[CONF] Apache Tomcat > OutOfMemory

[Felix Schumacher (Confluence)]

Title: Message Title



 
 
 
There's 1 new edit on this page 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
OutOfMemory 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
Felix Schumacher edited this page 
 
 
  
 
 

 
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
Here's the version comment 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
Felix Schumacher edited at 10:50 AM 
 
 
  
 
 

 
 
 
 
 
 
 
 
 Note about MetaSpae instead of PermGen  
 
 
  
 
 
  
 
 

 
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Here's what changed: 
 
 
 
 
 
 
 
 
 
 
 ... 
 
A servlet trying to load a several GBytes file into memory will surely kill the server. These kind of errors must be considered a simple bug in our program. 
To compensate for the data your servlet tries to load, you increase the heap size so that there is no room to create the stack size for the threads that need to be created. The memory required by each thread will vary by OS but can be as high as 2M by default and in some OS's (like Debian Sarge) is not reducible with the -Xss parameter. Rule of Thumb, use no more than 1G for heap space in a 32-bit web application. 
Deep recursive algorithms can also lead to Out Of Memory problems. In this case, the only fixes are increasing the thread stack size (-Xss), or refactoring the algorithms to reduce the depth, or the local data size per call. 
  A webapp that uses lots of libraries with many dependencies, or a server maintaining lots of webapps could exhauste the JVM PermGen space. This space is where the VM stores the classes and methods data. In those cases, the fix is to increase this size. The Sun VM has the flag -XX:MaxPermSize that allows to set its size (the default value is 64M)  
 
 
 
 Info 
 
 
 
 
  PermGen has been integrated into a new concept called MetaSpace from Java 8 on. The old setting will generate a warning and will be ignored by newer JVMs.   
 
 
 
Hard references to classes can prevent the garbage collector from reclaiming the memory allocated for them when a ClassLoader is discarded. This will occur on JSP recompilations, and webapps reloads. If these operations are common in a webapp having these kinds of problems, it will be a matter of time, until the PermGen space gets full and an Out Of Memory is thrown. 
 ... Any threads a web application starts, a web application should stop. ServletContextListener is your friend. Note Tomcat 7 will warn you if you do this and will also provide a (highly dangerous - use at your own risk) option to terminate the threads.  DriverManager  If you load a java.sql.Driver in your own classloader (or servlets), the driver should be removed before undeploying. Each driver is registered in DriverManager which is loaded in system classloader and references the local driver. Note Tomcat will do this for you if you forget. 
 
 
 
 No Format 
 
 
 
 
 
Enumeration drivers = DriverManager.getDrivers();
		ArrayList driversToUnload=new ArrayList();
		while (drivers.hasMoreElements()) {
			Driver driver = drivers.nextElement();
			if (driver.getClass().getClassLoader().equals(getClass().getClassLoader())) {
driversToUnload.add(driver);
			}
		}
		for (Driver driver : driversToUnload) {
	DriverManager.deregisterDriver(driver);
}
  
 
 
  ThreadLocal  The lifecycle of a ThreadLocal should match that of a request. There is no guarantee that a thread will ever be used to process a request again so if a ThreadLocal is left on the thread at the end of the request there may be no opportunity for the web application to clean it up. Note Tomcat 7 will do this for you.  ContextClassLoader  There are various parts of the Java API that retain a permanent reference to the context class loader. If this happens to be a web application class loader then a memory leak will occur. Tomcat provides workarounds for these where known but there are undoubtedly others. ...  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Go to page history 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
View page 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
Stop watching space
• 
 
 
 
 
 
 
Manage notifications 
 
 
 
 
 
 
 
 
 
 
  
 
 
This message was sent by Atlassian Confluence 6.15.2  
 
 
  
 
 
 
 
 
 
 
 
 

[CONF] Apache Tomcat > OutOfMemory

[Felix Schumacher (Confluence)]

Title: Message Title



 
 
 
There's 1 new edit on this page 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
OutOfMemory 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
Felix Schumacher edited this page 
 
 
  
 
 

 
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
Here's the version comment 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
Felix Schumacher edited at 10:41 AM 
 
 
  
 
 

 
 
 
 
 
 
 
 
 Enable code macro to pretty print xml  
 
 
  
 
 
  
 
 

 
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Here's what changed: 
 
 
 
 
 
 
 
 
 
 
 ... 
 
A servlet trying to load a several GBytes file into memory will surely kill the server. These kind of errors must be considered a simple bug in our program. 
To compensate for the data your servlet tries to load, you increase the heap size so that there is no room to create the stack size for the threads that need to be created. The memory required by each thread will vary by OS but can be as high as 2M by default and in some OS's (like Debian Sarge) is not reducible with the -Xss parameter. Rule of Thumb, use no more than 1G for heap space in a 32-bit web application. 
Deep recursive algorithms can also lead to Out Of Memory problems. In this case, the only fixes are increasing the thread stack size (-Xss), or refactoring the algorithms to reduce the depth, or the local data size per call. 
A webapp that uses lots of libraries with many dependencies, or a server maintaining lots of webapps could exhauste the JVM PermGen space. This space is where the VM stores the classes and methods data. In those cases, the fix is to increase this size. The Sun VM has the flag -XX:MaxPermSize that allows to set its size (the default value is 64M) 
Hard references to classes can prevent the garbage collector from reclaiming the memory allocated for them when a ClassLoader is discarded. This will occur on JSP recompilations, and webapps reloads. If these operations are common in a webapp having these kinds of problems, it will be a matter of time, until the PermGen space gets full and an Out Of Memory is thrown. 
 ... Any threads a web application starts, a web application should stop. ServletContextListener is your friend. Note Tomcat 7 will warn you if you do this and will also provide a (highly dangerous - use at your own risk) option to terminate the threads.  DriverManager  If you load a java.sql.Driver in your own classloader (or servlets), the driver should be removed before undeploying. Each driver is registered in DriverManager which is loaded in system classloader and references the local driver. Note Tomcat will do this for you if you forget. 
 
 
 
 No Format 
 
 
 
 
 
Enumeration drivers = DriverManager.getDrivers();
		ArrayList driversToUnload=new ArrayList();
		while (drivers.hasMoreElements()) {
			Driver driver = drivers.nextElement();
			if (driver.getClass().getClassLoader().equals(getClass().getClassLoader())) {
driversToUnload.add(driver);
			}
		}
		for (Driver driver : driversToUnload) {
	DriverManager.deregisterDriver(driver);
}
  
 
 
  ThreadLocal  The lifecycle of a ThreadLocal should match that of a request. There is no guarantee that a thread will ever be used to process a request again so if a ThreadLocal is left on the thread at the end of the request there may be no opportunity for the web application to clean it up. Note Tomcat 7 will do this for you.  ContextClassLoader  There are various parts of the Java API that retain a permanent reference to the context class loader. If this happens to be a web application class loader then a memory leak will occur. Tomcat provides workarounds for these where known but there are undoubtedly others. ... Please remember that a JSP page, even one that simply prints out “OK”, will create a session. This is by design and if you do not want it to create a session you need to explicitly indicate that in your JSP. For example:   
 
 
 
 No Format 
 
 
 
 
 Code Block 
 
 
 
 
 
 
 
 
language 
php 
 
 
  
 
 
 
 
 <%@ page session="false" %>

  
 
 
 This is important in scenarios where you are doing load testing and using custom HTTP clients, because these clients may not be handling sessions correctly and thus end up creating a new session every time they access the page. ... It is also possible to limit the number of active sessions by setting maxActiveSessions attribute on a Manager element, e.g.   
 
 
 
 No Format 
 
 
 
 
 Code Block 
 
 
 
 
 
 
 
 
language 
xml 
 
 
  
 
 
 
 
 
  


  
 
 
 
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Go to page history 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
View page 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
Stop watching space
• 
 
 
 
 
 
 
Manage notifications 
 
 
 
 
 
 
 
 
 
 
  
 
 
This message was sent by Atlassian Confluence 6.15.2  
 
 
  
 
 
 
 
 
 
 
 
 

Re: [CONF] Apache Tomcat > Troubleshooting and Diagnostics

[Felix Schumacher]

Am 05.06.19 um 22:13 schrieb Eugène Adell:
> Hello,
>
> if I may suggest something, over the years I have found very useful
> jstat and GCViewer for detecting GC suspicious behaviors. Both are of
> course free, the first one giving information on a live JVM, and the
> second being more interesting for an offline analysis (though it can
> be updated automatically). With that you can see an OOM coming, and
> you also can have some clues for the heap settings if you want to tune
> them. You also have a visual proof when you perform a major upgrade
> and want to see if it had an impact on memory, by comparing 2 or 3
> pictures before with 2 or 3 pictures after. They were not very often
> mentionned in the users list, maybe they are underrated ?

I like gc logs a lot, as they give me a quick picture of the used
memory. I have configured all my tomcat instances to log there gc's. And
my first go to when an instance feels slow is to use jstack and look at
the fgc count.

So feel free to add a paragraph about using gc logs and corresponding
tools to the wiki.

Felix

>
> best regards
> E.A.
>
> Le mar. 4 juin 2019 à 21:00, Felix Schumacher (Confluence)
> mailto:no-re...@apache.org>> a écrit :
>
> There's *1 new edit* on this page
>  
> page icon
> 
> 
>
>
>   Troubleshooting and Diagnostics
> 
> 
>
>
>   
> Felix Schumacher edited this page
>
>
>   
>
> Here's what changed:
>
> ...
>
>   * How To: Capture a thread dump
> 
> 
>
>   * How To: Capture a heap dump
> 
> 
>
>   * How To: Examine a Stacktrace
> 
> 
>
>   * How To: Configure Tomcat for debugging
> 
> 
>
>   * FAQ: Developing
> 
> 
>
>   * FAQ: Memory
> 
> 
>
>   * Tomcat Memory Leak Protection
> 
> 
>
>   * Sun Technical Article: Monitoring and Managing Java SE 6
> Platform Applications
> 
>
>   * Notes on using JMX clients
> 
> 
>
>
> ...
>
>   * jinfo - Prints JVM process info
> 
> 
>
>   * jstack - Prints thread stack traces
> 
> 
>
>   * jmap - Dumps heap and shows heap status
> 
> 
>
>   * jhat - Heap Analyzer Tool
> 
> 
>
>   * jcmd - Multitool intended to replace the above JDK tools
> 
> 
>
>
>
>   Profilers & Heap Analyzers
>
>   * Eclipse Memory Analyzer (MAT) 
>   * YourKit Profiler 
>  *
>
> VisualVM Docs
> 
> 
>  
>
>
> Anchor
>
>   usingjmxclients
>
>   usingjmxclients
>
> ...
>
>  1. Look into Tomcat access log
> 
> 
> (the log file generated by AccessLogValve
> 
> ).
>
>   * If your request is not listed there, then it has not been
> processed by Tomcat. You need to look elsewhere (e.g. at
> your firewall).
>   * You will see what IP address your client is using, and
> whether it is using an IPv4 (|127.0.0.1|) or IPv6 address
> (|0:0:0:0:0:0:0:1|). Modern operating systems can use IPv6
> addresses for 

[CONF] Apache Tomcat > Troubleshooting and Diagnostics

[Felix Schumacher (Confluence)]

Title: Message Title



 
 
 
There's 2 new edits on this page 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Troubleshooting and Diagnostics 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
Felix Schumacher edited this page 
 
 
  
 
 

 
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
Here's the version comments 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
Felix Schumacher edited at 10:25 AM 
 
 
  
 
 

 
 
 
 
 
 
 
 
 Correct Typo  
 
 
  
 
 
  
 
 

 
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
Felix Schumacher edited at 10:24 AM 
 
 
  
 
 

 
 
 
 
 
 
 
 
 Updated Links to FAQs for Memory and Developing  
 
 
  
 
 
  
 
 

 
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Here's what changed: 
 
 
 
 
 
 
 
 
 
 
 ... 
 
 How To: Capture a thread dump  
 How To: Capture a heap dump  
 How To: Examine a Stacktrace  
 How To: Configure Tomcat for debugging  
 FAQ: Developing  
 FAQ: Memory  
 Tomcat Memory Leak Protection  
 Sun Technical Article: Monitoring and Managing Java SE 6 Platform Applications  
 Notes on using JMX clients  
 ... 
 
Look into Tomcat access log (the log file generated by AccessLogValve).  
 
If your request is not listed there, then it has not been processed by Tomcat. You need to look elsewhere (e.g. at your firewall). 
You will see what IP address your client is using, and whether it is using an IPv4 (127.0.0.1) or IPv6 address (0:0:0:0:0:0:0:1). Modern operating systems can use IPv6 addresses for localhost / local network access, while external network is still using IPv4. 2. Take a thread dump. This way you will find out what Tomcat is actually doing. 
If you are troubleshooting some process that takes noticeable time, take several (three) thread dumps with some interval between them. This way you will see if there are any changes, any progress. 3. Try debugging. 
A good place for a breakpoint is org.apache.catalina.connector.CoyoteAdapter.service() method. That is the entry point from Tomcat connectors and into the Servlet engine. At that place your request has already been received and its processing starts. 
  
 ... You can also search the archives of the Tomcat users' mailing lists for previous discussions mentioning the RECYCLE_FACADES flag. 2. Read about Java ImageIO issue. Accessing response objects after their lifetime can lead to security issues in your application, such as sending responses to wrong clients, mixing up responses. If you can reproduce the issue and the above diagnostic does not show your own bug, but a bug in Apache Tomcat, ...  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Go to page history 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
View page 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
Stop watching space
• 
 
 
 
 
 
 
Manage notifications 
 
 
 
 
 
 
 
 
 
 
  
 
 
This message was sent by Atlassian Confluence 6.15.2  
 
 
  
 
 
 
 
 
 
 
 
 

[CONF] Apache Tomcat > Developing

[Felix Schumacher (Confluence)]

Title: Message Title



 
 
 
There's 1 new edit on this page 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Developing 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
Felix Schumacher edited this page 
 
 
  
 
 

 
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
Here's the version comment 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
Felix Schumacher edited at 10:28 AM 
 
 
  
 
 

 
 
 
 
 
 
 
 
 Use git instead of svn  
 
 
  
 
 
  
 
 

 
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Here's what changed: 
 
 
 
 
 
 
 
 
 
 
 ... How do I start hacking Tomcat in Eclipse? Briefly: 
 
 
 
 No Format 
 
 
 
 
 
$ svngit checkoutclone httphttps://svngithub.com/apache.org/repos/asf/tomcat/trunktomcat.git
  (or whatever branch you want: clearly, this would be better
  to do directly from within Eclipse but it's easier to describe
  as a command)

$ cd trunktomcat

$ echo "base.path=/path/to/where/tomcat/can/put/its/3rd-party/libs" > build.properties

$ ant ide-eclipse
  
 
 
 ... How do I remotely debug Tomcat using NetBeans? This answer assumes that you know how to work with a NetBeans Project, and also how to use the NetBeans debugger. If not, please go to http://www.netbeans.org/kb/using-netbeans/40/debug.html and read up on how to use NetBeans and its debugger. ...  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Go to page history 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
View page 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
Stop watching space
• 
 
 
 
 
 
 
Manage notifications 
 
 
 
 
 
 
 
 
 
 
  
 
 
This message was sent by Atlassian Confluence 6.15.2  
 
 
  
 
 
 
 
 
 
 
 
 

Bug report for Tomcat Modules [2019/06/09]

[bugzilla]

+---+
| Bugzilla Bug ID   |
| +-+
| | Status: UNC=Unconfirmed NEW=New ASS=Assigned|
| | OPN=ReopenedVER=Verified(Skipped Closed/Resolved)   |
| |   +-+
| |   | Severity: BLK=Blocker CRI=Critical  REG=Regression  MAJ=Major   |
| |   |   MIN=Minor   NOR=NormalENH=Enhancement TRV=Trivial |
| |   |   +-+
| |   |   | Date Posted |
| |   |   |  +--+
| |   |   |  | Description  |
| |   |   |  |  |
|50571|Inf|Nor|2011-01-11|Tomcat 7 JDBC connection pool exception enhancemen|
|51595|Inf|Nor|2011-08-01|org.apache.tomcat.jdbc.pool.jmx.ConnectionPool sho|
|51879|Inf|Enh|2011-09-22|Improve access to Native Connection Methods   |
|52024|Inf|Enh|2011-10-13|Custom interceptor to support automatic failover o|
|53199|Inf|Enh|2012-05-07|Refactor ConnectionPool to use ScheduledExecutorSe|
|54437|New|Enh|2013-01-16|Update PoolProperties javadoc for ConnectState int|
|54929|Inf|Nor|2013-05-05|jdbc-pool cannot be used with Java 1.5, "java.lang|
|55078|New|Nor|2013-06-07|Configuring a DataSource Resource with dataSourceJ|
|55662|New|Enh|2013-10-17|Add a way to set an instance of java.sql.Driver di|
|56046|New|Enh|2014-01-21|org.apache.tomcat.jdbc.pool.XADataSource InitSQL p|
|56088|New|Maj|2014-01-29|AbstractQueryReport$StatementProxy throws exceptio|
|56310|Inf|Maj|2014-03-25|PooledConnection and XAConnection not handled corr|
|56586|New|Nor|2014-06-02|initSQL should be committed if defaultAutoCommit =|
|56775|New|Nor|2014-07-28|PoolCleanerTime schedule issue|
|56779|New|Nor|2014-07-28|Allow multiple connection initialization statement|
|56790|New|Nor|2014-07-29|Resizing pool.maxActive to a higher value at runti|
|56798|New|Nor|2014-07-31|Idle eviction strategy could perform better (and i|
|56804|New|Nor|2014-08-02|Use a default validationQueryTimeout other than "f|
|56805|New|Nor|2014-08-02|datasource.getConnection() may be unnecessarily bl|
|56837|New|Nor|2014-08-11|if validationQuery have error with timeBetweenEvic|
|56970|New|Nor|2014-09-11|MaxActive vs. MaxTotal for commons-dbcp and tomcat|
|56974|New|Nor|2014-09-12|jdbc-pool validation query defaultAutoCommit statu|
|57460|New|Nor|2015-01-19|[DB2]Connection broken after few hours but not rem|
|57729|New|Enh|2015-03-20|Add QueryExecutionReportInterceptor to log query e|
|58489|Opn|Maj|2015-10-08|QueryStatsComparator throws IllegalArgumentExcepti|
|59077|New|Nor|2016-02-26|DataSourceFactory creates a neutered data source  |
|59569|New|Nor|2016-05-18|isWrapperFor/unwrap implementations incorrect |
|59879|New|Nor|2016-07-18|StatementCache interceptor returns ResultSet objec|
|60195|New|Nor|2016-10-02|No javadoc in Maven Central   |
|60522|New|Nor|2016-12-27|An option for setting if the transaction should be|
|60524|Inf|Nor|2016-12-28|NPE in SlowQueryReport in tomcat-jdbc-7.0.68  |
|60645|New|Nor|2017-01-25|StatementFinalizer is not thread-safe |
|61032|New|Nor|2017-04-24|min pool size is not being respected  |
|61103|New|Nor|2017-05-18|StatementCache potentially caching non-functional |
|61302|New|Enh|2017-07-15|Refactoring of DataSourceProxy|
|61303|New|Enh|2017-07-15|Refactoring of ConnectionPool |
|62432|New|Nor|2018-06-06|Memory Leak in Statement Finalizer?   |
|62598|New|Enh|2018-08-04|support pool with multiple JDBC data sources  |
|62910|Inf|Nor|2018-11-15|tomcat-jdbc global pool transaction problem   |
+-+---+---+--+--+
| Total   39 bugs   |
+---+

-
To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org
For additional commands, e-mail: dev-h...@tomcat.apache.org

Bug report for Tomcat 9 [2019/06/09]

[bugzilla]

+---+
| Bugzilla Bug ID   |
| +-+
| | Status: UNC=Unconfirmed NEW=New ASS=Assigned|
| | OPN=ReopenedVER=Verified(Skipped Closed/Resolved)   |
| |   +-+
| |   | Severity: BLK=Blocker CRI=Critical  REG=Regression  MAJ=Major   |
| |   |   MIN=Minor   NOR=NormalENH=Enhancement TRV=Trivial |
| |   |   +-+
| |   |   | Date Posted |
| |   |   |  +--+
| |   |   |  | Description  |
| |   |   |  |  |
|57505|New|Enh|2015-01-27|Add integration tests for JspC|
|57661|New|Enh|2015-03-04|Delay sending of 100 continue response until appli|
|58242|New|Enh|2015-08-13|Scanning jars in classpath to get annotations in p|
|58530|New|Enh|2015-10-23|Proposal for new Manager HTML GUI |
|58548|New|Enh|2015-10-26|support certifcate transparency   |
|58859|New|Enh|2016-01-14|Allow to limit charsets / encodings supported by T|
|59203|New|Enh|2016-03-21|Try to call Thread.interrupt before calling Thread|
|59344|Ver|Enh|2016-04-18|PEM file support for JSSE |
|59750|New|Enh|2016-06-24|Amend "authenticate" method with context by means |
|59901|New|Enh|2016-07-26|Reduce I/O associated with JSP compilation|
|60997|New|Enh|2017-04-17|Enhance SemaphoreValve to support denied status an|
|61971|New|Enh|2018-01-06|documentation for using tomcat with systemd   |
|62048|New|Enh|2018-01-25|Missing logout function in Manager and Host-Manage|
|62072|New|Enh|2018-02-01|Add support for request compression   |
|62140|New|Enh|2018-02-27|catalina.sh should document the verbs it accepts a|
|62312|New|Enh|2018-04-18|Add Proxy Authentication support to websocket clie|
|62405|New|Enh|2018-05-23|Add Rereadable Request Filter |
|62488|New|Enh|2018-06-25|Obtain dependencies from Maven Central where possi|
|62611|New|Enh|2018-08-09|Compress log files after rotation |
|62695|Inf|Nor|2018-09-07|Provide sha512 checksums for Tomcat releases publi|
|62696|New|Enh|2018-09-07|Consider use of sha256 for signing of .exe files o|
|62723|New|Enh|2018-09-14|Clarify "channelSendOptions" value in cluster docu|
|62773|New|Enh|2018-09-28|Change DeltaManager to handle session deserializat|
|62814|New|Enh|2018-10-10|Use readable names for cluster channel/map options|
|62843|New|Enh|2018-10-22|Tomcat Russian localization   |
|62920|New|Enh|2018-11-17|Maven Plugin For Tomcat 9.0.x |
|62964|New|Enh|2018-11-29|Add RFC7807 conformant Problem Details for HTTP st|
|63023|New|Enh|2018-12-20|Provide a way to load SecurityProviders into the s|
|63049|New|Enh|2018-12-31|Add support in system properties override from com|
|63191|Inf|Nor|2019-02-20|RemoteEndpoint.Async#sendText(String, SendHandler)|
|63237|New|Enh|2019-03-06|Consider processing mbeans-descriptors.xml at comp|
|63310|New|Nor|2019-04-02|Update Commons Daemon for improved Java 11 support|
|63362|New|Enh|2019-04-18|GlobalRequestProcessor statistics in MBean does no|
|63389|New|Enh|2019-04-27|Enable Servlet Warmup for Containerization|
+-+---+---+--+--+
| Total   34 bugs   |
+---+

-
To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org
For additional commands, e-mail: dev-h...@tomcat.apache.org

Bug report for Tomcat 8 [2019/06/09]

[bugzilla]

+---+
| Bugzilla Bug ID   |
| +-+
| | Status: UNC=Unconfirmed NEW=New ASS=Assigned|
| | OPN=ReopenedVER=Verified(Skipped Closed/Resolved)   |
| |   +-+
| |   | Severity: BLK=Blocker CRI=Critical  REG=Regression  MAJ=Major   |
| |   |   MIN=Minor   NOR=NormalENH=Enhancement TRV=Trivial |
| |   |   +-+
| |   |   | Date Posted |
| |   |   |  +--+
| |   |   |  | Description  |
| |   |   |  |  |
|55243|New|Enh|2013-07-11|Add special search string for nested roles|
|55252|New|Enh|2013-07-12|Separate Ant and command-line wrappers for JspC   |
|55383|New|Enh|2013-08-07|Improve markup and design of Tomcat's HTML pages  |
|9|New|Enh|2013-09-14|UserDatabaseRealm enhacement: may use local JNDI  |
|55675|New|Enh|2013-10-18|Checking and handling invalid configuration option|
|55788|New|Enh|2013-11-16|TagPlugins should key on tag QName rather than imp|
|55969|New|Enh|2014-01-07|Security-related enhancements to the Windows Insta|
|56166|New|Enh|2014-02-20|Suggestions for exception handling (avoid potentia|
|56361|New|Enh|2014-04-08|org.apache.tomcat.websocket.WsWebSocketContainer#b|
|56398|New|Enh|2014-04-11|Support Arquillian-based unit testing |
|56399|New|Enh|2014-04-11|Re-factor request/response recycling so Coyote and|
|56402|New|Enh|2014-04-11|Add support for HTTP Upgrade to AJP components|
|56448|New|Enh|2014-04-23|Implement a robust solution for client initiated S|
|56522|Opn|Enh|2014-05-14|jasper-el 8 does not comply to EL Spec 3.0 regardi|
|56546|New|Enh|2014-05-19|Improve thread trace logging in WebappClassLoader.|
|56713|New|Enh|2014-07-12|Limit time that incoming request waits while webap|
|56724|New|Enh|2014-07-15|Restart Container background thread if it died une|
|56890|Inf|Maj|2014-08-26|getRealPath returns null  |
|56966|New|Enh|2014-09-11|AccessLogValve's elapsed time has 15ms precision o|
|57130|New|Enh|2014-10-22|Allow digest.sh to accept password from a file or |
|57421|New|Enh|2015-01-07|Farming default directories   |
|57486|New|Enh|2015-01-23|Improve reuse of ProtectedFunctionMapper instances|
|57665|New|Enh|2015-03-05|support x-forwarded-host  |
|57701|New|Enh|2015-03-13|Implement "[Redeploy]" button for a web applicatio|
|57830|New|Enh|2015-04-18|Add support for ProxyProtocol |
|58052|Opn|Enh|2015-06-19|RewriteValve: Implement additional RewriteRule dir|
|58072|New|Enh|2015-06-23|ECDH curve selection  |
|58143|Opn|Enh|2015-07-15|The WebppClassLoader doesn't call transformers on |
|58577|New|Enh|2015-11-03|JMX Proxy Servlet can't handle overloaded methods |
|58837|New|Enh|2016-01-12|support "X-Content-Security-Policy" a.k.a as "CSP"|
|58935|Opn|Enh|2016-01-29|Re-deploy from war without deleting context   |
|59232|New|Enh|2016-03-24|Make the context name of an app available via JNDI|
|59423|New|Enh|2016-05-03|amend "No LoginModules configured for ..." with hi|
|59758|New|Enh|2016-06-27|Add http proxy username-password credentials suppo|
|60281|Ver|Nor|2016-10-20|Pathname of uploaded WAR file should not be contai|
|60721|Ver|Nor|2017-02-10|Unable to find key spec if more applications use b|
|60781|New|Nor|2017-02-27|Access Log Valve does not escape the same as mod_l|
|60849|New|Enh|2017-03-13|Tomcat NIO Connector not able to handle SSL renego|
|61668|Ver|Min|2017-10-26|Possible NullPointerException in org.apache.coyote|
|61877|New|Enh|2017-12-08|use web.xml from CATALINA_HOME by default |
|61917|New|Enh|2017-12-19|AddDefaultCharsetFilter only supports text/* respo|
|62150|New|Enh|2018-03-01|Behavior of relative paths with RequestDispatcher |
|62214|New|Enh|2018-03-22|The "userSubtree=true" and "roleSubtree=true" in J|
|62245|New|Enh|2018-04-02|[Documentation] Mention contextXsltFile in Default|
|62496|New|Enh|2018-06-27|Add possibility write remote user/auth type to res|
|62912|New|Enh|2018-11-15|Tomcat adds a space character in the Content-Type |
|63080|New|Enh|2019-01-16|Support rfc7239 Forwarded header  |
|63195|Inf|Enh|2019-02-21|Add easy way to test RemoteIpValve works properly |
|63285|New|Nor|2019-03-25|service.bat does not handle changed "Windows Servi|
|63286|New|Enh|2019-03-25|Inconsistencies between AccessLogValve and mod_log|
|63492|New|Cri|2019-06-08|close_time No recovery|

Bug report for Taglibs [2019/06/09]

[bugzilla]

+---+
| Bugzilla Bug ID   |
| +-+
| | Status: UNC=Unconfirmed NEW=New ASS=Assigned|
| | OPN=ReopenedVER=Verified(Skipped Closed/Resolved)   |
| |   +-+
| |   | Severity: BLK=Blocker CRI=Critical  REG=Regression  MAJ=Major   |
| |   |   MIN=Minor   NOR=NormalENH=Enhancement TRV=Trivial |
| |   |   +-+
| |   |   | Date Posted |
| |   |   |  +--+
| |   |   |  | Description  |
| |   |   |  |  |
|38193|Ass|Enh|2006-01-09|[RDC] BuiltIn Grammar support for Field   |
|38600|Ass|Enh|2006-02-10|[RDC] Enable RDCs to be used in X+V markup (X+RDC)|
|42413|New|Enh|2007-05-14|[PATCH] Log Taglib enhancements   |
|46052|New|Nor|2008-10-21|SetLocaleSupport is slow to initialize when many l|
|48333|New|Enh|2009-12-02|TLD generator |
|57548|New|Min|2015-02-08|Auto-generate the value for org.apache.taglibs.sta|
|57684|New|Min|2015-03-10|Version info should be taken from project version |
|59359|New|Enh|2016-04-20|(Task) Extend validity period for signing KEY - be|
|59668|New|Nor|2016-06-06|x:forEach retains the incorrect scope when used in|
|61875|New|Nor|2017-12-08|Investigate whether Xalan can be removed  |
+-+---+---+--+--+
| Total   10 bugs   |
+---+

-
To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org
For additional commands, e-mail: dev-h...@tomcat.apache.org

Bug report for Tomcat 7 [2019/06/09]

[bugzilla]

+---+
| Bugzilla Bug ID   |
| +-+
| | Status: UNC=Unconfirmed NEW=New ASS=Assigned|
| | OPN=ReopenedVER=Verified(Skipped Closed/Resolved)   |
| |   +-+
| |   | Severity: BLK=Blocker CRI=Critical  REG=Regression  MAJ=Major   |
| |   |   MIN=Minor   NOR=NormalENH=Enhancement TRV=Trivial |
| |   |   +-+
| |   |   | Date Posted |
| |   |   |  +--+
| |   |   |  | Description  |
| |   |   |  |  |
|50944|Ver|Blk|2011-03-18|JSF: java.lang.NullPointerException at com.sun.fac|
|53620|New|Enh|2012-07-30|[juli] delay opening a file until something gets l|
|55104|New|Enh|2013-06-16|Allow passing arguments with spaces to Commons Dae|
|55470|New|Enh|2013-08-23|Help users for ClassNotFoundExceptions during star|
|55477|New|Enh|2013-08-23|Add a solution to map an realm name to a security |
|56148|New|Enh|2014-02-17|support (multiple) ocsp stapling  |
|56181|New|Enh|2014-02-23|RemoteIpValve & RemoteIpFilter: HttpServletRequest|
|56300|New|Enh|2014-03-22|[Tribes] No useful examples, lack of documentation|
|56438|New|Enh|2014-04-21|If jar scan does not find context config or TLD co|
|56614|New|Enh|2014-06-12|Add a switch to ignore annotations detection on ta|
|56787|New|Enh|2014-07-29|Simplified jndi name parsing  |
|57367|New|Enh|2014-12-18|If JAR scan experiences a stack overflow, give the|
|57827|New|Enh|2015-04-17|Enable adding/removing of members via jmx in a sta|
|57872|New|Enh|2015-04-29|Do not auto-switch session cookie to version=1 due|
|57892|New|Enh|2015-05-05|Log once a warning if a symbolic link is ignored (|
|59716|New|Enh|2016-06-17|Allow JNDI configuration of CorsFilter|
|60597|New|Enh|2017-01-17|Add ability to set cipher suites for websocket cli|
|63167|New|Enh|2019-02-12|Network Requirements To Resolve No Members Active |
+-+---+---+--+--+
| Total   18 bugs   |
+---+

-
To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org
For additional commands, e-mail: dev-h...@tomcat.apache.org

Bug report for Tomcat Native [2019/06/09]

[bugzilla]

+---+
| Bugzilla Bug ID   |
| +-+
| | Status: UNC=Unconfirmed NEW=New ASS=Assigned|
| | OPN=ReopenedVER=Verified(Skipped Closed/Resolved)   |
| |   +-+
| |   | Severity: BLK=Blocker CRI=Critical  REG=Regression  MAJ=Major   |
| |   |   MIN=Minor   NOR=NormalENH=Enhancement TRV=Trivial |
| |   |   +-+
| |   |   | Date Posted |
| |   |   |  +--+
| |   |   |  | Description  |
| |   |   |  |  |
|53940|New|Enh|2012-09-27|Added support for new CRL loading after expiration|
|57815|New|Enh|2015-04-15|Improve error message when OpenSSL does not suppor|
|59286|New|Nor|2016-04-07|Socket binding failures when using APR|
|62626|Inf|Nor|2018-08-15|Tomcat 9.0.10 APR/Native crashes  |
|62911|New|Enh|2018-11-15|Add support for proxying ocsp  requests via ProxyH|
|63159|New|Nor|2019-02-08|Problem with native/Makefile.in introduced with na|
|63199|New|Nor|2019-02-22|sslsocket handshake JVM crash |
|63356|Opn|Maj|2019-04-16|OCSP_parse_url error while parsing Authority Infor|
|63405|New|Nor|2019-05-06|Tomcat 7.0.91.0 EXCEPTION_ACCESS_VIOLATION - Probl|
+-+---+---+--+--+
| Total9 bugs   |
+---+

-
To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org
For additional commands, e-mail: dev-h...@tomcat.apache.org

Bug report for Tomcat Connectors [2019/06/09]

[bugzilla]

+---+
| Bugzilla Bug ID   |
| +-+
| | Status: UNC=Unconfirmed NEW=New ASS=Assigned|
| | OPN=ReopenedVER=Verified(Skipped Closed/Resolved)   |
| |   +-+
| |   | Severity: BLK=Blocker CRI=Critical  REG=Regression  MAJ=Major   |
| |   |   MIN=Minor   NOR=NormalENH=Enhancement TRV=Trivial |
| |   |   +-+
| |   |   | Date Posted |
| |   |   |  +--+
| |   |   |  | Description  |
| |   |   |  |  |
|46767|New|Enh|2009-02-25|mod_jk to send DECLINED in case no fail-over tomca|
|47327|New|Enh|2009-06-07|Return tomcat authenticated user back to mod_jk (A|
|47750|New|Maj|2009-08-27|ISAPI: Loss of worker settings when changing via j|
|47795|New|Maj|2009-09-07|service sticky_session not being set correctly wit|
|48830|New|Nor|2010-03-01|IIS shutdown blocked in endpoint service when serv|
|49822|New|Enh|2010-08-25|Add hash lb worker method |
|49903|New|Enh|2010-09-09|Make workers file reloadable  |
|52483|New|Enh|2012-01-18|Print JkOptions's options in log file and jkstatus|
|53883|Inf|Maj|2012-09-17|isapi_redirect v 1.2.37 crashes w3wp.exe  on the p|
|54621|New|Enh|2013-02-28|[PATCH] custom mod_jk availability checks |
|56489|New|Enh|2014-05-05|Include a directory for configuration files   |
|56576|New|Enh|2014-05-29|Websocket support |
|57402|New|Enh|2014-12-30|Provide correlation ID between mod_jk log and acce|
|57403|New|Enh|2014-12-30|Persist configuration changes made via status work|
|57407|New|Enh|2014-12-31|Make session_cookie, session_path and session_cook|
|57790|New|Enh|2015-04-03|Check worker names for typos  |
|61476|New|Enh|2017-09-01|Allow reset of an individual worker stat value|
|61621|New|Enh|2017-10-15|Content-Type is forced to lowercase when it goes t|
|62093|New|Enh|2018-02-09|Allow use_server_errors to apply to specific statu|
|63214|New|Nor|2019-02-27|Using JkAutoAlias, Filenames with Spaces Cannot be|
+-+---+---+--+--+
| Total   20 bugs   |
+---+

-
To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org
For additional commands, e-mail: dev-h...@tomcat.apache.org