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Persistent invalid graphics state error when using ggplot2
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I found this to occur when you mix ggplot charts with plot charts in the same session. Using the 'dev.off' solution suggested by Paul solves the issue.
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Retrieving the inherited attribute names/values using Java Reflection
...ues of ChildObj, including the inherited attributes too, using Java reflection mechanism?
14 Answers
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Why is the clone() method protected in java.lang.Object?
... Josh Bloch's Effective Java:
"The Cloneable interface was intended as a mixin interface for objects to advertise that they permit cloning. Unfortunately it fails to serve this purpose ... This is a highly atypical use of interfaces and not one to be emulated ... In order for implementing the inte...
How do I import other TypeScript files?
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export {AClass, valueZero} // pick the one you want to export
}
Or even mix both together
{
class AClass(){} // not exported yet
export valueZero = 0; // will be available for import
export {AClass} // add AClass to the export list
}
For the import you have 2 options, first you pick again what...
Get free disk space
Given each of the inputs below, I'd like to get free space on that location. Something like
13 Answers
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What's the best way of implementing a thread-safe Dictionary?
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But now, seeing as you're having to write externally locking code, you're mixing up internal and external synchronisation, which always leads to problems such as unclear code and deadlocks. So ultimately you're probably better to either:
Use a normal Dictionary<TKey, TValue> and synchronize...
Mockito: InvalidUseOfMatchersException
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I had the same problem for a long time now, I often needed to mix Matchers and values and I never managed to do that with Mockito.... until recently !
I put the solution here hoping it will help someone even if this post is quite old.
It is clearly not possible to use Matchers AND valu...
Is a Java string really immutable?
... the source of some head-scratching moments when you add reflection to the mix.
– cHao
Jan 24 '14 at 2:17
Test1 and Te...
mysql check collation of a table
...s utf8_unicode_ci. This can cause error messages like HY000, 1267, Illegal mix of collations (utf8_general_ci,IMPLICIT) and (utf8_unicode_ci,IMPLICIT) for operation '='... which is the message that brought me to this page.
– Dewi Morgan
Sep 24 '18 at 19:15
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What are some popular naming conventions for Unit Tests? [closed]
...tify the code, then you have bigger problems, your test code should not be mixed up with your production code.
As for length and use of underscore, its test code, who the hell cares? Only you and your team will see it, so long as it is readable, and clear about what the test is doing, carry on! :)
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