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java.lang.OutOfMemoryError: GC overhead limit exceeded [duplicate]
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Using string intern method has always been a very bad idea. Because String pool has a fixed size and cannot grow at runtime when it's needed. JVM enginner, Aleksey Shipilev has even a talk on this topic ("Java.lang.String Catechism").
– G. Demecki
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How can I get the current stack trace in Java?
... That is very useful! When debugging using an IDE (for example, IntelliJ IDEA), it is great to use the ExceptionUtils.getStackTrace(new Throwable()) expression to get the stack trace.
– Sergey Brunov
Feb 21 '19 at 13:57
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How can I delete all of my Git stashes at once?
... do with it. git isn't a daemon; it only runs when you call it. It has no idea you closed the terminal.
– DylanYoung
Jan 9 '19 at 13:28
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What is a database transaction?
...u can't access data that another person has written halfway. But the basic idea is the same - transactions are there to ensure, that no matter what happens, the data you work with will be in a sensible state. They guarantee that there will NOT be a situation where money is withdrawn from one account...
Uncaught Error: SECURITY_ERR: DOM Exception 18 when I try to set a cookie
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Any idea how to get the base64 representation of a canvas in such a way that it doesn't throw this error?
– devios1
Apr 12 '12 at 0:22
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How to run a Python script in the background even after I logout SSH?
...nore the hangup signal and keep running. Output will be put in nohup.out.
Ideally, you'd run your script with something like supervise so that it can be restarted if (when) it dies.
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improv...
Looking for simple Java in-memory cache [closed]
... Adam commented, synchronising a map has a performance hit. Not saying the idea doesn't have hairs on it, but would suffice as a quick and dirty solution.)
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Eclipse - “Workspace in use or cannot be created, chose a different one.” [duplicate]
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It helped 6000+ people but didn't solve for me :( any ideas?
– reubenjohn
May 22 '14 at 16:46
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Altering a column: null to not null
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Just wanted to chime in and say that it's a good idea to explicitly name your constraints, defaults included. If you ever need to drop a column you'll have to know the name of the constraint to drop before you'll be able to. Ran into this in our DB migrations a few times. I...
How can I detect if a selector returns null?
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My preference, and I have no idea why this isn't already in jQuery:
$.fn.orElse = function(elseFunction) {
if (!this.length) {
elseFunction();
}
};
Used like this:
$('#notAnElement').each(function () {
alert("Wrong, it is an element")
}).or...