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Recursive Lock (Mutex) vs Non-Recursive Lock (Mutex)
... it is only because you have not had to debug a problem like this before. Java has non-reentrant locks these days in java.util.concurrent.locks, by the way.
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Developing cross platform mobile application [closed]
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As far as I know most of those devices are able to run this:
Java ME - the Most Ubiquitous Application Platform for Mobile Devices
I think this can serve both as good and bad example.
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Java JTable setting Column Width
...inWidth(400) on the last column instead of setPreferredWidth(400)?
In the JavaDoc for JTable, read the docs for doLayout() very carefully. Here are some choice bits:
When the method is called as a result of the resizing of an enclosing window, the
resizingColumn is null. This means that resi...
How do you configure logging in Hibernate 4 to use SLF4J
...ook to https://github.com/jboss-logging/jboss-logging/blob/master/src/main/java/org/jboss/logging/LoggerProviders.java:
static final String LOGGING_PROVIDER_KEY = "org.jboss.logging.provider";
private static LoggerProvider findProvider() {
// Since the impl classes refer to the back-end framew...
Mockito + PowerMock LinkageError while mocking system class
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Try adding this annotation to your Test class:
@PowerMockIgnore("javax.management.*")
Worked for me.
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Seeking clarification on apparent contradictions regarding weakly typed languages
...ut "02" lt 10, while "02" == 2). (Mind you, certain other languages, like JavaScript, try to accommodate Perl-like weak typing while also doing operator overloading. This often leads to ugliness, like the loss of associativity for +.)
(The fly in the ointment here is that, for historical reasons,...
Best way of invoking getter by reflection
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I think this should point you towards the right direction:
import java.beans.*
for (PropertyDescriptor pd : Introspector.getBeanInfo(Foo.class).getPropertyDescriptors()) {
if (pd.getReadMethod() != null && !"class".equals(pd.getName()))
System.out.println(pd.getReadMethod().i...
The Guava library: What are its most useful and/or hidden features? [closed]
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Note that we now have StandardCharsets in Java 7+. I wonder how many other of Guava's features have found their way into Java.
– DavidS
Mar 22 '16 at 23:32
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Check if application is on its first run [duplicate]
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import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.util.UUID;
import android.content.Context;
public class Util {
// =====...
Using ZXing to create an Android barcode scanning app [duplicate]
....2.1.jar into the libs folder
Click on project: choose "properties" -> "Java Compiler" to change level to 1.7. Then click on "Android" change "Project build target" to android 4.4.2+, because using 1.7 requires compiling with Android 4.4
If "CameraConfigurationUtils.java" don't exist in "zxing-ma...