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Full Discussion: How to get CRC check sum of files in java EAR file without extracting .jar/.war files to disk.?
Top Forums Shell Programming and Scripting How to get CRC check sum of files in java EAR file without extracting .jar/.war files to disk.? Post 302968669 by kchinnam on Sunday 13th of March 2016 12:17:04 AM
Old 03-13-2016
How to get CRC check sum of files in java EAR file without extracting .jar/.war files to disk.?
unzip -v gives CRC info of each file in a zip(in my case .EAR) file.

Code:
# unzip -v my-application.ear
Archive:  my-application.ear
 Length   Method    Size  Cmpr    Date    Time   CRC-32   Name
--------  ------  ------- ---- ---------- ----- --------  ----
  197981  Defl:N   183708   7% 2016-03-10 19:01 90fbac01  file-core.jar
  210547  Defl:N   196091   7% 2016-03-10 19:01 b021ffd8  utilcommon.jar
.......

I am trying to compare two large EAR files, that contain around 200 .jar, .war files.

Is there a way to get CRC check sum values for files(like .class, .properties) without extracting underlying .jar/.war files from java EAR file?

Extracting hundreds of jar war files to disk to get CRC values is very slow and time consuming. Any other ideas to make it fast?
 

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LEARN ABOUT DEBIAN

mh_linkrepojar

MAVEN(1)							   User Commands							  MAVEN(1)

NAME

       Maven - Creates a link from a jar already installed in /usr/share/maven-repo.

SYNOPSIS

       mh_linkrepojar [option]... [pom] [link]...

DESCRIPTION

       Create symlinks from the jar in the Maven repository to any location, usually to a file located in /usr/share/java.

       Where

	      [pom] is the location of the POM associated with the jar to install.

	      GroupId, artifactId and version will be extracted from this file.

	      [link] is a link to the jar to install, usually there should

	      be  a  link  to usr/share/java/$jar.jar and usr/share/java/$jar-$version.jar to comply with the Java packaging guidelines. Note that
	      there is no need to specify those particular links if the --java-lib option is used.

OPTIONS

       -h --help: show this text

       -V --version: show the version

       -p<package> --package=<package>: package to act on

       -r<rules> --rules=<rules>: gives the location of the rules file for

	      special properties. Optional, the default location is debian/maven.rules

       -c<classifier> --classifier=<classifier>: Optional, the classifier for

	      the jar in the Maven repository. Empty by default.

       -v --verbose: show more information while running

       -n --no-act: don't actually do anything, just print the results

Maven Repo Helper version 1.7.1 				   January 2012 							  MAVEN(1)
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