-get clean
 
-ENV JAVA_HOME /usr/lib/jvm/java-15-openjdk-amd64
+ENV JAVA_HOME /usr/lib/jvm/java-17-openjdk-amd64
 ENV PATH $JAVA_HOME/bin:$PATH
 
 WORKDIR /ws