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Posted to dev@velocity.apache.org by "Claude Brisson (JIRA)" <ji...@apache.org> on 2018/10/08 19:45:00 UTC
[jira] [Closed] (VELOCITY-775) Hanging in jj_scan_token
[ https://issues.apache.org/jira/browse/VELOCITY-775?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Claude Brisson closed VELOCITY-775.
-----------------------------------
> Hanging in jj_scan_token
> ------------------------
>
> Key: VELOCITY-775
> URL: https://issues.apache.org/jira/browse/VELOCITY-775
> Project: Velocity
> Issue Type: Bug
> Components: Engine
> Environment: Velocity 1.6.3
> Reporter: Dominik Stadler
> Assignee: Claude Brisson
> Priority: Major
> Fix For: 2.0
>
>
> I have the same issue as reported in VELOCITY-562, velocity hangs in method Parser.jj_scan_token(). I can reproduce it by running heavy load on my application for a few hours.
> Currently running 1.6.3, I looked at the issues fixed in 1.6.4, VELOCITY-718 seems not related, but I will now upgrade to 1.6.4 and see if the same happens again.
> The application is using velocity in up to 3 threads simultaneously, nothing is shared between threads, relevant stack traces from a thread dump are as follows, one thread is currently not inside velocity at all:
> "1334671070@qtp-2060763463-85" prio=6 tid=0x00000000181c5800 nid=0x6004 runnable [0x00000000110dd000]
> java.lang.Thread.State: RUNNABLE
> at org.apache.velocity.runtime.parser.Parser.jj_scan_token(Parser.java:3340)
> at org.apache.velocity.runtime.parser.Parser.jj_3R_56(Parser.java:2768)
> at org.apache.velocity.runtime.parser.Parser.jj_3R_29(Parser.java:3000)
> at org.apache.velocity.runtime.parser.Parser.jj_3_8(Parser.java:2834)
> at org.apache.velocity.runtime.parser.Parser.jj_3_7(Parser.java:2878)
> at org.apache.velocity.runtime.parser.Parser.jj_2_7(Parser.java:2560)
> at org.apache.velocity.runtime.parser.Parser.Reference(Parser.java:1317)
> at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:354)
> at org.apache.velocity.runtime.parser.Parser.IfStatement(Parser.java:1530)
> at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:346)
> at org.apache.velocity.runtime.parser.Parser.Directive(Parser.java:888)
> at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:373)
> at org.apache.velocity.runtime.parser.Parser.process(Parser.java:311)
> at org.apache.velocity.runtime.parser.Parser.parse(Parser.java:105)
> at org.apache.velocity.runtime.RuntimeInstance.parse(RuntimeInstance.java:1131)
> at org.apache.velocity.runtime.RuntimeInstance.parse(RuntimeInstance.java:1086)
> at org.apache.velocity.Template.process(Template.java:124)
> at org.apache.velocity.runtime.resource.ResourceManagerImpl.loadResource(ResourceManagerImpl.java:446)
> at org.apache.velocity.runtime.resource.ResourceManagerImpl.getResource(ResourceManagerImpl.java:354)
> at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1400)
> at org.apache.velocity.runtime.directive.Parse.render(Parse.java:198)
> at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:175)
> at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:336)
> at org.apache.velocity.Template.merge(Template.java:328)
> at org.apache.velocity.Template.merge(Template.java:235)
> "1946923020@qtp-2060763463-4" prio=6 tid=0x000000000c6dc000 nid=0x48a4 runnable [0x0000000013bcd000]
> java.lang.Thread.State: RUNNABLE
> at org.apache.velocity.runtime.parser.Parser.jj_scan_token(Parser.java:3340)
> at org.apache.velocity.runtime.parser.Parser.jj_3R_56(Parser.java:2768)
> at org.apache.velocity.runtime.parser.Parser.jj_3R_29(Parser.java:3000)
> at org.apache.velocity.runtime.parser.Parser.jj_3_8(Parser.java:2834)
> at org.apache.velocity.runtime.parser.Parser.jj_3_7(Parser.java:2878)
> at org.apache.velocity.runtime.parser.Parser.jj_2_7(Parser.java:2560)
> at org.apache.velocity.runtime.parser.Parser.Reference(Parser.java:1317)
> at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:354)
> at org.apache.velocity.runtime.parser.Parser.Directive(Parser.java:888)
> at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:373)
> at org.apache.velocity.runtime.parser.Parser.process(Parser.java:311)
> at org.apache.velocity.runtime.parser.Parser.parse(Parser.java:105)
> at org.apache.velocity.runtime.RuntimeInstance.parse(RuntimeInstance.java:1131)
> at org.apache.velocity.runtime.RuntimeInstance.parse(RuntimeInstance.java:1086)
> at org.apache.velocity.Template.process(Template.java:124)
> at org.apache.velocity.runtime.resource.ResourceManagerImpl.loadResource(ResourceManagerImpl.java:446)
> at org.apache.velocity.runtime.resource.ResourceManagerImpl.getResource(ResourceManagerImpl.java:354)
> at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1400)
> at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1380)
> at org.apache.velocity.runtime.VelocimacroFactory.initVelocimacro(VelocimacroFactory.java:202)
> - locked <0x00000000cd74bae8> (a org.apache.velocity.runtime.VelocimacroFactory)
> at org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:261)
> - locked <0x00000000cd950eb8> (a org.apache.velocity.runtime.RuntimeInstance)
> at org.apache.velocity.app.VelocityEngine.init(VelocityEngine.java:107)
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