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Bugzilla >53974 - Avoid exception when constructing HSSFWorbook on Google App Engine

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git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1396543 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Yegor Kozlov 2012-10-10 11:09:48 +00:00
parent eb40f810d5
commit 299ca1472b
2 changed files with 8 additions and 2 deletions
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1
src/documentation/content/xdocs/status.xml
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@ -34,6 +34,7 @@
<changes>
<release version="3.9-beta1" date="2012-??-??">
<action dev="poi-developers" type="fix">53974 - Avoid NPE when constructing HSSFWorbook on Google App Engine</action>
<action dev="poi-developers" type="fix">53568 - Fixed null returned by XSSFPicture.getPictureData()</action>
<action dev="poi-developers" type="fix">53950 - fixed setForceFormulaRecalculation to reset workbook-level "manual" flag</action>
<action dev="poi-developers" type="fix">52211 - avoid unnessary re-coverting content types to US-ASCII, it can cause exceptions on ibm mainframes</action>

9
src/java/org/apache/poi/hssf/model/InternalWorkbook.java
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@ -1094,12 +1094,17 @@ public final class InternalWorkbook {
private static WriteAccessRecord createWriteAccess() {
WriteAccessRecord retval = new WriteAccessRecord();
String defaultUserName = "POI";
try {
retval.setUsername(System.getProperty("user.name"));
String username = System.getProperty("user.name");
// Google App engine returns null for user.name, see Bug 53974
if(username == null) username = defaultUserName;
retval.setUsername(username);
} catch (AccessControlException e) {
// AccessControlException can occur in a restricted context
// (client applet/jws application or restricted security server)
retval.setUsername("POI");
retval.setUsername(defaultUserName);
}
return retval;
}