Add Template For Java In Install The Latest

Oracles Java installer inexplicably doesnt add the path to Java or set the JAVAHOME environment variable, so youll get an error that you need to install the latest JDK, even though you just did.

Add Template For Java In How To Fix It

There are lots of sites telling you how to fix it, but few of the answers actually work.

The problem is that its hidden at the bottom of the twelfth Stackoverflow discussion youll find.

Here it is right at the top of this post so you can do it yourself quickly.

Cut paste in this line: export JAVAHOMELibraryInternet Plug-InsJavaAppletPlugin.pluginContentsHome Press the esc key to leave insertion mode.

Enter this command: source.bashprofile Enter this command to ensure the changes took effect: echo JAVAHOME.

Further, because you didnt change your path andor use a specific Java version, you should be able to install Java updates and not lose functionality.

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My class PKladrBuilding parent implements interface Serializable.

Inspections Serialization issues Serializable class without serialVersionUID enabled, the class you provide give me warnings.

Try this a few times if it does not work as intended the first time).

Then you can click on the create field option to create the uid.

It is a dumb feature that stems from the general misunderstanding of how that ID is used by Java.

You should be giving these IDs meaningful, readable values, e.g.

L, and incrementing them each time you think the new version of the class should render all previous versions (that might be previously serialized) obsolete.

All utilities that generate such IDs basically do what the JVM does when the ID is not defined: they generate the value based on the content of the class file, hence coming up with unreadable meaningless long integers.

If you want each and every version of your class to be distinct (in the eyes of the JVM) then you should not even specify the serialVersionUID value isnce the JVM will produce one on the fly, and the value of each version of your class will be unique.

The purpose of defining that value explicitly is to tell the serialization mechanism to treat different versions of the class that have the same SVUID as if they are the same, e.g.

So, if you define the ID and never change it (and I assume thats what you do since you rely on the auto-generation, and you probably never re-generate your IDs) you are ensuring that all - even absolutely different - versions of your class will be considered the same by the serialization mechanism.

Is that what you want If not, and if you indeed want to have control over how your objects are recognized, you should be using simple values that you yourself can understand and easily update when you decide that the class has changed significantly.

Maybe I dont need to use random numbers but can start with 1 and increment it.

However, 3L doesnt have more meaning to me then -3518231192373568183L.

The random number might have the advantage that it woks on non-linear histories with forks and branches, though.

To configure go to Android Studio Preferences Editor Live Templates and create a new one there (plus icon) with this value and use edit variables to enter the script.

You will then get a context menu where you can choose where to run the inspections on (e.g.

It found the missing variable and presented the option to add it.

Youll get a popover that says Randomly Change serialVersionUID Initializer.

Just hit enter, and itll populate that space with a random long.

I come up some simple script to fulfill this goal with ease.

Then you run it in the root directory of your Maven or Gradle project like.

It is ideal for a situation when you want to amend a huge number of classes which had no serialVersionUID set in the first place while maintain the compatibility with the old classes.

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