#fixed code
                                protected final boolean sendStopToPostgresqlInstance() {
        final boolean result = shutdownPostgres(getConfig());
        if (runtimeConfig.getArtifactStore() instanceof PostgresArtifactStore) {
            final IDirectory tempDir = ((PostgresArtifactStore) runtimeConfig.getArtifactStore()).getTempDir();
            if (tempDir != null && tempDir.asFile() != null) {
                logger.log(Level.INFO, format("Cleaning up after the embedded process (removing %s)...",
                        tempDir.asFile().getAbsolutePath()));
                forceDelete(tempDir.asFile());
            }
        }
        return result;
    }
#vulnerable code 
                                protected final boolean sendStopToPostgresqlInstance() {
        final boolean result = shutdownPostgres(getConfig());
        if (runtimeConfig.getArtifactStore() instanceof PostgresArtifactStore) {
            final IDirectory tempDir = ((PostgresArtifactStore) runtimeConfig.getArtifactStore()).getTempDir();
            if (tempDir != null && tempDir.asFile() != null) {
                logger.log(Level.INFO, format("Cleaning up after the embedded process (removing %s)...",
                        tempDir.asFile().getAbsolutePath()));
            }
            forceDelete(tempDir.asFile());
        }
        return result;
    } 
                            #location 9 
                            #vulnerability type NULL_DEREFERENCE