OutOfMemoryError：超出了GC开销限制

Question

I seem to be getting this exception:

Execution exception
InvocationTargetException occured : null

play.exceptions.JavaExecutionException
    at play.mvc.ActionInvoker.invoke(ActionInvoker.java:239)
    at Invocation.HTTP Request(Play!)
Caused by: java.lang.reflect.InvocationTargetException
    at play.mvc.ActionInvoker.invokeWithContinuation(ActionInvoker.java:557)
    at play.mvc.ActionInvoker.invoke(ActionInvoker.java:508)
    at play.mvc.ActionInvoker.invokeControllerMethod(ActionInvoker.java:484)
    at play.mvc.ActionInvoker.invokeControllerMethod(ActionInvoker.java:479)
    at play.mvc.ActionInvoker.invoke(ActionInvoker.java:161)
    ... 1 more
Caused by: java.lang.OutOfMemoryError: GC overhead limit exceeded
    at java.util.Arrays.copyOf(Arrays.java:2367)
    at java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:130)
    at java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:114)
    at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:415)
    at java.lang.StringBuilder.append(StringBuilder.java:132)
    at play.data.binding.Unbinder.unBind(Unbinder.java:106)
    at play.data.binding.Unbinder.unBind(Unbinder.java:63)
    at play.data.binding.Unbinder.unBind(Unbinder.java:110)
    at play.data.binding.Unbinder.unBind(Unbinder.java:110)
    at play.data.binding.Unbinder.unBind(Unbinder.java:63)
    at play.data.binding.Unbinder.unBind(Unbinder.java:110)
    at play.data.binding.Unbinder.unBind(Unbinder.java:110)
    at play.data.binding.Unbinder.unBind(Unbinder.java:63)
    at play.data.binding.Unbinder.unBind(Unbinder.java:110)
    at play.data.binding.Unbinder.unBind(Unbinder.java:110)
    at play.data.binding.Unbinder.unBind(Unbinder.java:63)
    at play.data.binding.Unbinder.unBind(Unbinder.java:110)
    at play.data.binding.Unbinder.unBind(Unbinder.java:110)
    at play.data.binding.Unbinder.unBind(Unbinder.java:63)
    at play.data.binding.Unbinder.unBind(Unbinder.java:110)
    at play.data.binding.Unbinder.unBind(Unbinder.java:110)
    at play.data.binding.Unbinder.unBind(Unbinder.java:63)
    at play.data.binding.Unbinder.unBind(Unbinder.java:110)
    at play.data.binding.Unbinder.unBind(Unbinder.java:110)
    at play.data.binding.Unbinder.unBind(Unbinder.java:63)
    at play.data.binding.Unbinder.unBind(Unbinder.java:110)
    at play.data.binding.Unbinder.unBind(Unbinder.java:110)
    at play.data.binding.Unbinder.unBind(Unbinder.java:63)
    at play.data.binding.Unbinder.unBind(Unbinder.java:110)
    at play.data.binding.Unbinder.unBind(Unbinder.java:110)
    at play.data.binding.Unbinder.unBind(Unbinder.java:63)
    at play.data.binding.Unbinder.unBind(Unbinder.java:110)

My code is:

"".equals(question.uniqueID)

where question is a model and uniqueID is a String. I'm using play framework 1.2.6 and this is totally unexpected. SO is asking for me to write some more text so I'm trying.

Answer 1

My code is: "".equals(question.uniqueID) where question is a model and uniqueID is a String.

That doesn't match he stack trace so I don't this is the cause of an OOME.

I'm using play framework 1.2.6 and this is totally unexpected.

You can run low on memory in any system, esp a high level one like Play, so not that unexpected. The first thing I would try increasing your maximum heap size to at least 1 GB if not 16 GB (if you have that much)