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how to check the jdk version used to compile a .class file [duplicate]
(5 answers)
Closed 9 years ago.
Is it possible somehow to get java version that was used to build class? Is there are any information compiled into class file? Possible there is some specific headers/footers or something like that.
Yes. You can find the version of JDK on which the class was compiled. Refer here.
Related
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Setting up Eclipse with JRE Path
(12 answers)
Eclipse will not open due to environment variables [duplicate]
(13 answers)
Closed 2 years ago.
Long story short I installed some plugins and extensions and now eclipse doesn't start.I was wondering how could i change the JVM , I already installed a the newer version required but i don't know how to change it.
JVM not compatible popup
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Where can I find the Java JDK source code? [closed]
(11 answers)
Closed 4 years ago.
Java has number of predefined methods, but where to find the source code of these methods ?
In the JDK folder, there will be src.zip
C:\Program Files\Java\jdk1.8.X_XXX\src.zip
If you want to see the source code of the Java Classes,
Open the Java Class -> Attach Source [If the source was not already attached] -> Point to the src.zip
Now the Source code for Java classes will be displayed in the editor
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How to resolve java.lang.NoClassDefFoundError: javax/xml/bind/JAXBException
(43 answers)
Closed 5 years ago.
I tried migrating my project from JDK 1.8 to Java 9, but it wouldn't compile. My project uses a lot of javax.xml.bind.annotation classes and it seems they are missing. Were they moved somewhere or deprecated?
This is marked for removal( and moved to module java.xml.bind), you can refer to documentation here:
Java Docs API
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Is the source code of native methods available?
(2 answers)
Closed 8 years ago.
Using eclipse, I see that methods like System.nanotime() or System.arraycopy() are native.
However I could not see the definitions of these methods.
Where are can I find the definitions , and more importantly what language are those methods written in ?
Install the Java SE Development Kit from http://java.sun.com/javase/downloads/index.jsp.
Once installed, you should find an archive called src.zip in the top of the JDK installation directory. The Java source code is in there.
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SASS implementation for Java? [closed]
(12 answers)
Closed 8 years ago.
Is there a Java library for compiling SASS files to CSS files on the fly? Note that build tool plugins will not work for our use case. Thanks.
This appears to do the job https://github.com/darrinholst/sass-java. Else a github search generally finds something good.