[GROOVY-11262] Avoid processing duplicated entries within META-INF

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0.18, 5.0.0-alpha-5
• Assignee: Daniel Sun
• Reporter: Daniel Sun
• Created: 30/Dec/23 14:38
• Updated: 05/Mar/24 01:53
• Resolved: 30/Dec/23 15:10

Description

Though only one entry is found within META-INF, e.g. META-INF/groovy/org.codehaus.groovy.source.Extensions, two entries are retrieved via getResources method.

def loader = this.class.classLoader
def r = loader.getResources("META-INF/groovy/org.codehaus.groovy.source.Extensions").toList()
println r

Output:

[jar:file:/D:/_DEV/Groovy/groovy-4.0.14/lib/groovy-4.0.14.jar!/META-INF/groovy/org.codehaus.groovy.source.Extensions, jar:file:/D:/_DEV/Groovy/groovy-4.0.14/lib/groovy-4.0.14.jar!/META-INF/groovy/org.codehaus.groovy.source.Extensions]

As a result, Groovy processes them repeatedly, which is meaningless and should be avoided.