[SIS-140] IndexOutOfBoundsException in LineAppender

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.3
• Fix Version/s: 0.4
• Component/s: Utilities
• Assignee: Martin Desruisseaux
• Reporter: Martin Desruisseaux
• Created: 15/Oct/13 14:05
• Updated: 02/Dec/13 03:11
• Resolved: 15/Oct/13 14:32

Description

When a call to LineAppender.flush() is interleaved between two calls to LineAppender.append(String) and the String argument of the second line begins by a tabulation, an IndexOutOfBoundsException occurs. Example of sequence of method calls:

LineAppender f = ...;
f.append("S1");
f.flush();
f.append("\tS2");

This cause MonolineFormatter to fail to log some events. The symptom is the following stack trace:

java.lang.StringIndexOutOfBoundsException: String index out of range: 8
    at java.lang.AbstractStringBuilder.charAt(AbstractStringBuilder.java:203)
    at java.lang.StringBuilder.charAt(StringBuilder.java:72)
    at org.apache.sis.io.LineAppender.deleteSoftHyphen(LineAppender.java:333)
    at org.apache.sis.io.LineAppender.write(LineAppender.java:399)
    at org.apache.sis.io.LineAppender.append(LineAppender.java:526)
    at org.apache.sis.util.logging.MonolineFormatter.format(MonolineFormatter.java:669)
    at java.util.logging.StreamHandler.publish(StreamHandler.java:196)
    at java.util.logging.ConsoleHandler.publish(ConsoleHandler.java:105)
    at java.util.logging.Logger.log(Logger.java:610)
    (...snip....)