UriTemplate COMPOSITE_PREFIXES init problem

[GoogleCodeExporter]

Version of google-http-java-client: 1.9.0-beta
Java environment: Java 6

There is a dangerous initialization problem in the class 
com.google.api.client.http.UriTemplate.  The COMPOSITE_PREFIXES map is not 
filled after classloading but only when the enum CompositeOutput is used. This 
means the first time getCompositeOutput is called, the map is still empty and 
only on line 190 the map is filled.

Testcase: 

Map<String, Object> map = new HashMap<String, Object>();
map.put("id", Arrays.asList("a", "b", "c").iterator());

System.out.println("first:" + UriTemplate.expand("{/id*}", map, false));
System.out.println("second:" + UriTemplate.expand("{/id*}", map, false));

Output:
first:
second:/a/b/c

How would you expect it to be fixed?
Initialize map in a static {} block
The result of calling UriTemplate.expand twice should be the same 

Original issue reported on code.google.com by willem.s...@gmail.com on 19 May 2012 at 4:57

[GoogleCodeExporter]

Thank you for reporting this issue!

Original comment by rmis...@google.com on 21 May 2012 at 11:17

• Added labels: Priority-High, Milestone-Version1.10.0
• Removed labels: Priority-Medium

[GoogleCodeExporter]

http://codereview.appspot.com/6208085/

Original comment by rmis...@google.com on 21 May 2012 at 2:25

• Changed state: Started

[GoogleCodeExporter]

Original comment by rmis...@google.com on 21 May 2012 at 4:29

• Added labels: Component-HTTP

[GoogleCodeExporter]

Original comment by rmis...@google.com on 22 May 2012 at 8:30

• Changed state: Fixed