[GROOVY-1043] java.util.regex.Matcher: group access by [] operator broken in jsr-03

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 1.0-JSR-3
• Fix Version/s: 1.0-JSR-4
• Environment: Debian 3.1
• Assignee: Unassigned
• Reporter: Thipor Kong
• Created: 04/Sep/05 11:40
• Updated: 06/Sep/05 05:28
• Resolved: 06/Sep/05 05:28

Description

This code works with jsr-02 but not anymore with jsr-03:

def m = ("Hallo_1_3" =~ "^(.*)(\\d+)(
d+)")
if (m) {
println "m.pattern().pattern() = ${m.pattern().pattern()}"
println "m.matches() = ${m.matches()}"
println "m.groupCount() = ${m.groupCount()}"
println "m.group(1) = ${m.group(1)}"
println "m.group(2) = ${m.group(2)}"
println "m.group(3) = ${m.group(3)}"
println "m[1] = ${m[1]}"
println "m[2] = ${m[2]}"
println "m[3] = ${m[3]}"
}

The output with jsr-03 is:

m.pattern().pattern() = ^(.*)(\d+)(\d+)
m.matches() = true
m.groupCount() = 3
m.group(1) = Hallo
m.group(2) = 1
m.group(3) = 3
Exception in thread "main" java.lang.IndexOutOfBoundsException: index is out of range -1..0 (index = 1)
at org.codehaus.groovy.runtime.DefaultGroovyMethods.getAt(DefaultGroovyMethods.java:1434)
at gjdk.java.util.regex.Matcher_GroovyReflector.invoke(Unknown Source)
at groovy.lang.MetaMethod.invoke(MetaMethod.java:110)
at org.codehaus.groovy.runtime.NewInstanceMetaMethod.invoke(NewInstanceMetaMethod.java:99)
at groovy.lang.MetaClass.doMethodInvoke(MetaClass.java:1455)
at groovy.lang.MetaClass.invokeMethod(MetaClass.java:318)
at org.codehaus.groovy.runtime.Invoker.invokeMethod(Invoker.java:145)
at org.codehaus.groovy.runtime.InvokerHelper.invokeMethod(InvokerHelper.java:104)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethod(ScriptBytecodeAdapter.java:85)
at matcher.run(Unknown Source)
at gjdk.matcher_GroovyReflector.invoke(Unknown Source)
at groovy.lang.MetaMethod.invoke(MetaMethod.java:110)
at groovy.lang.MetaClass.doMethodInvoke(MetaClass.java:1455)
at groovy.lang.MetaClass.invokeMethod(MetaClass.java:318)
at org.codehaus.groovy.runtime.Invoker.invokeMethod(Invoker.java:165)
at org.codehaus.groovy.runtime.InvokerHelper.invokeMethod(InvokerHelper.java:104)
at org.codehaus.groovy.runtime.InvokerHelper.runScript(InvokerHelper.java:504)
at gjdk.org.codehaus.groovy.runtime.InvokerHelper_GroovyReflector.invoke(Unknown Source)
at groovy.lang.MetaMethod.invoke(MetaMethod.java:110)
at groovy.lang.MetaClass.doMethodInvoke(MetaClass.java:1455)
at groovy.lang.MetaClass.invokeStaticMethod(MetaClass.java:464)
at org.codehaus.groovy.runtime.Invoker.invokeMethod(Invoker.java:137)
at org.codehaus.groovy.runtime.InvokerHelper.invokeMethod(InvokerHelper.java:104)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethod(ScriptBytecodeAdapter.java:85)
at matcher.main(Unknown Source)