All built as reusable tools and components that are easy to integrate with your systems, data stores, relational and NoSQL databases, etc.

### Dependency Injection { #dependency-injection }

FastAPI includes an extremely easy to use, but extremely powerful <abbr title='also known as "components", "resources", "services", "providers"'><strong>Dependency Injection</strong></abbr> system.

                "test-grp", "test-artifact-5", VersionRange.createFromVersion("1.0"), "type", null, "system", "system");

        assertEquals("system", artifact.getScope());
        assertEquals("system", artifact2.getScope());
        assertEquals("system", artifact3.getScope());
        assertEquals("system", artifact4.getScope());
        assertEquals("system", artifact5.getScope());
    }

        }
    }

    private static final ArtifactScopeEnum[][][] COMPLIANCY_SETS = {
        {{compile}, {compile, provided, system}},
        {{test}, {compile, test, provided, system}},
        {{runtime}, {compile, runtime, system}},
        {{provided}, {compile, test, provided}}
    };

    /**
     * scope relationship function. Used by the graph conflict resolution policies
     *

        byte[] buffer2 = new byte[100];

        System.arraycopy(firstData, 0, buffer1, 0, firstData.length);
        System.arraycopy(secondData, 0, buffer2, 0, secondData.length);

        // First read
        response.readDataWireFormat(buffer1, 0, firstData.length);
        byte[] firstResult = new byte[firstData.length];
        System.arraycopy(outputBuffer, 0, firstResult, 0, firstData.length);

        if (nonce.length == 12) {
            // For CCM cipher, pad nonce to 16 bytes with zeros
            System.arraycopy(nonce, 0, this.nonce, 0, 12);
            // Last 4 bytes remain zero-initialized
        } else if (nonce.length == 16) {
            // For GCM cipher, use full 16-byte nonce
            System.arraycopy(nonce, 0, this.nonce, 0, 16);
        } else {

        System.out.printf("%.2f Executing call.%n", (System.nanoTime() - startNanos) / 1e9f)
        try {
          call.execute().use { response ->
            System.out.printf("%.2f Call was expected to fail, but completed: %s%n",
                (System.nanoTime() - startNanos) / 1e9f, response)
          }
        } catch (e: IOException) {
          System.out.printf("%.2f Call failed as expected: %s%n",

        // Test with no rules
        long start = System.currentTimeMillis();
        helper.delayByRules();
        long end = System.currentTimeMillis();
        assertTrue(end - start < 50); // Should return quickly

        // Test with rule that has no delay
        helper.addIntervalRule("01:30", "15:15", "*", 0);
        start = System.currentTimeMillis();
        helper.delayByRules();

            "A device attached to the system is not functioning.", "Incorrect function.", "The parameter is incorrect.",
            "Invalid access to memory location.", "The handle is invalid.", "The parameter is incorrect.",
            "The system cannot find the file specified.", "The system cannot find the file specified.", "End of file",

        // Verify customData part
        byte[] actualCustomData = new byte[8];
        System.arraycopy(value, 8, actualCustomData, 0, 8);
        assertArrayEquals(customData, actualCustomData);

        // Verify machineId part
        byte[] actualMachineId = new byte[32];
        System.arraycopy(value, 16, actualMachineId, 0, 32);
        assertArrayEquals(machineId, actualMachineId);
    }

    /**

     */
    @Nonnull
    Map<String, String> userProperties();

    /**
     * Returns a map of system properties for the Maven execution.
     * These include both Java system properties and Maven-specific system properties.
     *
     * @return an unmodifiable map of system properties
     */
    @Nonnull
    Map<String, String> systemProperties();

    /**