'try catch' reconstruction from java 1.7 to java 1.6

Question

I am using a jar file from other person, but I need to add the source codes into my project and compile them when I import such packages. The issue is this jar file seems to generated by java1.7 so it uses some java1.7 fetures. But I am using java1.6. For this source codes:

public Properties getDefaults() {
    try (InputStream stream
            = getClass().getResourceAsStream(PROPERTY_FILE)) {

        Properties properties = new Properties();
        properties.load(stream);
        return properties;

    } catch (IOException e) {
        throw new RuntimeException(e);

    }
}

The eclipse gives such error hints:

Resource specification not allowed here for source level below 1.7

Then how could I rewrite such codes so that it can be handled by java1.6?

You have to go back to using the good ol' `finally` block. – asteri Nov 13 '14 at 19:49 — asteri, Nov 13 '14 at 19:49
can you be specific? Better to show some codes. – chrisTina Nov 13 '14 at 19:49 — chrisTina, Nov 13 '14 at 19:49
http://stackoverflow.com/a/17653793/1888799 – veysiertekin Nov 13 '14 at 19:52 — veysiertekin, Nov 13 '14 at 19:52

score 5 · Accepted Answer · answered Nov 13 '14 at 19:50

To re-write a try-with-resource statement compatible with Java 1.6, do the following:

Declare the variable before the try block begins.
Create the variable at the top of the try block.
Add a finally block that will close the resource.

Example:

InputStream stream = null;
try
{
    stream = getClass().getResourceAsStream(PROPERTY_FILE));
    // Rest of try block is the same
}
// catch block is the same
finally
{
    if (stream != null)
    {
        try {
            stream.close();
        } catch (IOException ignored) { }
    }
}

'try catch' reconstruction from java 1.7 to java 1.6

1 Answers1