Hi,
I have a very simple single page app using Java 7 + Spring Boot 1.3.3 +
Groovy Template (using Groovy 2.4.6).
The app starts hanging after it starts and gets hit for a while (it can be
as short as just few hours).
The thread dump shows that hundreds of threads are waiting to lock a
java.util.HashMap, like this:
"http-nio-9044-exec-294" daemon prio=10 tid=0x00007f54d0b68000 nid=0x7632
waiting for monitor entry [0x00007f54c99d6000]
java.lang.Thread.State: BLOCKED (on object monitor)
at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:266)
- waiting to lock <0x0000000786748cd8> (a java.util.HashMap)
at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:254)
at
groovy.text.markup.MarkupTemplateEngine$TemplateGroovyClassLoader.parseClass(MarkupTemplateEngine.java:252)
This seems similar to GROOVY-4127, but that issue was fixed a long time ago.
If anyone needs, I can send the full thread dump.
Thanks,
Su
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