} else if (logger.isInfoEnabled()) {
                logger.info("Crawler is stopped.");
            }
            exitCode = Constants.EXIT_FAIL;
        } catch (final Throwable t) {
            logger.error("Crawler does not work correctly.", t);
            exitCode = Constants.EXIT_FAIL;
        } finally {
            if (commandThread != null && commandThread.isAlive()) {
                commandThread.interrupt();

    static {
      try {
        UNSAFE = getUnsafe();
        HEAD_OFFSET = UNSAFE.objectFieldOffset(ExecutionListCAS.class.getDeclaredField("head"));
      } catch (Exception ex) {
        throw new Error(ex);
      }
    }

    /** TODO(lukes): This was copied verbatim from Striped64.java... standardize this? */
    private static Unsafe getUnsafe() {
      try {
        return Unsafe.getUnsafe();

        int start = bufferIndex;
        int structureSize = SMBUtil.readInt2(buffer, bufferIndex);
        if ( structureSize != 9 ) {
            throw new SMBProtocolDecodingException("Error structureSize should be 9");
        }
        this.errorContextCount = buffer[ bufferIndex + 2 ];
        bufferIndex += 4;

        int bc = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

Update `get_current_user` to receive the same token as before, but this time, using JWT tokens.

Decode the received token, verify it, and return the current user.

If the token is invalid, return an HTTP error right away.

//// tab | Python 3.10+

```Python hl_lines="90-107"
{!> ../../docs_src/security/tutorial004_an_py310.py!}
```

////

//// tab | Python 3.9+

```Python hl_lines="90-107"

  TFE_DeleteOp(op);

  // The device of var_handle1 is remote device, which was replaced during
  // cluster update. Removing resource with invalid device should fail
  // gracefully (i.e., with error status) instead of crashing with segfaults.
  op = TFE_NewOp(ctx, "DestroyResourceOp", status);
  ASSERT_EQ(TF_OK, TF_GetCode(status)) << TF_Message(status);
  TFE_OpAddInput(op, var_handle1, status);

          .c_str());
  return nullptr;
}

// For TFE_CustomDevice::copy_tensor_from_device in the parallel device
// registration.
//
// Currently this is an error, and un-packing ParallelTensors must be performed
// explicitly by running a TPUReplicatedOutput operation on the parallel device.
//
// TODO(allenl): There are some use-cases that are only supported by copying to

  // 'test' to demonstrate some potentially ambiguous overloads.  This 'test' is kind of strange,
  // but essentially each line will be a call to a Preconditions method that, but for a documented
  // change would be a compiler error.
  // See http://docs.oracle.com/javase/specs/jls/se7/html/jls-15.html#jls-15.12.2 for the spec on
  // how javac selects overloads
  @SuppressWarnings("null")
  public void overloadSelection() {

    try {
      return parseUnsignedInt(request.rawValue, request.radix);
    } catch (NumberFormatException e) {
      NumberFormatException decodeException =
          new NumberFormatException("Error parsing value: " + stringValue);
      decodeException.initCause(e);
      throw decodeException;
    }
  }

  /**
   * Returns the unsigned {@code int} value represented by the given decimal string.
   *

    try {
      return parseUnsignedInt(request.rawValue, request.radix);
    } catch (NumberFormatException e) {
      NumberFormatException decodeException =
          new NumberFormatException("Error parsing value: " + stringValue);
      decodeException.initCause(e);
      throw decodeException;
    }
  }

  /**
   * Returns the unsigned {@code int} value represented by the given decimal string.
   *

Type},typeCheckConfig:function(t,e,n){for(var i in n)if(Object.prototype.hasOwnProperty.call(n,i)){var o=n[i],r=e[i],s=r&&_.isElement(r)?"element":(a=r,{}.toString.call(a).match(/\s([a-z]+)/i)[1].toLowerCase());if(!new RegExp(o).test(s))throw new Error(t.toUpperCase()+': Option "'+i+'" provided type "'+s+'" but expected type "'+o+'".')}var a},findShadowRoot:function(t){if(!document.documentElement.attachShadow)return null;if("function"!=typeof t.getRootNode)return t instanceof ShadowRoot?t:t.par...