[LANG-429] NullPointerException (NPE) in FastDateFormat.getInstance(FastDateFormat.java:211)

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 2.2

Environment

MS Windows XP (SP 2), Java 1.5.0 Update 11

• Assignee: Unassigned
• Reporter: Kai Burjack
• Created: 24/Apr/08 13:04
• Updated: 17/May/08 05:24
• Resolved: 17/May/08 05:24

Description

Sometimes (sadly this is not reproducible) the following method call results in a NullPointerException (NPE):

Stacktrace:

java.lang.NullPointerException
at org.apache.commons.lang.time.FastDateFormat.getInstance(FastDateFormat.java:211)
at org.apache.commons.lang.time.DateFormatUtils.format(DateFormatUtils.java:258)
at org.apache.commons.lang.time.DateFormatUtils.format(DateFormatUtils.java:232)

I don't know how this is actually possible, since the exception is being raised when accessing a static field 'cInstanceCache' that will be implicitly initialized...

Could this have something to do with class gc?

Issue Links

• duplicates: LANG-367 FastDateFormat thread safety