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Dealing with “java.lang.OutOfMemoryError: PermGen space” error
... base-framework-level libraries.
See Classloader leaks: the dreaded "java.lang.OutOfMemoryError: PermGen space" exception, and especially its followup post.
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Android java.lang.VerifyError?
...nd see what's causing the verifyerror. It's probably some method in a java.lang class that is not supported on the android SDK level you are using (for instance, String.isEmpty()).
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Apache Commons equals/hashCode builder [closed]
...m curious to know, what people here think about using
org.apache.commons.lang.builder EqualsBuilder / HashCodeBuilder
for implementing the equals / hashCode ? Would it be a better practice than writing your own? Does it play well with Hibernate? What's your opinion?
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What is the simplest way to convert a Java string from all caps (words separated by underscores) to
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Take a look at WordUtils in the Apache Commons lang library:
Specifically, the capitalizeFully(String str, char[] delimiters) method should do the job:
String blah = "LORD_OF_THE_RINGS";
assertEquals("LordOfTheRings", WordUtils.capitalizeFully(blah, new char[]{'_'}).re...
How do I monitor the computer's CPU, memory, and disk usage in Java?
...gets you CPU and RAM. See ManagementFactory for more details.
import java.lang.management.ManagementFactory;
import java.lang.management.OperatingSystemMXBean;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
private static void printUsage() {
OperatingSystemMXBean operatingSy...
What is this: [Ljava.lang.Object;?
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[Ljava.lang.Object; is the name for Object[].class, the java.lang.Class representing the class of array of Object.
The naming scheme is documented in Class.getName():
If this class object represents a reference type that is not...
Get type of a generic parameter in Java with reflection
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I get this exception : Exception in thread "main" java.lang.ClassCastException: java.lang.Class cannot be cast to java.lang.reflect.ParameterizedType not sure what is the constraint .
– Dish
Feb 29 '16 at 14:25
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java.lang.IllegalStateException: Cannot (forward | sendRedirect | create session) after response has
...st/response, then the chance is big that you will get the exception:
java.lang.IllegalStateException: Cannot forward after response has been committed
If the if statement calls a forward() and you're afterwards calling sendRedirect() or sendError(), then below exception will be thrown:
java.lang....
Pelican 3.3 pelican-quickstart error “ValueError: unknown locale: UTF-8”
... add some lines to your ~/.bash_profile:
export LC_ALL=en_US.UTF-8
export LANG=en_US.UTF-8
There is an outstanding bug report related to this issue. It appears that Python makes some assumptions about the format of locale names that aren't universally valid. Explicitly setting these environment...
How to change language settings in R
My error messages are displayed in French. How can I change my system language setting so the error messages will be displayed in English?
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