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How to read the value of a private field from a different class in Java?
... @legend you can install a security manager to forbid such access. Since Java 9, such access is not supposed to work across module borders (unless a module is open explicitly), though there’s a transitional phase regarding enforcement of the new rules. Besides that, requiring additional effort l...
File inside jar is not visible for spring
... They are in the same jar, but I tried your solution with the same result: java.io.FileNotFoundException: class path resource [classpath*:my.config] cannot be resolved to URL because it does not exist
– BTakacs
Feb 15 '13 at 7:57
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Synthetic Class in Java
What is a synthetic class in Java? Why should it be used? How can I use it?
13 Answers
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Running JAR file on Windows
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Easiest route is probably upgrading or re-installing the Java Runtime Environment (JRE).
Or this:
Open the Windows Explorer, from the Tools select 'Folder Options...'
Click the File Types tab, scroll down and select JAR File type.
Press the Advanced button.
In the Edit File Type...
How do you Force Garbage Collection from the Shell?
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You can do this via the free jmxterm program.
Fire it up like so:
java -jar jmxterm-1.0-alpha-4-uber.jar
From there, you can connect to a host and trigger GC:
$>open host:jmxport
#Connection to host:jmxport is opened
$>bean java.lang:type=Memory
#bean is set to java.lang:type=Memor...
Java: Multiple class declarations in one file
In Java, you can define multiple top level classes in a single file, providing that at most one of these is public (see JLS §7.6 ). See below for example.
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java.nio.file.Path for a classpath resource
...sspath resource (e.g. what I'd get from Class.getResource(String) ) as a java.nio.file.Path ? Ideally, I'd like to use the fancy new Path APIs with classpath resources.
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How many threads can a Java VM support?
How many threads can a Java VM support? Does this vary by vendor? by operating system? other factors?
12 Answers
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How to escape text for regular expression in Java
Does Java have a built-in way to escape arbitrary text so that it can be included in a regular expression? For example, if my users enter "$5", I'd like to match that exactly rather than a "5" after the end of input.
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How to present a simple alert message in java?
...ng from .NET i am so used calling Alert() in desktop apps. However in this java desktop app, I just want to alert a message saying "thank you for using java" I have to go through this much suffering:
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