CODEWITHSUNDEEP
javaceclipseheaderjava-native-interface
holy
holy

Reputation: 632

How to generate JNI header file in Eclipse

I am using Eclipse to generate a JNI header file. I looked in program files\java\jre6\bin and found a lot of .exe and .dll files, but I couldn't find the command javah which was in the documentation for using JNI to create bindings to C libraries.
Any help?

Upvotes: 19

Views: 18482

Answers (3)

halo89
halo89

Reputation: 101

Location

// javah.exe path

C:\Program Files\Java\jdk1.7.0_79\bin\javah.exe

Working Directory

${workspace_loc:/${project_name}/bin}

Arguments

-classpath ${project_classpath} -v -d ${workspace_loc:/${project_name}/jni} ${java_type_name}

open java class and run tools

Upvotes: 0

Kai Mechel
Kai Mechel

Reputation: 753

Just some info...

Unfortunately the solution above did not work out for me, but the solution in this thread did:

Using javah -jni with an Eclipse project structure

With the above mentioned arguments, I got:

Exception in thread "main" java.lang.IllegalArgumentException: Not a valid class name:path/to/project

I found out, that the problem was a space character in the path to my project. Wrapping the paths in quotes did help for the solution above.

Upvotes: 2

Java42
Java42

Reputation: 7706

Use the following panel to define a new external tool for javah.exe.

Point "Location" to the javah.exe tool.

Set "Working Directory" to

${workspace_loc:/${project_name}/bin}

Set "Arguments" to:

-classpath ${project_classpath} -v -d ${workspace_loc:/${project_name}/src} ${java_type_name}

enter image description here

To run the tool, highlight the java source file in package explorer and run the tool.

enter image description here

Press F5 to refresh th project to see the newly generated file.

Upvotes: 34

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