Update To JRE7, can not load nativelib jar, but JRE6 works fine

Question

For my JNLP file , there is some nativelib info like below:

<resources os="Windows">
    <nativelib href="lib/x264-win.jar" />
</resources>
<resources os="SunOS" arch="sparc">
    <nativelib href="lib/x264-SunOS-sparc.jar" />
</resources>
<resources os="SunOS" arch="x86">
    <nativelib href="lib/x264-SunOS-x86.jar" />
</resources>

When I Update To JRE7, can not load nativelib jar, but JRE6 works fine.

The load nativelib code like below:

String source = "x264.jar";
ClassLoader cl = Thread.currentThread().getContextClassLoader();
URL url= cl.getResource(source);

"x264.jar" is one jar in x264-win.jar,lib/x264-SunOS-sparc.jar or lib/x264-SunOS-x86.jar.

When I used JRE6 to load x264.jar, it worked fine. But when I updated to JRE7, it can not load x264.jar.

When use JRE6, url would be"x264.jar" info, like jar:http://test.local:8080/JNLP.jar!/x264.jar, but use JRE7, url would be null, and I found code not load nativelib "x264.jar"

Does any one have find JRE7 can not load nativelib.jar? Is the problem of using Thread.currentThread().getContextClassLoader() to load "x264.jar"?

Answer 1

Ensure that you have the correct bitwise native binary to match your JRE. If you are testing on a 64-bit JRE, you need a 64-bit native binary. If you're testing on a 32-bit JRE, you need a 32-bit native binary. You might need to include resources for each of these three:

<resources os="Windows" arch="amd64">
<resources os="Windows" arch="x86_64">
<resources os="Windows" arch="x86">