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"Invalid or corrupt jarfile rhq-enterprise-agent-3.0.1.GA.jar" when installing or updating JON Agent using JRE/JDK 1.5

Solution Unverified - Updated 2011-04-05T21:39:01+00:00 -

Issue

JON Agent install error

Trying to run the install JAR file gives an error

Invalid or corrupt jarfile rhq-enterprise-agent-3.0.1.GA.jar

Unable to install JON Agent due to "Invalid or corrupt jarfile"
JON Agent auto-update does not seem to complete

Environment

JBoss Operation Network (JON) 2.4.1
Java 1.5
Installing or updating JON Agent
- Manually executing: java -jar rhq-enterprise-agent-3.0.1.GA.jar
- Agent Auto-Update

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