src/main/java/software/amazon/awssdk/crt/auth/credentials/EcsCredentialsProvider.java [57:93]:
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            );

            acquireNativeHandle(nativeHandle);
            addReferenceTo(bootstrap);
            if (builder.tlsContext != null) {
                addReferenceTo(builder.tlsContext);
            }

            if (builder.clientBootstrap != null) {
                bootstrap.addRef();
            }
        }
        catch (Exception e) {
            super.close();
            throw e;
        }
    }

    /**
     * A builder for creating a custom ECS credentials provider.
     */
    public interface Builder {
        /**
         * Sets the client bootstrap (host resolver and event loop group) to use when making the connections
         * required by this provider. The default is a bootstrap which uses the static default event loop group and host
         * resolver.
         * @param clientBootstrap client bootstrap to use
         * @return The current builder
         */
        Builder withClientBootstrap(ClientBootstrap clientBootstrap);

        /**
         * Sets the tls context to use for any secure network connections made while sourcing credentials.
         * @param tlsContext the tls context to use when establishing network connections
         * @return The current builder
         */
        Builder withTlsContext(TlsContext tlsContext);
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src/main/java/software/amazon/awssdk/crt/auth/credentials/ProfileCredentialsProvider.java [56:92]:
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            );

            acquireNativeHandle(nativeHandle);
            addReferenceTo(bootstrap);
            if (builder.tlsContext != null) {
                addReferenceTo(builder.tlsContext);
            }

            if (builder.clientBootstrap != null) {
                bootstrap.addRef();
            }
        }
        catch (Exception e) {
            super.close();
            throw e;
        }
    }

    /**
     * A builder for creating a custom profile credentials provider.
     */
    public interface Builder {
        /**
         * Sets the client bootstrap (host resolver and event loop group) to use when making the connections
         * required by this provider. The default is a bootstrap which uses the static default event loop group and host
         * resolver.
         * @param clientBootstrap client bootstrap to use
         * @return The current builder
         */
        Builder withClientBootstrap(ClientBootstrap clientBootstrap);

        /**
         * Sets the tls context to use for any secure network connections made while sourcing credentials.
         * @param tlsContext the tls context to use when establishing network connections
         * @return The current builder
         */
        Builder withTlsContext(TlsContext tlsContext);
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