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How to test my servlet using JUnit
I have created a web system using Java Servlets and now want to make JUnit testing. My dataManager is just a basic piece of code that submits it to the database. How would you test a Servlet with JUnit?
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How to assert greater than using JUnit Assert?
...Than(Long.parseLong(currentTokenValues[1])));
That gives an error like:
java.lang.AssertionError: timestamp
Expected: a value greater than <456L>
but: <123L> was less than <456L>
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Difference between ProcessBuilder and Runtime.exec()
I'm trying to execute an external command from java code, but there's a difference I've noticed between Runtime.getRuntime().exec(...) and new ProcessBuilder(...).start() .
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Why doesn't the example compile, aka how does (co-, contra-, and in-) variance work?
...ed in the presence of mutable data. This is why generics are invariant in Java. Brief example of unsoundness using Java arrays (which are erroneously covariant):
Object[] arr = new Integer[1];
arr[0] = "Hello, there!";
We just assigned a value of type String to an array of type Integer[]. For ...
Is it a bad practice to catch Throwable?
... a Error/Throwable if I don't catch it? I didn't see anything in the logs. Java EE app. Just spent days stuck not knowing what the problem was until I added this catch.
– Philip Rego
Nov 26 '18 at 19:47
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How many constructor arguments is too many?
...has been passed an illegal or inappropriate argument." see docs.oracle.com/javase/7/docs/api/java/lang/…)
– Grmpfhmbl
May 4 '17 at 13:27
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How to add reference to a method parameter in javadoc?
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As far as I can tell after reading the docs for javadoc there is no such feature.
Don't use <code>foo</code> as recommended in other answers; you can use {@code foo}. This is especially good to know when you refer to a generic type such as {@code Iterator<...
Android ACTION_IMAGE_CAPTURE Intent
...lolipop: ava.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.net.Uri.getScheme()' on a null object reference
– Igor Janković
Aug 16 '16 at 13:56
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“Invalid signature file” when attempting to run a .jar
My java program is packaged in a jar file and makes use of an external jar library, bouncy castle . My code compiles fine, but running the jar leads to the following error:
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Can I exclude some concrete urls from inside ?
...ollowin error; Uncaught exception thrown by filter Static Resource Filter: java.io.FileNotFoundException. Any idea why ?
– shamaleyte
Jun 29 '15 at 16:48
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