On 10/02/2015 19:54, Christopher Schultz wrote:
> Mark,
> 
> On 2/10/15 10:53 AM, ma...@apache.org wrote:
>> Author: markt
>> Date: Tue Feb 10 15:53:06 2015
>> New Revision: 1658737
>>
>> URL: http://svn.apache.org/r1658737
>> Log:
>> Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=57546
>> Ensure that a dropped connection does not leave references to the 
>> UpgradeProcessor
>>
>> Modified:
>>     tomcat/tc8.0.x/trunk/   (props changed)
>>     
>> tomcat/tc8.0.x/trunk/java/org/apache/coyote/http11/upgrade/AbstractProcessor.java
>>     
>> tomcat/tc8.0.x/trunk/java/org/apache/coyote/http11/upgrade/LocalStrings.properties
>>     tomcat/tc8.0.x/trunk/webapps/docs/changelog.xml
>>
>> Propchange: tomcat/tc8.0.x/trunk/
>> ------------------------------------------------------------------------------
>> --- svn:mergeinfo (original)
>> +++ svn:mergeinfo Tue Feb 10 15:53:06 2015
>> @@ -1 +1 @@
>> -/tomcat/trunk:1636524,1637156,1637176,1637188,1637331,1637684,1637695,1638720-1638725,1639653,1640010,1640083-1640084,1640088,1640275,1640322,1640347,1640361,1640365,1640403,1640410,1640652,1640655-1640658,1640688,1640700-1640883,1640903,1640976,1640978,1641000,1641026,1641038-1641039,1641051-1641052,1641058,1641064,1641300,1641369,1641374,1641380,1641486,1641634,1641656-1641692,1641704,1641707-1641718,1641720-1641722,1641735,1641981,1642233,1642280,1642554,1642564,1642595,1642606,1642668,1642679,1642697,1642699,1642766,1643002,1643045,1643054-1643055,1643066,1643121,1643128,1643206,1643209-1643210,1643216,1643249,1643270,1643283,1643309-1643310,1643323,1643365-1643366,1643370-1643371,1643465,1643474,1643536,1643570,1643634,1643649,1643651,1643654,1643675,1643731,1643733-1643734,1643761,1643766,1643814,1643937,1643963,1644017,1644169,1644201-1644203,1644321,1644323,1644516,1644523,1644529,1644535,1644730,1644768,1644784-1644785,1644790,1644793,1644815,1644884,1644886,1644890,164
489
> 2
>>  
>> ,1644910,1644924,1644929-1644930,1644935,1644989,1645011,1645247,1645355,1645357-1645358,1645455,1645465,1645469,1645471,1645473,1645475,1645486-1645488,1645626,1645641,1645685,1645743,1645763,1645951-1645953,1645955,1645993,1646098-1646106,1646178,1646220,1646302,1646304,1646420,1646470-1646471,1646476,1646559,1646717-1646723,1646773,1647026,1647042,1647530,1647655,1648304,1648815,1648907,1650081,1650365,1651116,1651120,1651280,1651470,1652938,1652970,1653041,1653471,1653550,1653574,1653797,1653815-1653816,1653819,1653840,1653857,1653888,1653972,1654013,1654030,1654050,1654123,1654148,1654159,1654513,1654515,1654517,1654522,1654524,1654725,1654735,1654766,1654785,1654851-1654852,1654978,1655122-1655124,1655126-1655127,1655129-1655130,1655132-1655133,1655312,1655438,1655441,1655454,1655558,1656087,1656299,1656319,1656331,1656345,1656350,1656590,1656648-1656650,1656657,1657041,1657054,1657374,1657492,1657510,1657565,1657580,1657584,1657586,1657589,1657592,1657607,1657609,1657682,
165
> 7
>>  907,1658207
>> +/tomcat/trunk:1636524,1637156,1637176,1637188,1637331,1637684,1637695,1638720-1638725,1639653,1640010,1640083-1640084,1640088,1640275,1640322,1640347,1640361,1640365,1640403,1640410,1640652,1640655-1640658,1640688,1640700-1640883,1640903,1640976,1640978,1641000,1641026,1641038-1641039,1641051-1641052,1641058,1641064,1641300,1641369,1641374,1641380,1641486,1641634,1641656-1641692,1641704,1641707-1641718,1641720-1641722,1641735,1641981,1642233,1642280,1642554,1642564,1642595,1642606,1642668,1642679,1642697,1642699,1642766,1643002,1643045,1643054-1643055,1643066,1643121,1643128,1643206,1643209-1643210,1643216,1643249,1643270,1643283,1643309-1643310,1643323,1643365-1643366,1643370-1643371,1643465,1643474,1643536,1643570,1643634,1643649,1643651,1643654,1643675,1643731,1643733-1643734,1643761,1643766,1643814,1643937,1643963,1644017,1644169,1644201-1644203,1644321,1644323,1644516,1644523,1644529,1644535,1644730,1644768,1644784-1644785,1644790,1644793,1644815,1644884,1644886,1644890,164
489
> 2
>>  
>> ,1644910,1644924,1644929-1644930,1644935,1644989,1645011,1645247,1645355,1645357-1645358,1645455,1645465,1645469,1645471,1645473,1645475,1645486-1645488,1645626,1645641,1645685,1645743,1645763,1645951-1645953,1645955,1645993,1646098-1646106,1646178,1646220,1646302,1646304,1646420,1646470-1646471,1646476,1646559,1646717-1646723,1646773,1647026,1647042,1647530,1647655,1648304,1648815,1648907,1650081,1650365,1651116,1651120,1651280,1651470,1652938,1652970,1653041,1653471,1653550,1653574,1653797,1653815-1653816,1653819,1653840,1653857,1653888,1653972,1654013,1654030,1654050,1654123,1654148,1654159,1654513,1654515,1654517,1654522,1654524,1654725,1654735,1654766,1654785,1654851-1654852,1654978,1655122-1655124,1655126-1655127,1655129-1655130,1655132-1655133,1655312,1655438,1655441,1655454,1655558,1656087,1656299,1656319,1656331,1656345,1656350,1656590,1656648-1656650,1656657,1657041,1657054,1657374,1657492,1657510,1657565,1657580,1657584,1657586,1657589,1657592,1657607,1657609,1657682,
165
> 7
>>  907,1658207,1658734
>>
>> Modified: 
>> tomcat/tc8.0.x/trunk/java/org/apache/coyote/http11/upgrade/AbstractProcessor.java
>> URL: 
>> http://svn.apache.org/viewvc/tomcat/tc8.0.x/trunk/java/org/apache/coyote/http11/upgrade/AbstractProcessor.java?rev=1658737&r1=1658736&r2=1658737&view=diff
>> ==============================================================================
>> --- 
>> tomcat/tc8.0.x/trunk/java/org/apache/coyote/http11/upgrade/AbstractProcessor.java
>>  (original)
>> +++ 
>> tomcat/tc8.0.x/trunk/java/org/apache/coyote/http11/upgrade/AbstractProcessor.java
>>  Tue Feb 10 15:53:06 2015
>> @@ -93,9 +93,23 @@ public abstract class AbstractProcessor<
>>              throws IOException {
>>  
>>          if (status == SocketStatus.OPEN_READ) {
>> -            upgradeServletInputStream.onDataAvailable();
>> +            try {
>> +                upgradeServletInputStream.onDataAvailable();
>> +            } catch (IOException ioe) {
>> +                // The error handling within the ServletInputStream should 
>> have
>> +                // marked the stream for closure which will get picked up 
>> below,
>> +                // triggering the clean-up of this processor.
>> +                
>> getLog().debug(sm.getString("abstractProcessor.onDataAvailableFail"), ioe);
> 
> Is this a fairly likely code path? Is it worth predicating the log call
> with if(getLog().isDebugEnabled)?

I've already removed that code as part of my re-work of this to make it
much more robust as per Remy's review.

Mark


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