Splitter.on('-').split("Testing-rocks-Debugging-sucks");
    assertThat(testCharacteringMotto)
        .containsExactly("Testing", "rocks", "Debugging", "sucks")
        .inOrder();
  }

  public void testCharacterSplitWithMatcherDelimiter() {
    Iterable<String> testCharacteringMotto =
        Splitter.on(CharMatcher.whitespace()).split("Testing\nrocks\tDebugging sucks");
    assertThat(testCharacteringMotto)

        Splitter.on('-').split("Testing-rocks-Debugging-sucks");
    assertThat(testCharacteringMotto)
        .containsExactly("Testing", "rocks", "Debugging", "sucks")
        .inOrder();
  }

  public void testCharacterSplitWithMatcherDelimiter() {
    Iterable<String> testCharacteringMotto =
        Splitter.on(CharMatcher.whitespace()).split("Testing\nrocks\tDebugging sucks");
    assertThat(testCharacteringMotto)

				// looks like a where condition
				return []clause.Expression{clause.Expr{SQL: s, Vars: args}}
			}

			if len(args) > 0 && strings.Contains(s, "@") {
				// looks like a named query
				return []clause.Expression{clause.NamedExpr{SQL: s, Vars: args}}
			}

			if strings.Contains(strings.TrimSpace(s), " ") {
				// looks like a where condition

	if field, ok := schema.FieldsByDBName[name]; ok {
		return field
	}
	if field, ok := schema.FieldsByName[name]; ok {
		return field
	}
	return nil
}

// LookUpFieldByBindName looks for the closest field in the embedded struct.
//
//	type Struct struct {
//		Embedded struct {
//			ID string // is selected by LookUpFieldByBindName([]string{"Embedded", "ID"}, "ID")
//		}

			if err != nil {
				return err
			}

			sort.Slice(hooks, func(i, j int) bool {
				return hooks[i].Name < hooks[j].Name
			})
			return printHooks(cmd.OutOrStdout(), nslist, hooks, injectedImages)
		},
	}

	return cmd
}

func filterSystemNamespaces(nss []corev1.Namespace, istioNamespace string) []corev1.Namespace {
	filtered := make([]corev1.Namespace, 0)
	for _, ns := range nss {

    private final List<Thread> hooks = Lists.newArrayList();

    @Override
    synchronized void addShutdownHook(Thread hook) {
      hooks.add(hook);
    }

    synchronized void shutdown() throws InterruptedException {
      for (Thread hook : hooks) {
        hook.start();
      }
      for (Thread hook : hooks) {
        hook.join();
      }
    }
  }

    private final List<Thread> hooks = Lists.newArrayList();

    @Override
    synchronized void addShutdownHook(Thread hook) {
      hooks.add(hook);
    }

    synchronized void shutdown() throws InterruptedException {
      for (Thread hook : hooks) {
        hook.start();
      }
      for (Thread hook : hooks) {
        hook.join();
      }
    }
  }

We are going to start from where we left in the previous chapter and increment it.

## About JWT

JWT means "JSON Web Tokens".

It's a standard to codify a JSON object in a long dense string without spaces. It looks like this:

```
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c
```

package callbacks

import (
	"fmt"
	"reflect"
	"strings"

	"gorm.io/gorm"
	"gorm.io/gorm/clause"
	"gorm.io/gorm/schema"
	"gorm.io/gorm/utils"
)

// BeforeCreate before create hooks
func BeforeCreate(db *gorm.DB) {
	if db.Error == nil && db.Statement.Schema != nil && !db.Statement.SkipHooks && (db.Statement.Schema.BeforeSave || db.Statement.Schema.BeforeCreate) {
		callMethod(db, func(value interface{}, tx *gorm.DB) (called bool) {

    rare occasion we may reject it.

**3. Review**

-   For a valid PR, reviewer (person familiar with the code/functionality)
    checks if the PR looks good or needs additional changes.
-   If all looks good, the reviewer will approve the PR.
-   If a change is needed, the contributor is requested to make the suggested
    change.
-   You make the change and submit it for the review again.