Comment 9 for bug 737603

Steve

So I tried out the patch (took some time to build ppa:james-page/junk) and did some more digging when it did not appear to work.

I managed to capture a stacktrace when the issue occured:

java.lang.UnsatisfiedLinkError: Unable to load library 'pam': libpam.so: cannot open shared object file: No such file or directory
 at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:164)
 at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:237)
 at com.sun.jna.Library$Handler.(Library.java:140)
 at com.sun.jna.Native.loadLibrary(Native.java:374)
 at com.sun.jna.Native.loadLibrary(Native.java:359)
 at org.jvnet.libpam.impl.PAMLibrary.(PAMLibrary.java:132)
 at sun.misc.Unsafe.ensureClassInitialized(Native Method)
 at sun.reflect.UnsafeFieldAccessorFactory.newFieldAccessor(UnsafeFieldAccessorFactory.java:43)
 at sun.reflect.ReflectionFactory.newFieldAccessor(ReflectionFactory.java:140)
 at java.lang.reflect.Field.acquireFieldAccessor(Field.java:936)
 at java.lang.reflect.Field.getFieldAccessor(Field.java:917)
 at java.lang.reflect.Field.get(Field.java:376)
 at com.sun.jna.Native.loadLibraryInstance(Native.java:398)
 at com.sun.jna.Native.getStructureAlignment(Native.java:507)
 at com.sun.jna.Structure.setAlignType(Structure.java:191)
 at com.sun.jna.Structure.(Structure.java:149)
 at com.sun.jna.Structure.(Structure.java:145)
 at com.sun.jna.Structure.(Structure.java:141)
 at com.sun.jna.Structure.(Structure.java:132)

So it looks like the issue (or maybe one of them) is actually in libjna-java; I'm pretty sure that openjdk may exhibit the same symptoms but the issue reading libpam.so is generated outside of openjdk.

I'll look into the specific library to see what its doing - suspect it something horrible with guessed paths but it may be related to the java.library.path variable.