src/jdk.net/linux/classes/jdk/internal/net/rdma/LinuxRdmaSocketImpl.java

*** 32,54 ****
  import sun.net.ext.RdmaSocketOptions;
  import static jdk.internal.net.rdma.RdmaSocketImpl.PlatformRdmaSocketImpl;
  
  class LinuxRdmaSocketImpl extends PlatformRdmaSocketImpl
  {
      static {
          java.security.AccessController.doPrivileged(
              new java.security.PrivilegedAction<>() {
                  public Void run() {
                      System.loadLibrary("net");
                      System.loadLibrary("extnet");
                      return null;
                  }
              });
          initProto();
      }
  
!     public LinuxRdmaSocketImpl() { }
  
      static final RdmaSocketOptions rdmaOptions =
              RdmaSocketOptions.getInstance();
  
      private static volatile boolean checkedRdma;
--- 32,73 ----
  import sun.net.ext.RdmaSocketOptions;
  import static jdk.internal.net.rdma.RdmaSocketImpl.PlatformRdmaSocketImpl;
  
  class LinuxRdmaSocketImpl extends PlatformRdmaSocketImpl
  {
+     private static final UnsupportedOperationException unsupported;
+ 
+     private static final Void checkSupported() {
+         if (unsupported != null)
+             throw new UnsupportedOperationException(unsupported.getMessage(), unsupported);
+         else
+             return null;
+     }
+ 
      static {
          java.security.AccessController.doPrivileged(
              new java.security.PrivilegedAction<>() {
                  public Void run() {
                      System.loadLibrary("net");
                      System.loadLibrary("extnet");
                      return null;
                  }
              });
+         UnsupportedOperationException uoe = null;
+         try {
              initProto();
+         } catch (UnsupportedOperationException e) {
+             uoe = e;
+         }
+         unsupported = uoe;
+     }
+ 
+     public LinuxRdmaSocketImpl() {
+         this(checkSupported());
      }
  
!     private LinuxRdmaSocketImpl(Void unused) { }
  
      static final RdmaSocketOptions rdmaOptions =
              RdmaSocketOptions.getInstance();
  
      private static volatile boolean checkedRdma;
*** 78,88 ****
          if (socketInputStream != null) {
              ((RdmaSocketInputStream)socketInputStream).setEOF(true);
          }
      }
  
!     static native void initProto();
  
      private static native boolean isRdmaAvailable0();
  
      native void rdmaSocketCreate(RdmaSocketImpl impl) throws IOException;
  
--- 97,107 ----
          if (socketInputStream != null) {
              ((RdmaSocketInputStream)socketInputStream).setEOF(true);
          }
      }
  
!     static native void initProto() throws UnsupportedOperationException;
  
      private static native boolean isRdmaAvailable0();
  
      native void rdmaSocketCreate(RdmaSocketImpl impl) throws IOException;