[groovy-user] Passing '; ' as char to Java CSV parser throws 'no signature applicable' exception

[G...@gmx.net]

Hello,

I want to parse a CSV file using the Apache commons CSV parser[1] but groovy throws an exception when passing the delimiter ';' as char, because groovy passes a java.lang.Character and the method expects a primitive char.

Given this small test case...

---
import org.apache.commons.csv.CSVFormat;
import org.apache.commons.csv.CSVParser;

def csv = """\
col1;col2
earth;10
mars;200
"""
def format = CSVFormat.DEFAULT.withDelimiter(';' as char)
.withQuoteChar(null)
.withSurroundingSpacesIgnored()
.withHeader()
def parser = new CSVParser(csv, format)
println(parser.getRecords())
---

...with the apache commons csv parser jar file[2] placed in $HOME/.groovy/lib, groovy will produce this error:

---
Caught: groovy.lang.MissingMethodException: No signature of method: org.apache.commons.csv.CSVFormat.withDelimiter() is applicable for argument types: (java.lang.Character) values: [;]
Possible solutions: getDelimiter()
groovy.lang.MissingMethodException: No signature of method: org.apache.commons.csv.CSVFormat.withDelimiter() is applicable for argument types: (java.lang.Character) values: [;]
Possible solutions: getDelimiter()
at test.run(test.groovy:9)
---

I have no idea why this is happening. The .withDelimiter() function exists[3] and takes a char. I went through heaps of information on Google and in the docs but I can't find a reason for why groovy wont pass a char. Afaik, groovy doesn't have a primitive char but supplying something "as char" to a java lib that expects a char should work, right? How else would I be able to use a java library method that expects a char?

Some more information:
* Groovy Version: 2.0.5 JVM: 1.6.0_24 Vendor: Sun Microsystems Inc. OS: Linux
* openjdk6 Version: 6.b24_1.11.5-1 (I also tried Oracle jdk 7.9 with the same outcome)
* Maybe this bug [4] plays a role?

Any help would be greatly appreciated. Thanks!

Regards,
Tim Berger


[1] http://commons.apache.org/csv/
[2] https://repository.apache.org/content/groups/snapshots/org/apache/commons/commons-csv/1.0-SNAPSHOT/commons-csv-1.0-20121115.232114-147.jar
[3] http://commons.apache.org/csv/apidocs/src-html/org/apache/commons/csv/CSVFormat.html#line.181
[4] http://jira.codehaus.org/browse/GROOVY-5189


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[Hu, Yiguang]

Why don't you just use String split?

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