I cannot get getResourceAsStream to find a file. I have put the file in the top level dir, target dir, etc, etc and have tried it with a "/" in front as well. Everytime it returns null.
Any suggestions ? Thanks.
public class T {
public static final void main(String[] args) {
InputStream propertiesIS = T.class.getClassLoader().getResourceAsStream("test.txt");
System.out.println("Break");
}
}
Put your file "test.txt" into the same directory where the java file of your class is (same package). Then use
T.class.getResourceAsStream( "test.txt" );
This works, because eclipse automatically copies the file as a resource to the classpath. When using the command line, you have to do this by hand.
You shouldn't need to add these files to the same directory to get it to work.
I was getting this symptom when I created a new Package and Source Folder to hold my junit tests. The tests would fail because getResourceAsStream was returning null.
Here's how to fix it:
Right-click the class (in my case, the new junit test class) in the Eclipse Project Explorer View
Build Path -> Configure Build Path -> Java Build Path -> Source Tab -> Add Folder
Select the folder that holds your files.
Sometimes you need to tell eclipse explicitly what types of files to copy from the source folder to the distribution (classes) folder.
i have Eclipse SDK, Version: 3.7.1, Build id: M20110909-1335, Indigo and in this i did the following changes.
Project -> Properties -> Java Build Path -> Source (tab) -> Included (list item) -> Edit (button) to add */.txt to the existing */.java.
Also make sure your file does not match any pattern of Preference>Java>Compiler>Building>OutputFolder>Filtered resources:.
For example, if you set *.txt in that field, you will not get test.txt to the build output.
Putting my /resources/ folder into my /bin/ folder solved this issue for me.
Old question but I just had the same problem and none of the answers worked for me (or I didn't understand them).
In Eclipse, refresh the project directory to make Eclipse aware that a new file has been added to resources. For this, right-click on the project (topmost) directory in the package explorer view, then hit "Refresh". The same if you edit an existing resource file from outside eclipse: refresh to make eclipse aware of the edits.
