jvm Archives - Page 3 of 5

Why would you ever implement finalize()?

I’ve been reading through a lot of the rookie Java questions on finalize() and find it kind of bewildering that no one has ...

May 9, 2022
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Real differences between “java -server” and “java -client”?

Is there any real practical difference between “java -server” and “java -client”? All I can find on Sun’s site is a vague “-server ...

May 7, 2022
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Does Java JIT cheat when running JDK code?

I was benchmarking some code, and I could not get it to run as fast as with java.math.BigInteger, even when using the exact ...

May 7, 2022
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How to deal with “java.lang.OutOfMemoryError: Java heap space” error?

I am writing a client-side Swing application (graphical font designer) on Java 5. Recently, I am running into java.lang.OutOfMemoryError: Java heap space error ...

May 3, 2022
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How can I tell if I’m running in 64-bit JVM or 32-bit JVM (from within a program)?

How can I tell if the JVM in which my application runs is 32 bit or 64-bit? Specifically, what functions or properties I ...

April 30, 2022
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Cannot inline bytecode built with JVM target 1.8 into bytecode that is being built with JVM target 1.6

When trying to run the Example CorDapp (GitHub CorDapp) via IntelliJ, I receive the following error: Cannot inline bytecode built with JVM target ...

April 24, 2022
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How do I write a correct micro-benchmark in Java?

How do you write (and run) a correct micro-benchmark in Java? I’m looking for some code samples and comments illustrating various things to ...

April 17, 2022
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What are the -Xms and -Xmx parameters when starting JVM?

Please explain the use of the Xms and Xmx parameters in JVMs. What are the default values for them? 5 The flag Xmx ...

April 13, 2022
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How to fix java.lang.UnsupportedClassVersionError: Unsupported major.minor version

I am trying to use Notepad++ as my all-in-one tool edit, run, compile, etc. I have JRE installed, and I have setup my ...

April 11, 2022
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What are the -Xms and -Xmx parameters when starting JVM?

The flag Xmx specifies the maximum memory allocation pool for a Java Virtual Machine (JVM), while Xms specifies the initial memory allocation pool. ...

April 8, 2022
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