In Java 8 we got a new command line tool called jdeps to know the Java dependencies. It is a nice tool to do static analysis and find out the .class/jar dependencies.
For example, I have a class and wanted to know the dependencies summary as DOT (graph description language) format I can get it by issuing the below jdeps command.
D:\>jdeps -dotoutput . -cp jsoup-1.7.2.jar D:\classes\org\smarttechies\harvester\ProductInfoHarvester.class
Here -dotoutput <dir> option generates the DOT file for given class/jar archive and a summary DOT file under the given directory.
From the above example, jdeps generates package level dependency. DOT visualization is given below.
If we want the verbose class level dependency, we can generate by passing -v option to the jdpes.
D:\>jdeps -dotoutput . -v -cp jsoup-1.7.2.jar D:\bin\org\smarttechies\harvester\ProductInfoHarvester.class
From the above example, jdeps generates class level dependency. DOT visualization is given below.
If you want to know more options get it from help jdeps -help
Siva Janapati is an Architect with experience in building Cloud Native Microservices architectures, Reactive Systems, Large scale distributed systems, and Serverless Systems. Siva has hands-on in architecture, design, and implementation of scalable systems using Cloud, Java, Go lang, Apache Kafka, Apache Solr, Spring, Spring Boot, Lightbend reactive tech stack, APIGEE edge & on-premise and other open-source, proprietary technologies. Expertise working with and building RESTful, GraphQL APIs. He has successfully delivered multiple applications in retail, telco, and financial services domains. He manages the GitHub(https://github.com/2013techsmarts) where he put the source code of his work related to his blog posts.
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