VMCompiler.java (compileClass): Ignore UnknownError.

* java/lang/VMCompiler.java (compileClass): Ignore UnknownError.
	* gnu/gcj/runtime/natSharedLibLoader.cc (finalize): Only dlclose
	if 'handler' is valid.

From-SVN: r93927

libjava/java/lang/VMCompiler.java

@@ -1,5 +1,5 @@
 /* VMClassLoader.java -- Reference implementation of compiler interface
-   Copyright (C) 2004 Free Software Foundation
+   Copyright (C) 2004, 2005 Free Software Foundation
 
 This file is part of GNU Classpath.
 
@@ -202,6 +202,11 @@ final class VMCompiler
 	catch (Exception _)
 	  {
 	  }
+	catch (UnknownError _)
+	  {
+	    // SharedLibHelper will throw UnknownError if the dlopen
+	    // fails for some reason.  We ignore it and continue on.
+	  }
       }
  
     if (! useCompiler || ! canUseCompiler)